Answer:
the answer is true
Explanation:
hope it helped
A tissue has these characteristics; apical surface, simgle layer of tall narrow cells. brush border, goblet cells. what descriptors can define those characteristic?
C. secretion, absorption, simple epithelium, and columnar cells
The characteristic of the tissue which they have are secretion, absorption, simple epithelium, and columnar cells.
Secretion- The procedure of separating, developing, and releasing some substance that is either separated for excretion or has been functionally specialized (like saliva) (such as urine).
Absorption- The procedure through which nutrients are transferred into the blood from the digestive system for usage by the body.
Simple epithelium- A simple cellular layer makes up a simple epithelium. It serves as a lining for tubes, cavities in the body, and ducts. There are three forms of simple epithelium.
Columnar cells- The long, thin cells of columnar epithelial tissues resemble columns. These are typically seen in mucus-secreting areas, such the stomach. Additionally, they may be trained to pick up sensory data from the nose and taste receptors on our tongue.
The given question is incomplete, find below the complete question
Q. A tissue has these characteristics: apical surface, single layer of tall narrow cells, brush border, goblet cells. What descriptors illustrate what this tissue should be capable of doing or being?
1. secretion
2. absorption
3. simple epithelium
4. stratified epithelium
5. squamous cells
6. columnar cells
7. cuboidal cells
8. movement
A.1, 3, 6, 8
B.2, 3, 5, 8
C.1, 2, 3, 6
D.2, 4, 7, 8
E.1, 2, 4, 7, 8
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She notices that the muscle cells are loaded with mitochondria while the macrophages have abundant lysosomes. why is this so?
The muscle cells are loaded with mitochondria to allow large amounts of ATP production while the macrophages have abundant lysosomes to digest the debris and dead organisms like bacteria.
Mitochondria are known as the powerhouse of a cell. This is because most of the ATP production used by various systems in their operation is produced by mitochondria. A chemical called NADH is produced in the mitochondrial matrix through the Krebs cycle. The enzymes embedded in the mitochondrial membrane use this chemical to produce Adenosine Triphosphate, generally known as ATP.
Macrophages are phagocytic white blood cells involved in engulfing and killing pathogens. They are involved in the innate immune response of the body. Lysosomes have specialized enzymes that can kill these pathogens.
Muscle cells need to contract or expand for which they require energy. Thus, they have abundant mitochondria. Whereas, the macrophages have abundant lysosomes to help them kill disease-causing pathogens like a virus or bacteria.
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The relationship between a legume and bacteria in its root nodules is best described as:_________
The relationship between a legume and bacteria in its root nodules is best described as Mutualism.
Mutualism- Mutualism is a sort of symbiotic association in which all of the participating species gain from one another. Even though mutualism is extremely complicated, it may be loosely divided into two different kinds of relationships.
Bacteria- Bacteria are unicellular, self-replicating microorganisms that are typically free-living. Bacteria may be found all over the natural world. They are the basis of all life on earth and are simplistic in terms of architecture but highly developed in terms of functionality. A few different kinds of bacteria include Lactobacillus, nitrogen-fixing bacteria, Bifidobacterium, Helicobacter pylori, Staphylococcus, and Streptococcus.
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Which solution is most acidic?
A.pH=3
B.pH=7
C.pH=10
D.pH=14
Answer: A
Explanation: The lower pH is higher acidity, and 3 is the lowest so it is the most acidic.
In adults, which bone marrow is limited to the axial skeleton, pectoral and pelvic girdles, and proximal heads of the humerus and femur?
Red bone marrow in adults is only found in the axial skeleton, the pectoral and pelvic girdles, and the proximal heads of the humerus and femu.
What is bone marrow?
The spongy substance found inside a few of the body's bones, notably the hip and thigh bones, is called bone marrow. Stem cells, which are immature cells, are found in bone marrow. Blood cells and healthy bone marrow are essential for human survival. A marrow or cord blood transplant may be the best course of treatment when a disorder or illness damages bone marrow to the point where it is no longer able to function properly.
