which type of channels are found in axons of all types of neurons that open in response to change in membrane potential?
Answers
The relative concentrations of different ions inside and outside the cell are regulated by voltage-gated ion channels.
The membrane potential is the total charge differential between the cell's inside and exterior. Changes in the membrane voltage cause voltage-gated ion channels to open.
Charged molecules or ions cannot pass through the lipid bilayer membrane that encloses a neuron. Ions must traverse unique proteins known as ion channels that span the membrane in order to enter or exit the neuron. Ion channels can be inactive, closed, or any combination of these states, as seen in In order for some ion channels to open and let ions enter or exit the cell, they must first be activated. These ion channels can alter their form in response to environmental changes. Voltage-gated ion channels are ion channels that alter their shape in response to voltage changes.
Learn more about " concentrations " to visit here;
https://brainly.com/question/10725862
#SPJ4
Related Questions
What is division of labour in multicellular organisms?
Answers
hello,
here is your answer:
**********
Multicellular organisms are made up of millions of cells. These cells are divided into separate groups. Each group performs a specific function. Since these cells carry out only a particular function, they do it efficiently.
**********
hope this helped,
:)
If the researcher in the passage is correct about increased albumin concentration in the interstitial fluid of the brain following focal ischemia, which of the following interactions would most likely be affected?
A.Astrocytes and blood vessels
B.Schwann cells and axons
C.Microglia and lymphocytes
D.Ependyma and cerebrospinal fluid
Answers
The answer is A. strocytes and blood vessels.
Focal ischemia is obstruction of blood circulation in the arteries of the midbrain due to thrombus accumulation, which allows reperfusion to occur which can lead to stroke. When ischemia occurs the concentration of albumin in the blood will decrease when systemic inflammation occurs so that it will affect cell nutrition and immunity.
Increasing the concentration of albumin in the blood with proper nutrition can restore nutrition and post-ischemia cell immunity thereby increasing circulation in blood vessels and strocytes. Strocytes which are the main cells of the central nervous system itself can play a role in immune regulation will contribute to blood in the brain. Administration of albumin after ischemia can help functional recovery or mortality in patients.
Learn more about strocytes at:
https://brainly.com/question/15576483
#SPJ4
PLEASE HELP ASAP PLEASE
1. Write the part of the brain that performs each of the functions shown below.
Regulates sleep
Connects brain and eyes
Pleasure center
Controls balance
Controls thinking
Controls breathing and heart rate
Answers
Regulates sleep: The hypothalamus; Connects brain and eyes; The optic nerve; Pleasure center; The nucleus accumbens; Controls balance: The cerebellum; Controls thinking: The prefrontal cortex; Controls breathing and heart rate: The brainstem.
Parts of the brain and their functionsThe part of the brain that performs each of the functions mentioned is as follows:
Regulates sleep: The hypothalamus, particularly the suprachiasmatic nucleus, plays a key role in regulating sleep-wake cycles.
Connects brain and eyes: The optic nerve connects the brain with the eyes, transmitting visual information.
Pleasure center: The nucleus accumbens, located in the basal forebrain, is associated with the experience of pleasure and reward.
Controls balance: The cerebellum, located at the back of the brain, is primarily responsible for coordinating balance and coordinating voluntary movements.
Controls thinking: The prefrontal cortex, located at the front of the brain, is involved in higher-level cognitive functions, including decision-making, problem-solving, and abstract thinking.
Controls breathing and heart rate: The brainstem, particularly the medulla oblongata, controls vital functions such as breathing and heart rate.
More on the brain can be found here: https://brainly.com/question/11950231
#SPJ1
One of the largest and oldest organisms on earth is located in fish lake and nation, forest, in utah.pando is an 80,000 year old grove of aspen trees that cover 100 acres. Although it looks like a forest, DNA analysis of several of the trees has confirmed it is really just one huge organism. Therefore the trees must have been reproduced
Answers
Pando aspen grove in Utah is an immense, genetically identical organism consisting of interconnected aspen trees spanning 100 acres and estimated to be around 80,000 years old.
