BIOLOGY HIGH SCHOOL

Identify the correct statement about the resting membrane potential of a cell. Group of answer choices a) Concentration gradients of potassium (K+) and sodium (Na+) across the plasma membrane represent kinetic energy.
b) Potassium (K+) concentration is higher outside the cell, and sodium (Na+) concentration is higher inside the cell.
c) Potassium (K+) and sodium (Na+) gradients are maintained by active transport in a resting mammalian neuron.
d) Neurons are the only cells that have a charge difference across their membranes.

Answers

Answer 1
Answer:

Answer:C

Explanation:

Resting Membrane Potential (RMP) is the charge difference represented as voltage difference across a nueronal cell membrane at rest.

It has a value of -50 and -75mV.

Graphically it represents the flat plateau at the last part of the curve of action potential (check the attachments)

In a normal resting cell after Action potential ;for example nuerone,the intercellular layer has more potassium ions, while the extracellular layer has more Sodium ions .

These ions have special channels called sodium and potassium channels for movement in and out of these ions by active transports.

The movements of these ions across the membranes generated electrical potential difference for action potential.

Related Questions

What is the product after 1 cycle of the Calvin cycle
What is dental decay?
The loss of an organism at the bottom of a food chain negatively impacts all organisms in the chain
2. Choose a spot of soil that is nearby your home, school, or another area you frequent. If a crime were committed there, what types of materials do you think you'd find in your investigation of the soil? Do you think you would find materials that would be considered individual characteristics?
Which example best describes incomplete dominance? a) humans with blood type AB b) flowers with red petals c) horses with roan color pattern d) sheep with gray fleece

Gene therapy, which includes the correction of defective genes, is a significant part of the human genome project. Which of these is an application of the technique?A: A new protein, which can repair defective genes, is injected.
B: Mutated DNA sequences, which can pair with existing genes, are introduced.
C: The DNA sequences of the entire genomes of disease-causing microbes are compared.
D: A new gene, which codes for the protein that can repair defective genes, is introduced.

Answers

The correct answer for the question that is being presented above is this one: "D: A new gene, which codes for the protein that can repair defective genes, is introduced." Gene therapy, which includes the correction of defective genes, is a significant part of the human genome project. Among the following choices, A new gene, which codes for the protein that can repair defective genes, is introduced is an application of the technique.

D: A new gene, which codes for the protein that can repair defective genes, is introduced.

What do the bullhorn acacia
trees get from the acacia
ants?

Answers

Final answer:

The bullhorn acacia trees have a mutualistic relationship with the acacia ants, where the ants protect the trees and in return, the trees provide shelter and food for the ants.

Explanation:

Bullhorn acacia trees have a mutualistic relationship with acacia ants. The ants protect the trees from herbivores and other plants that may compete for resources. In return, the trees provide shelter and food for the ants.

The bullhorn acacia tree has specialized structures called Beltian bodies, which are rich in nutrients. These structures are produced by the tree and are specifically meant to be consumed by the ants. The ants also benefit by feeding off nectar produced by the tree's extrafloral nectaries.

Overall, the ants receive food and shelter, while the tree benefits from protection against herbivores and the ability to outcompete nearby plants.

Learn more about bullhorn acacia trees and acacia ants here:

brainly.com/question/15417839

#SPJ12

Answer:

The plants provide food and accommodation in the form of food bodies and nectar as well as hollow thorns which can be used as nests. The ants return this favor by protecting the plants against herbivores

Explanation:

Suppose that a large river separates two populations of mice. one population is all black, and the other all white. a beaver dam that is built allows the mice to cross the river. over time, many gray mice are born. what is this an example of?

Answers

In this case two kinds of selection might be applicable to this situation. For example, if the population of grey mice are more exposed to predators due some materials used in the dam then that would be an example of disruptive selection. But if the population of gray mice is less visible to predators and if the population grow, then it will be an example of Stabilizing selection. Basicaly meant, this type of situation is also known as codominancy or codominant type. 

What are the three types of fingerprints found in the human population? How often does each occur? Please help!

Answers

What is Fingerprint ?

  • The mark made by the skin of a finger, used for identifying people
  • A fingerprint is an impression left by the friction ridges of a human finger. The recovery of partial fingerprints from a crime scene is an important method of forensic science. Moisture and grease on a finger result in fingerprints on surfaces such as glass or metal.
  • It is mainly study in forensics science as branch of fingerprint science

What are the types?

  • Fingerprint mainly divided into 3 categories

1. ARCH

2. LOOP

3. WHORL

How often does each occur?

  • It occurs due to finger ridges found on the outer layer of skin.
  • Various oils and different types of liquid or sweat produced by the sebaceous layer of skin.

Learn more about Fingerprint below,

https://brainly.in/question/46755801?msp_poc_exp=1

#SPJ2
The three fingerprint classes are arches, loops, and whorls. Arches occur about 5% of the time, loops occur about 60-65% of the time, Whorls occur about 30-35% of the time.

classify each phrase as applying to the lytic cycle, the lysogenic cycle, or both types of reproductive cycles of phages.

Answers

In the lytic  cycle, a virus that has invaded and  entered a  cell takes over the cell's replication mechanism. The virus makes viral DNA and viral proteins.

The virus then lyses (breaks open) the cell membrane, allowing the newly  produced viruses to leave the now disintergrated host cell to infect  other new cells.


In a lysogenic cycle, the viral DNA or RNA enters the cell and integrates  into the host DNA as a new set of genes called prophage. The prophage is passive and non virulent and does not destroy the cell. However if the prophage undergoes any stress or mutation or is exposed to UV radiation, it may adopt the lytic cycle and become infective.

What would happen to the food that someone ate if they didnt have the digestive enzymes they needed

Answers

Answer:

The digestive system is my favorite system! Without it you would not survive. Our digestive system is how we break down food into nutrients that feed our cells and give us energy to move, talk, grow, think, reproduce, and all the other crazy things that humans do.

Although each of the parts of the digestive system has specific and important functions, shockingly, you can survive without some of the parts. For example, morbidly obese individuals can have their stomach entirely removed in a procedure called a gastric bypass. In this surgery, the small intestine is linked directly to the esophagus thus “bypassing” the stomach. You can also live without your appendix. In fact, it sometimes negatively impacts health as it can become infected (have you ever known someone who had their appendix burst?). The appendix was thought to be a “vestigial organ” meaning that at one point in evolutionary history, we humans had a need for it, but now we don’t; however, there is recent evidence that the appendix is an important hotbed for beneficial bacteria that help us digest food.

Explanation:

I hope this helps! Brainliest is always appreciated!

Answer:

They wouldn't be able to digest the food. It wouldn't break down like it's supposed to with the digestive enzymes.
Other Questions
What information can be determined by observing dark lines within the spectrum of a given star? the elements present in the star's atmosphere the elements present in the star's inner core whether planets orbit the star the approximate size of the star
In the study of cancer, researchers have used different types of cells, different environmental conditions, and different experimental designs. But, all researchers have arrived at the same conclusion. Which conclusion is that?
the digestive organs are an example of a(n) ____________ in that they are multiple, different organs working together to carry out a similar function.
What do aerobic respiration and anaerobic respiration have in common?