Cholesterol serves several essential functions in mammalian cells. Which of the following is not influenced by cholesterol?

Biology

1 answer:

svet-max [94.6K]3 years ago

6 0

The correct answer is: d. membrane thickness

Cholesterol is the second major lipid in the structure of the cell membrane (phospholipids are the major lipid components).

Cholesterol is rigid, so it gives the cell membrane extra support (strength and hardness) by immobilizing some of the lipid molecules around them. This rigidity makes it harder for small molecules to pass through the membrane, so it also has the influence on cell membrane’s permeability (the membrane becomes effective barrier to ions).

Cell membrane’s fluidity is also under the influence of the cholesterol which helps generate some extra space between the lipids allowing them to move freely throughout the membrane.

You might be interested in

Explain how wolves can be used as a biological indicator of the overall health of the ecosystem?

8090 [49]

<span>Large carnivores in general are often used as indicator species because of their seat at the top of the food chain. ... When a large carnivore is missing from an ecosystem this can reflect problems in prey populations, usually caused by larger issues such as over-harvest of game, presence of disease, or habitat changes.</span>

4 0

3 years ago

Read 2 more answers

A farmer notices that the corn in her fields is growing slowly. So she adds twice the normal amount of fertilizer to each field.

Vikentia [17]

<h2>The correct answer is: Eutrophication.</h2>

Explanation:

Fertilizers are inorganic o organic nutrients highly rich in elements like nitrogen, potassium and phosphorus which are essential for the growth of plants.
The application of excess fertilizers in the soil causes the surface run off as well as leaching of these nutrients into the soil from where it is gradually transferred into the nearby water bodies, in this case the lake adjacent to the farmer's property.
In the lake, these nutrients promotes the growth of plants like algae.
The excessive growth of algae in the lake disturbs he ecological balance of the lake and causes a dearth of oxygen in it. This phenomenon is said to be called Eutrophication.
The reduction in the level of oxygen in the lake causes the animals, like fishes, in it to gradually die.