One of the largest and oldest organisms on Earth, known as Pando, is located in Fish Lake National Forest in Utah. Pando aspen grove is an 80,000-year-old grove of aspen trees that covers approximately 100 acres. While it appears to be a forest, DNA analysis of several of the trees has revealed that they are genetically identical, confirming that Pando is actually one immense organism. The trees of Pando have been reproduced through a process called vegetative reproduction, where new shoots and stems emerge from the existing root system. This unique reproductive strategy has allowed Pando to persist and expand over thousands of years, making it a remarkable example of the interconnectedness and longevity of living organisms.For more questions on Pando aspen grove:
https://brainly.com/question/29601096
#SPJ8
I just don’t know the last system
Answers
Answer:
The Endocrine System
Explanation:
Because a hormonal mechanism is created by the kidneys for the maintenance of blood pressure by stabilizing blood volume.
On the periodic table, electronegativity increases as we move from the left column to the right. What information does this give us?
A) Nitrogen is more likely than oxygen to form a chemical bond
B) Hydrogen and helium are equally likely to form a chemical bond
C) Fluorine and neon are equally likely to form a chemical bond
D) Oxygen is more likely than nitrogen to form a chemical bond
Answers
Answer:
I think answer a hope it is helpful
Scientists have determined that the codes for amino acids are?
a) different in bacteria and viruses.
b) different in humans and bacteria.
c) universal.
d) never the same.
Answers
Answer:I
I think its B
Explanation:
Four contributing factors that may lead to an increase in number of learners abusing substance in school premises
Answers
Factors contributing to increased substance abuse among learners in school: peer pressure, stress/mental health issues, substance accessibility, and lack of education/awareness. These factors influence learners to engage in substance abuse on school premises.
Peer pressure is a common influence in schools, where students may feel pressured to fit in or conform to social norms, including substance use. High levels of stress and mental health issues can lead learners to seek solace or escape through substance abuse. If substances are easily accessible within the school environment, learners may be tempted to experiment or engage in substance use. Lastly, the lack of education and awareness about the risks of substance abuse leaves learners uninformed about the potential consequences, making them more vulnerable to its allure. Addressing these factors is crucial in developing effective prevention strategies.
Learn more about Factors contributing here:
https://brainly.com/question/14274675
#SPJ11
Punnett Squares can predict the ___________ of human genetic traits, especially useful for genetic disorders.
genotypes
inheretance
phenotypes
Answers
Answer:
The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. The diagram is used by biologists to determine the probability of an offspring having a particular genotype.
Explanation:
Answer:genotypes
Explanation:
If the DNA template has the following sequence, what would the complementary RNA strand be?
DNA template: GATTACACATTACGTGTA
RNA strand:_____
Answers
Answer:
CUAAUGUGUAAUGCACAU
Explanation:
If the conservative model had been correct, how many generations of bacterial cell division would have had to pass before meselson and stahl would have observed evidence of a band in the cscl gradient corresponding to a hybrid dna molecule containing both 14n and 15n?.
Answers
If the conservative model had been correct, No generations; a hybrid would never form had to pass before meselson and stahl would have observed evidence of a band in the cscl gradient corresponding to a hybrid dna molecule containing both 14n and 15n.
What is the Meselson and Stahl experiment about?
The Meselson and Stahl experiment is an experiment in 1958 by Matthew Meselson and Franklin Stahl. Meselson and Stahl through their experiment demonstrated that DNA replicated semi-conservatively, meaning that each strand in a DNA molecule serves as a template for synthesis of a new, complementary strand
Here's the complete question:
If the conservative model had been correct, how many generations of bacterial cell division would have had to pass before Meselson and Stahl would have observed evidence of a band in the CsCl gradient corresponding to a hybrid DNA molecule containing both 14N and 15N?