Red bone marrow is limited to the axial skeleton, pectoral and pelvic girdles, and proximal heads of the humerus and femur in adults.
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Simple reflexive motor responses to external stimuli rely primarily on the function of the ________, while motor behaviors that are voluntarily generated are the function of the ________.
Simple reflexive motor responses to external stimuli rely primarily on the function of the Spinal cord, while motor behaviors' that are voluntarily generated are the function of the motor cortex.
Spinal reflexes are those in which sensory impulses are received through receptors in the muscles, joints, and skin, and the neural circuitry responsible for the motor response is fully confined inside the spinal cord. Although the neural circuits that control spinal reflexes are basic, descending effects from higher brain areas frequently exploit these spinal circuits to produce more sophisticated behavior. Brian stem reflexes, such as gagging and the vestibulo-ocular reflex, operate on the same principles.
The brain controls all voluntary motions of the body. The motor cortex is one of the brain regions primarily engaged in controlling these voluntary movements. The motor cortex is found in the back of the frontal lobe, right before the central sulcus (furrow) that connects the frontal and parietal lobes. The motor cortex is split into two sections, Areas 4 and 6. Area 4 is commonly known as the main motor cortex; it runs along the central sulcus in a narrow strip.
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Atoms that readily lose electrons have:
Answer:
2nd option
Explanation:
Atoms with low ionization energy and low electron affinity (metals) tend to lose electrons and become positive ions. Atoms with high ionization energy and high electron affinity (nonmetals) tend to gain electrons and become negative ions.
How and why have humans modified the ecosystem in the everglades? what have the intended and unintended consequences been?
The humans modified the ecosystem within the everglades because US Army CORPS of engineers built a levee around Lake Okeechobee, which drained about 1/3 of the Everglades.
Reason :This then cause building canals, and more levees which then create more acreage to grow crops (such as sugarcane).If the wetlands suffer, so do humans will. Humans are a part of the Everglades ecosystem because they depend on it for survival. the shortage of biodiversity caused by invasive plant species, which is in a position to spread throughout new ecosystems, means humans may lose access to good jobs, and safe water supplies for drinking and farming.
Steps for improvement :So, humans are presumably working to improve the Everglades to protect their tourism industries and water supplies. it's intended to restore, protect, and preserve the Everglades by capturing freshwater that flows unaccustomed the ocean and the gulf, and redirect it to areas that require it most for environmental restoration. because the Everglades become a more livable environment, it'll be easier for species to recover or restore along with the land.
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1.1.4 Quiz: The Scientific Process
Question 3 of 10
What is the next step in the scientific method, following data collection?
O A. Forming a hypothesis
OB. Stating the question
OC. Analyzing the data
SUBMIT
The next step is analyzing the data.
Scientists employ the scientific method to study the world in which they live. It may also be used to determine the veracity of any assertion.The first step in the scientific process is to define the issue and formulate a testable hypothesis. Making observations using your five senses and accumulating data can help you find the solution to a scientific inquiry.Making a hypothesis is the second step in the scientific process. An explanation for a group of observations or a response to a scientific enquiry is referred to as a hypothesis.The next step in the scientific process is to create an experiment to test the hypothesis. This entails putting together a materials list and a method, which is a detailed description of how to carry out the experiment.Therefore, option C. is correct.
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Which offers the best prognosis for the cure of cancer?
a. surgery
b. radiation
c. early detection
d. chemotherapeutic agents
Offers the best prognosis for the cure of cancer early detection.
The correct option is C.
Why is prognosis so important?In managing patients and making decisions, prognosis is crucial. One of the main goals of clinical research is to evaluate the prognostic variables that link the clinical and experimental baseline covariables to outcomes.
Describe a prognosis example:For instance, statistics examining the 5-year survival rate for a specific disease may be many years old from the time they were reported, new and improved treatments may have become available. One condition whose "prognosis" may not be entirely reliable is lung cancer.
