Active transport performs which function in a cell?

Biology

2 answers:

uysha [10]4 years ago

6 0

Answer:

Moves substances against a concentration gradient.(Ans. C)

Explanation:

Active transport is defined as movements of molecules against a concentration gradient across a membrane from lower concentration to higher concentration, which requires the cell energy harvested from the ATP which is obtained from cellular metabolism.

Such metal ions include Mg+, K+, Ca+, Na+ these are transported across the cell membrane via active transport. These metal ions cross the cell membrane with the help of ion channels and pumps.

Primary active transport uses adenosine triphosphate and secondary active transport uses electrochemical gradient as an energy source.

aleksklad [387]4 years ago

4 0

Its C, as in active transport the substance tends to move from a reigon of high concentration to a reigon of lower concentration, against the concentration gradient. for example: mineral salts from soil move by active transport to the root hair cell.
D is not the answer as water always moves by the process of osmosis.
i hope that helped (:

You might be interested in

Which of the following statements about the Australian koala is true? The animal can only live in Australia. Its habitat can var

Alexeev081 [22]

"Its habitat can vary somewhat if it is <span> supplied with eucalyptus</span>" is a true statement regarding the Australian Koala. This is how these animals are able to live in zoos outside Australia.

7 0

4 years ago

Read 2 more answers

8. What would happen to the amino acid sequence if you changed the order of the

Anni [7]

Answer:

If the specific sequence of nitrogenous bases in DNA is changed, this will in turn change the sequence of nitrogenous bases in the mRNA (after transcription). During the process of translation, different amino acids will be incorporated in a different sequence due to the different mRNA codons in the mRNA strand. This would most likely result in a non-functional protein or a different protein with other chemical properties than the one specified in the original DNA sequence.