A) 1 generation
B) 4 generations
C) More than 10 generations
D) No generations; a hybrid would never form.
Learn more about Meselson and Stahl experiment from:
https://brainly.com/question/14803355?referrer=searchResults
#SPJ4
g Why is an alteration of electrophoretic mobility interpreted as a change in the primary structure of the protein under study
Answers
An alteration in electrophoretic mobility, which refers to the movement of charged particles in an electric field, is interpreted as a change in the primary structure of the protein under study because the mobility of a protein is directly related to its charge and size.
The primary structure of a protein is determined by the sequence of amino acids, which influences the protein's charge and size. Any changes in the amino acid sequence will affect the protein's charge and size, thereby affecting its electrophoretic mobility. Therefore, a change in electrophoretic mobility can suggest a change in the primary structure of the protein. This is important because changes in the primary structure can have significant implications for the protein's function, stability, and interactions with other molecules. Overall, analyzing changes in electrophoretic mobility is a useful tool for studying protein structure and function.
Learn more about protein here:
https://brainly.com/question/29776206
#SPJ11
what traits do viruses share with living things?
Answers
Answer: Viruses are infectious agents with both living and nonliving characteristics. Living characteristics of viruses include the ability to reproduce – but only in living host cells – and the ability to mutate.
Explanation:
googles word not mines, but put it in your own.
the movement of individuals or gametes away from their areas of origin or from centers of high population density is called .
Answers
The movement of individuals or gametes away from their areas of origin or from centers of high population density is called dispersal.
Dispersal can occur through various means such as migration, seed dispersal, or spore dispersal. It is an important process that allows for the colonization of new habitats, gene flow between populations, and the avoidance of inbreeding. The mechanisms and drivers of dispersal can vary depending on the species and their ecological context, and can be influenced by factors such as environmental conditions, competition, and predation pressure.
The movement of individuals or gametes away from their areas of origin or from centers of high population density is called dispersal. In a concise explanation:
1. Dispersal refers to the movement of organisms, including individuals or their reproductive units (gametes), from their birthplace or centers of high population density.
2. This movement can occur through various means, such as wind, water, or animal carriers.
3. Dispersal helps to decrease competition for resources, reduce the risk of inbreeding, and promote gene flow among populations.
4. Overall, dispersal contributes to the survival, reproduction, and genetic diversity of a species.
To know more about gametes, refer
https://brainly.com/question/7648924
#SPJ11
Two of the hormones secreted by the pancreas are insulin and glucagon. These hormones work together to maintain a balanced blood sugar level. How do they do that?
Answers
Insulin and Glucagon work in what’s called a negative feedback loop.
During this process, one event triggers another, which triggers another, and it keeps going, to keep your blood sugar levels balanced.
I hope this answers your question :)
who were the neurosurgeons who performed the first major series of commissurotomies for the treatment of intractable epilepsy?
Answers
A neurosurgeon is a medical professional who focuses on the surgical diagnosis and treatment of conditions affecting the central and peripheral nervous systems, such as congenital anomalies, trauma, tumors, vascular issues, infections of the brain or spine, strokes, or degenerative diseases of the spine.
There is a misconception that neurosurgeons only practice surgery. They actually have a ton of other duties. It can be challenging to anticipate all that will be covered during a consultation with a neurosurgeon.
As some of the most skilled and knowledgeable medical specialists, neurosurgeons spend a lot of time discussing unique cases with other physicians. They also have a list of their own cases, all of which present different difficulties. Although many of these patients will probably require surgery, not all of them will.
To know more about neurosurgeon :-
https://brainly.com/question/14218900
#SPJ4
4. Why
are stomata important to a plant?
Answers
Answer:
stamina are important portals for gas and water exchange in plants and have a strong influence on characteristics associated with photosynthesis and transpiration
Answer:
Stomata are composed of a pair of specialized epidermal cells referred to as guard cells (Figure 3). Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore.
Explanation:
Stomata are composed of a pair of specialized epidermal cells referred to as guard cells (Figure 3). Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore.