What types of prognosis are there?It is possible to give a prognosis of excellent, good, fair, bad, or even hopeless. The risk factors and indications that are present in the patient have a significant impact on the prognosis for a disease or condition.
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It is possible for a repressor to negatively regulate the expression of an operon because?
It is possible for a repressor to negatively regulate the expression of an operon because option(c) i.e, the repressor binding site overlaps the promoter site of the operon allowing it to physically block the binding of RNA polymerase.
An operon is a collection of genes that are all translated into a single messenger RNA (mRNA) molecule, which in turn encodes a number of different proteins (Fig. 16.11). In prokaryotes, this type of polycistronic mRNA is commonly seen.
This characteristic enables coordinated control of protein production in response to cellular requirements. The operon enables the cell to conserve energy, which is a crucial component of an organism's life strategy. It does this by giving the cell the tools to create proteins only when and where they are needed.
operon, a genetic regulatory system present in bacteria and their viruses and characterized by the clustering along the DNA of genes encoding functionally related proteins. This characteristic enables coordinated control of protein production in response to cellular requirements.
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The complete question is:
It is possible for a repressor to negatively regulate the expression of an operon because:
a. the repressor induces the expression of inducer.
b. one of the genes expressed in the operon negatively regulates the repressor.
c. the repressor binding site overlaps the promoter site of the operon allowing it to physically block the binding of RNA polymerase.
d. the repressor binding site on the DNA overlaps with the translation start site.
The growing or farming of marine plants or animals under controlled conditions is called?
If your ________ is destroyed, the left side of your brain could not control the movements of your right hand.
a. brainstem
b. hippocampus
c. amygdala
d. corpus callosum
If your brainstem is destroyed, the left side of your brain could not control the movements of your right hand.
Brainstem- The brainstem is the region at the base of the brain that is located between the cervical spinal cord and the deep cerebral hemispheres. It plays a crucial role in controlling some involuntary bodily functions like breathing and heartbeat.
Spinal cord- A column of nerve fibers that extends from the skull base to the middle of the back. It has three thin membrane-like layers of protecting tissue covering it. The vertebrae encircle the spinal cord and its surrounding membranes (back bones).
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Adenosine regulates synaptic activity through its actions on:___.
Adenosine regulates synaptic activity through its actions on presynaptic autoreceptors. Adenosine A1 receptors are expressed at a presynaptic locus withinside the BLA and that activation those receptors substantially inhibits glutamate launch possibility onto BLA pyramidal neurons.
The adenosine A2A receptor is a G-protein-coupled receptor that may be a most important goal of caffeine and vital for regulating myocardial oxygen consumption, coronary blood flow, and CNS neurotransmitters, hence a receptor of hobby for brand new drug development.
The adenosine A2A receptor is particularly gift with inside the brain, heart, lungs, and spleen. The adenosine A2B receptor has its most important distribution with inside the big gut and bladder, and the adenosine A3 receptor is gift inside the lungs, liver, brain, testis, and heart.
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Explain in your own words how volume is measured.
Answer: Volume is measured by length x width x height.
Explanation: how that helps.
What is the molecule (labeled a) that is removed from monomers during dehydration synthesis to create the disaccharide?
H₂O molecule (labeled a) that is removed from monomers during dehydration synthesis to create the disaccharide.
Dehydration synthesis :A water molecule is released during the process of making larger molecules out of smaller monomers, which is known as dehydration synthesis. This can be applied to the synthesis of big biological molecules like triglycerides and carbohydrate polymers, as well as artificial polymers such polyethylene terephthalate (PET).
The dehydration synthesis reaction is used in a wide range of biological or chemical activities. Examples include the conversion of monosaccharides like glucose into disaccharides like sucrose and the condensation of alcohol to produce ether. A dehydration synthesis reaction may be catalyzed by an acid.
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Please help! Im not sure if it’s primary or secondary because there was ground flora at year 0.
This seems like secondary succession because When a climax community or an intermediate community is affected by a disturbance, secondary succession occurs. The succession cycle is restarted, but not to the start because the soil and nutrients are still there.
