1. Why do the receptor proteins need to be on the outside of the cell?

1 answer:

7 0

1) receptor proteins need to b on the outside of a cell so the cell can absorb the nutrients it needs. receptors have a specific job, membranes are semi-permeable meaning it doesn't absorb nutrients that are not needed 4 a cell to function in a healthy individual.

2) water and glucose are what most cells need to produce energy to function and produce ATP, which allows the bloodstream to deliver nutrients to the entire body.

You might be interested in

Eutrophication of an aquatic ecosystem would most likely have which of the following effects?

PilotLPTM [1.2K]

It would cause a decrease in dissolved oxygen.

3 0

3 years ago

Read 2 more answers

49. An organized attempt to influence the decisions of lawmakers is called

goblinko [34]

Answer:

lobbying

Explanation:

3 0

3 years ago

Read 2 more answers

how do the strategically placed covalent and hydrogen bonds present in dna facilitate the functioning of the molecule

Sergio [31]

<h3>Answer and explanation;</h3>

DNA is a double stranded molecule. Covalent and hydrogen bonds pray important roles in the functioning of DNA molecules.
Covalent bonds occur within each linear strand and strongly bond the nucleotide bases, sugars, and phosphate groups occurring both within each component and between components.
Hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complementary pairing.
Hydrogen bonds helps the complementary base pairs in DNA; guanine with cytosine and adenine with thymine to connect to one another. The hydrogen bonds between these complementary pairs helps keep the two strands of DNA helix together.

6 0

3 years ago

Name the blood vessels which supplies blood to the liver.

BigorU [14]

The liver receives the oxygen and nutrients it needs in blood that comes from two large blood vessels:

Portal vein.

Hepatic artery.

The liver is connected to two large blood vessels, the hepatic artery and the portal vein. The hepatic artery carries blood from the aorta to the liver, whereas the portal vein carries blood containing the digested nutrients from the entire gastrointestinal tract, and also from the spleen and pancreas to the liver.

3 0

3 years ago

Read 2 more answers

According to the fossil record found in these sedimentary layers, what conclusion can be drawn about the movement of life to lan

timofeeve [1]

The correct answer is: B) As land plants became more complex, animal life did as well.

This is because land could not be colonized by other organisms such as animals until land plants became established-there was nothing for animals to feed on.

So, plants were one of the earliest organisms to leave the water and colonize land.

6 0

3 years ago

Read 2 more answers