Igneous rocks form from ____ when it cools.
Answers
Answer:
pretty sure it's magna
Explanation:
tell me if I'm wrong I hope you get a good grade (
✿^‿^)
Answer:
a)magmabecause the magma cools and rocks form
After Frida stops exercising, she continues to breathe heavily. What is most likely occurring in her body?
a. Heavy breathing during exercise has produced an oxygen surplus in her muscles. This oxygen is being transported to her lungs. This is a result of aerobic respiration.
b. Heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. Lactate is being transported to her liver. This is a result of aerobic respiration.
c. Strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. This is a result of anaerobic respiration.
d. Strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. This is a result of anaerobic respiration.
Answers
Answer:
D. Strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. This is a result of anaerobic respiration.
Explanation:
Please Mark me brainliest
what process during the transcription step of protein synthesis
Answers
RNA polymerase (green), an enzyme involved in transcription, creates pre-mRNA by using DNA as a template (pink). Pre-mRNA undergoes processing to create a mature mRNA molecule that can be translated to create the protein molecule.
Polypeptide that the original gene intended. A promoter sequence at the start of a gene is where transcription starts when RNA polymerase binds to it (directly or through helper proteins). A new, complementary RNA molecule is created by RNA polymerase using the template strand of one of the DNA strands as a model.
A procedure known as termination marks the end of transcription. Beginning, continuing, and ending are the three phases of transcription. After transcription, RNA molecules in eukaryotes must undergo synthesis processing, which includes splicing, adding a 5' cap and a poly-A tail to either end, and other steps.
Learn more about protein synthesis Visit: brainly.com/question/13022587
#SPJ4
Correct Question:
What is the process of transcription in protein synthesis?
Why does mainland europe have a wider variety of plant life than the british isles?.
Answers
Answer:
Climateon
Explanation:
The climateon the mainland of Europe is more diverse than that of the British Isles and supports a wider range of plant life.
What are the functions of guard cells?
Answers
Guard cells control the opening and closing of the stomata in plant cells.
WHAT ARE GUARD CELLS:Guard cells are structures that surrounds the stomata of plant cells and regulates the opening and closing of the stomata. The stomata, which are located on the leaves of plants opens in order for the plant to perform gaseous exchange i.e. intake of CO2 and release of O2.Therefore, Guard cells function to control the opening and closing of the stomata in plant cells.
Learn more about guard cells at: https://brainly.com/question/8812601
draw/identify several alternative mature mrnas if given a drawing of a primary transcript. know the name of the process that produces different mature transcripts from a starting immature rna.
Answers
The process that produces different mature transcripts from a starting immature RNA is called alternative splicing.
What is the process?The process is given as;
Transcription: The DNA sequence of a gene is transcribed into a primary RNA transcript (pre-mRNA) by RNA polymerase.
Pre-mRNA processing: The pre-mRNA undergoes several processing steps, including capping, polyadenylation, and splicing, to produce a mature mRNA molecule.
Splicing: During splicing, introns (non-coding regions) are removed, and exons (coding regions) are joined together to form a continuous coding sequence. However, alternative splicing allows for different combinations of exons to be included or excluded in the mature mRNA.
Learn more about mRNA:https://brainly.com/question/29316969
#SPJ4
The process of producing different mature transcripts from a starting immature RNA is called alternative splicing.
What is alternative splicing?Alternative splicing is a common process in eukaryotes, and it allows for the production of a large number of different proteins from a relatively small number of genes.
To draw/identify several alternative mature mRNAs if given a drawing of a primary transcript, you would first need to identify the exons and introns in the primary transcript.
Exons are the coding regions of the transcript, while introns are the non-coding regions. Once you have identified the exons and introns, you can then draw the different mature mRNAs by splicing together different combinations of exons.