The process of natural communities gradually replacing (or "succeeding") one another is known as ecological succession. For instance, if an old farm field is abandoned and left unattended for a long period of time, it eventually transforms into a forest as trees entirely occupy the land. Every plant community fosters the circumstances necessary for other plant communities to flourish. While later colonizers like shrubs and trees may provide cover and shade, early colonizers like grasses may enrich the soil with nutrients. When a "climax" community develops, succession temporarily halts; these communities maintain a state of relative balance until a disruption triggers the succession process to resume. Similarly, here we see that the land is abandoned and all the plant species community retained its survival and attained a stage of climax community. There is no new plant community appeared here. So, it's secondary succession.
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Consider the three environments of a firm. which of the environments has the most direct and immediate impact on the firm? which of the environments has a more diffuse and delayed impact? explain.
The internal environment of the environments has the most direct and immediate impact on the firm
The general environment of the environments has a more diffuse and delayed impact
The internal and exterior surroundings of an organization are distinguished from one another. Everything outside of an organization's walls that could have an impact on it is referred to as the external environment. The general environment and the task environment are the two external environments that exist. The set of broad dimensions and factors that make up an organization's surroundings and establish its broader context are referred to as the general environment. An illustration of the general external environment is the political and legal aspect of society, which has an impact on the organization by imposing various laws to regulate its production.The specific organizations or groups that have an impact on an organization are referred to as the task environment. Examples include clients, rivals, authorities, business associates, and suppliers. Customers, for instance, have a significant influence on the products that a business will advertise (because the customers have needs and prefer specific products over others). The organization is also impacted by customer satisfaction because if a consumer complains, the business must adapt in order to satisfy the customer, or its reputation would suffer.Out of the two external environments, the general environment is the one that has an impact on the organization that is more scattered and delayed. The conditions and forces that exist within an organization are referred to as its internal environment. The internal environment, which drives the firm's decision-making, has an immediate and direct effect on it.The owners, board of directors, workers, work environment, cultures, and physical environment make up an organization's internal environment. For instance, the board of directors oversees the general management of the company and makes sure it is being operated properly and in the benefit of the stockholders. Thus, the board of directors has a direct impact on the company since they decide whether a procedure, partnership, or product is insufficient and needs to be discontinued in order to benefit stockholders. It is ultimately up to the internal environment to decide and take direct action. External shareholders, like customers and suppliers, are a part of the task environment and can influence the board of directors by expressing that some processes are not to their liking.To learn more environments of firm visit:
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invisible living creatures were thought to exist and cause disease long before they were ever observed.
invisible living creatures were thought to exist and cause disease long before they were ever observed. True
Microbes are the invisible living creatures that were thought to cause diseases long before they existed. They are so small that they are not visible with the normal eyes.
Even before the discovery of the microbes their presence was speculated in ancient times, prove of which exist in the jain literature.
Microorganisms are moslty unicellular organism, which can live in a very diverse condition including all archaea, bacteria and few eukaryotes as well.
They are considered to be the most primitive organism that must have existed after the formation of earth.
They effect our life in both positive and negative manner.
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Most viruses form a capsid around their nucleic acid core. this capsid is composed of?
In pea plants, green color (G) is dominant to albino (g). If we cross two pea plants that are heterozygous for color, what would be the expected phenotype ratio of the offspring? Do the Punnett square and write the phenotypic ratio in the space below:
Explanation:
risky behavior and abuse
When two heterozygous plants are crossed, then the offspring will be of two different phenotypes, such as green and albino. Out of the four individuals, three will be green and one will be albino. The phenotypic ratio is 3:1.
What is a monohybrid cross?A monohybrid cross involves a single character or trait. Example: the colour of a pea plant. In the pea plant, green is dominant over albino. Green colour is represented by G. Albino colour is represented by g.
The homozygous green plant is represented by GG. The heterozygous green plant is represented by Gg . The homozygous albino plant is represented by gg .
