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Sauron [17]
3 years ago
8

A researcher is trying to create an artificial, eukaryotic cell-like membrane within the laboratory. She wants this membrane to

be able to resist osmotic pressure. If she wants the membrane to have this trait, what should she make sure is a component of her artificial membrane?
Biology
1 answer:
Artyom0805 [142]3 years ago
3 0

Answer:

The correct answer is - cholesterol.

Explanation:

Osmotic pressure is the pressure that is applied to a solvent without any solute particle to prevent it from entering inward into a specific solution by the process of the osmosis.

In a cell to prevent osmosis or resistance to the osmotic pressure a cell membrane need to be have cholesterol as it is hydrophobic in nature and most of the solution have water as solvent.

Thus, the correct answer is - cholesterol.

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Rhodobacter cells perform photosynthesis in the presence of light and grow heterotrophically in the dark. After being cultured i
Marrrta [24]

Answer:

Phenotypic changes:

When Rhodobacter is cultured in total darkness for multiple generations, the ability to produce it's own photopigment reduces with time with little or no ability to undergo its own photosynthesis due to absence of enzymes or pigment for photosynthesis.

It becomes expensive for the Rhodobacter to undergo photosynthesis. This allows mutants that can grow in the dark to take over from the culture grown in the dark.

Evolutionary processes:

It's natural selection that allows the fittest organism to survive. As in the case of the mutants

5 0
3 years ago
A biologist at a highly prestigious biology conference presented an informative speech on how DNA in genetics works. All audienc
Arada [10]

The question is incomplete as it does not have the options which are:

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Answer:

A. novelty

Explanation:

Novelty refers to a qualitative identity that is used to represent the new ideal things or some fresh and refreshing ideas.

In the given question, the person who was presenting about the idea of How DNA works in genetics? failed to present something new about the DNA and just presented what was already known to the audience.

Since the presenter failed to express the new ideas in his presentation about the DNA that is no novel ideas were presented therefore the audience started to leave the presentation.

Thus, Option-A is correct.

3 0
3 years ago
How might an increase in temperature affect the enzyme's function in the cell?
ahrayia [7]
Increasing the temperature might cause proteins within an enzyme to denature. This will cause the enzyme to stop working properly. 
3 0
2 years ago
B) Write a hypothesis explaining the reason for the difference in bill length among
mrs_skeptik [129]

Answer:

I think that birds have different bill lengths because of their habitats and their diet. Also natural selection and evolution has also played a factor due to the fact that birds have not always looked the way that they do now, for example the Archaeopteryx a  bird that lived around the time of the dinosaurs had a shorter and more powerful bill to grind insects and small mammals

Explanation:

6 0
2 years ago
1. What is most likely to cause a mutation?
Tems11 [23]
Answer :

Choice A i think
8 0
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