Find out more on immature RNA here: https://brainly.com/question/15083792
#SPJ4
Which of the following is NOT true of proteins?
a. they form muscle, skin and hair
b. they are found in food
c. they are a main source of energy
d. they are sensitive to pH and temperature
Answers
(Will give brainliest if correct and no links) Based on the image in figure 2, would the creation of one type of kidney cell be sufficient in forming a functioning kidney? Explain why?
Answers
Answer:
Yes.
Explanation:
The creation of one type of kidney cell will be sufficient in forming a functioning kidney because one type of cells allow the kidney to perform its one function i.e. filtering of blood. Epithelial stem cells are the cells that is responsible for the function of a kidney. The kidneys have only epithelial stem cells which performs only one function which removing water material, excess salts and water from the body. so we can say that one type of kidney cell is sufficient for the functioning of kidney.
What effect does raising the temperature have on a catalase? How do you know?
Answers
Answer: Catalase activity increases as the temperature goes from 0'C to around 30'C. Catalase activity decreases as temperature goes from around 30'C to 100'C.
Explanation:
Catalase is work at 0'C to around 30'C temperature and its activity is decreased from above 30'C to 100'c.
How does temperature affect enzyme activity?Every organism needs to survive at optimum temperature and pH, because its critical enzymes are showing activity at a particular range, above and below this range, enzymes lost their activity.
Catalase enzyme is used for the decomposition of hydrogen peroxide into water and oxygen. It is commonly found in nearly all organisms that are exposed to oxygen.
Therefore, an optimum temperature is required for an enzyme to show its activity, so catalase is work at 0'C to around 30'C.
Learn more about enzymes, here:
https://brainly.com/question/13795288
#SPJ1
Pathways that transmit sensory impulses are also called ______ pathways because the information travels from sensory receptors superiorly through the spinal cord to the brain.
Answers
Answer:
Ascending pathway
Explanation:
Sensory pathways are ascending pathways
Which of the following is not a part of the nephron?
a) Nephric tubule
b) Ureters
c) Bowman's Capsule
d) Both A & C
Answers
Answer:
ureters
Explanation:
the ureter is part of the urinary system/excretory system
If there is a 1-degree change, coral reefs will become______?
Answers
Answer:
warmer
Explanation:
Practice: Photosynthesis Visual Summary
Label the two parts of the chloroplast.
Label where each step of photosynthesis occurs. Use arrows to show what goes into each part (reactants) and what comes out (products).
Answers
Photosynthesis takes place in the chloroplast. It involves light-dependent reactions -electron transporter chain- that occur in the thylakoid membrane, and light-independent reactions in the stroma - Calvin cycle-.
---------------------------------
Let us first describe the structures that compose the chloroplast.
In the image, we can see the outer and inner membrane of the organelle.Between the external and internal membranes, we can see the intermembrane space.The space surrounded by the inner membrane is the stroma.The structures found in the stroma are the thylakoids, arranged in piles known as grana.Thylakoids are also surrounded by a membrane.The interior of thylakoids is the thylakoid space.
Now, let us talk about photosynthesis
Photosynthesis involves two stages: light-dependent and light-independent reactions.
Light-dependent reactions refer to the non-cyclin pathway –electron transporter chain- that takes place in the thylakoid membrane.During light-dependent reactions, oxygen is released, while ATP and NADPH are produced. Both of them are used during light-independent reactions.Light-independent reaction is known as the Calvin cycle, and it takes place in the stroma.During the Calvin cycle, sugars or carbohydrates are synthesized.When carbón dioxide, CO₂, enters the leaves through stomas, it diffuses to the chloroplast stroma.Carbon atoms fixate, meaning that they incorporate into organic molecules. These molecules are used to produce 3-C sugars.The whole process is impulsed by ATP and NADPH coming from light-dependent reactions.In the attached files you will see one image showing the structures of the chloroplast and a second image showing the movement of molecules.
-----------------------
Learn more about photosyntesis at the following link:
https://brainly.com/question/774815?referrer=searchResults
https://brainly.com/question/17632381?referrer=searchResults