When two heterozygous plants (Gg) are crossed, each parent will produce two types of gametes, such as G and g. There will be offspring of the GG, Gg and gg type. Both homozygous (GG) and heterozygous (Gg) plants will be green. The punnett square is explained below
Hence, there will be two different phenotypes, such as green and albino, from the cross of two heterozygous individuals. The phenotypic ratio is 3:1.
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Primary lymphoid tissues are the sites where lymphocytes _______, whereas secondary lymphoid tissues are the sites where lymphocytes _______.
Primary lymphoid tissues are the sites where lymphocytes develop and mature whereas secondary lymphoid tissues are the sites where lymphocytes are stimulated.
What are lymphoid tissues?Lymphoid tissues are tissue which form part of the lymphatic system of the body.
The lymphatic system is the system of the body which is concerned with the production of the immune cells and in which the lymph circulates.
The primary lymphoid tissues are the bone marrow and thymus where there lymphocyte develop and mature.
The secondary lymphoid tissue include the lymph nodes, spleen, tonsils and Peyer's patches and are the sites where lymphocytes are stimulated.
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Note that the complete question is given as:
Primary lymphoid tissues are the sites where lymphocytes ____, whereas secondary lymphoid tissues are the sites where lymphocytes ____.
a. are stimulated; develop and mature
b. encounter pathogens; undergo apoptosis
c. develop and mature; become stimulated
d. undergo clonal selection; differentiate from hematopoietic stem cells
e. die; are phagocytosed after death
Please give a short explanation about suspension, colloids, and, solutions.
Answer:
A suspension is a mixture containing small insoluble particles evenly distributed in a fluid but a colloid is a non uniform mixture of a solute and a solvent in which the particles are permanently suspended also a solution is a uniform mixture of a solute and a solvent
Which phrases apply to metamorphic rocks? Check all that apply.
Oform under extreme heat and pressure
form from existing rocks
Oform from magma and lava
Oform when sediments combine
Oform from volcanic eruptions
Answer:
Oform under extreme heat and pressure form from existing rocks
Oform when sediments combine
Oform from volcanic eruptions
Explanation:
Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors. Conditions like these are found deep within the Earth or where tectonic plates meet.Sedimentary rock may be broken down into sediment once again by weathering and erosion. It may also form another type of rock. If it becomes buried deep enough within the crust to be subjected to increased temperature and pressure, it may change into metamorphic rock.
Answer:
from under extreme heat and pressure, form from existing rocks
Explanation:
thats just the correct answers
You are observing an organism under the microscope and you note that it has a cell wall, no chloroplasts, and a nucleus. your prediction would be that this organism is a(n) ______.
Answer:
Observing an organism under the microscope which has a cell wall, no chloroplasts, and a nucleus. your prediction would be that this organism is a(n) fungus.
Explanation:
Each species of the eukaryotic category of organisms, which also covers the more well-known mushrooms and microbes like yeast and mold, is referred to as fungi. Apart from the different other eukaryotic kingdoms, which according to one classification contain Plantae, Animalia, Protozoa, as well as Chromista, these species are categorized as a kingdom.
Chitin in their cell walls distinguishes fungi mostly from plants, bacteria, as well as certain protists, putting them in a unique kingdom. Like mammals, fungi consume dissolved substances by absorbing them; normally, they do this by releasing digestive enzymes towards their surroundings. The majority of fungi are not toxic, however some of them can be. There are two types of fungal infections: primary and parasitic. Systemic infections are ones that spread throughout the body, whereas localized infectingifons are diseases that only affect one location.
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How do the upper layers receive nourishment if epithelial tissues are not vascular?
The avascularity of epithelial tissues is almost complete. For example, no blood arteries may get through the basement membrane to enter the tissue, therefore nutrients must be absorbed or diffused from the surface or underlying tissues.
What is Epithelial tissue ?The epithelium is a type of body tissue that covers all of the internal and exterior body surfaces, lines hollow organs and body cavities, and makes up the majority of glandular tissue.
Epithelial tissue has three main purposes: acting as a barrier of protection, secreting chemicals, and absorbing substances. The primary function of particular tissues varies depending on the location and cell type. Goblet cells and stratified epithelium commonly form protective barriers.Simple squamous, simple cuboidal, simple columnar, and simple pseudostratified are the four main classes of simple epithelium.Learn more about Epithelial tissue here:
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A protein that increases the transcription of a gene in response to a specific environmental stimulus best exemplifies which type of protein function?
The function of this protein is to regulate the internal environment when it experiences the external stimulus.
What molecules increase the transcription of a gene in response to an external stimulus?Activators are the type of proteins that increase the transcription of a gene in response to an external stimulus. We can also say that an activator turn on a gene while on the other hand, Inducers are the small molecules that either activate or repress the process of transcription protein that depends on the needs of the cell and the availability of substrate.
So we can conclude that the function of this protein is to regulate the internal environment when it experiences the external stimulus.
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Select the correct answer.
In a lab, a group of students measured the temperature at which various substances boiled. Their results are listed in the table.
Accepted Value (°C) Measurement in Lab (°C)
seawater 100.7 101.8
mercury 359.6 370.0
jet fuel 163.0 165.9
ethanol (alcohol) 78.4 81.8
Which measurement has the highest percent error?
seawater
mercury
jet fuel
ethanol
ethanol has maximum 4.3% error in the sample
Equation for percent error = (Measurement value - accepted value)/accepted value x100
for seawater :
Accepted Value 100.7 101.8
percent error = 101.8-100.7 ÷ 100.7 × 100
= 1.09%
for mercury :
Accepted Value 359.6 Measurement value 370.0
percent error = 370.0 - 359.6 ÷ 359.6 × 100
= 2.89%
for jet fuel :
Accepted Value 163.0 Measurement value 165.9
percent error = 165.9 - 163.0 ÷ 163.0 × 100
= 1.77%
for ethanol (alcohol) :
Accepted Value 78.4 Measurement value 81.8
percent error = 81.8 - 78.4 ÷ 78.4 × 100
= 4.3%
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In a sensory pathway, which neurons run from the thalamus to the sensory cerebral cortex?
In a sensory pathway, third-order neurons run from the thalamus to the sensory cerebral cortex.
Thalamus is a gray matter located in the center of the brain. It is the main center for the processing of all the signals that are transmitted to the different parts of the body. However, the thalamus does not control the signals in response to smell.
The cerebral cortex is the outermost layer of the brain. It is responsible for the processing of functions like language, thinking, reasoning, decision-making, etc. There are three functional areas: motor areas, sensory areas, and association areas.
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Tetracycline is an antibiotic that works by binding to the 30s subunit of bacterial ribosomes, thus inhibiting protein synthesis. this drug is able to cross the cell membrane because:_____
Tetracycline is an antibiotic that works by binding to the 30s subunit of bacterial ribosomes, thus inhibiting protein synthesis. This drug is able to cross the cell membrane because as a weak base, it can cross the membrane in its uncharged form.
Tetracycline, an antibiotic, inhibits protein synthesis in what way?Tetracyclines prohibit aminoacyl-tRNA from joining the bacterial ribosome, hence inhibiting the production of bacterial proteins. Therefore, depending on whether the vulnerable organism is a gram positive or gram negative, these molecules must pass through one or more membrane systems in order to engage with their targets. Tetracyclines travel via the OmpF and OmpC porin channels of gram-negative enteric bacteria as positively charged cation-tetracycline coordination complexes, most likely magnesium. The Donnan potential draws the cationic metal ion-antibiotic complex across the outer membrane, causing it to accumulate in the periplasm. There, the metal ion-tetracycline complex is likely to dissociate to release uncharged tetracycline, a weakly lipophilic molecule that can diffuse through the lipid bilayer regions of the inner (cytoplasmic) membrane.Learn more about the Tetracycline with the help of the given link:
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