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kykrilka [37]
3 years ago
12

process requiring energy for the movement of particles across a cell membrane across against the concentration gradient

Biology
2 answers:
notka56 [123]3 years ago
5 0

Answer:

Active Transport

Explanation:

natta225 [31]3 years ago
3 0
This process is active transport.

Unlike other methods such as diffusion or osmosis, active transport requires extra energy provided by the organism from such as cellular respiration. In addition, they also require a carrier protein, which can change its shape to bring the substance through the cell membrane.

Some examples requiring active transport may include root hair cells absorbing mineral ions, or our small intestine absorbing digested nutrients into our body.
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Sergio [31]

This is an example of Precursor gene regulation (protein translation) type of eukaryotic gene regulation.

<u>Explanation:</u>

The source which breakdown proteins into smaller amino acid is pepsin and generated as top cells within stomach lining or membrane, responsible for pepsinogen emission inside stomach. It is represented as zymogen having an extra 44 amino acids linkage as its primary structure. Hydrochloric acid (HCl) releases this zymogen which is emitted from the parietal cells in the stomach lining.

Once food is consumed, the hormone gastrine and the vagus nerve cause the secretion of both pepsinogen and HCl from the stomach lining. Hydrochloric acid induces an acidic environment that allows pepsinogen to unfold in an autocatalytic manner and thus generates pepsin the active form.

4 0
3 years ago
44. Which of the following choices is NOT a major component of vascular plant leaf anatomy?
Aliun [14]

Answer:

The correct answer is option d. "Elastic channels".

Explanation:

The vascular plants uses xylem and phloem cells that carry water and nutrients to all the parts of the plant, which are present in the leaves of the plant. Stomata is part of the vascular system of a plant, but it serves for gas exchange instead of water and nutrients exchange. Palisade mesophyll is a structural component that contains columnar cells with spaces between them, located in the leaves of vascular plants as well. A component that is not part of the vascular plant leaf anatomy are the elastic channels.

5 0
3 years ago
Name to types of evidence that scientist used to support the theory of evolution?
Sergio [31]
Evidence of evolution. Scientists support the evidence of evolution because of the adaptations organisms used to have in the past compared to the present. For example, humans have organs in their bodies they don't need, but must have been used in ancient times. They can also find that humans have a common ancestor such as monkeys because of the DNA similarities and many adaptations. Hopefully this answered most of your question.
8 0
3 years ago
The majority of the cell membrane is made from _________________________ and has ______________ layers.
Alja [10]

Answer:

The majority of the cell membrane is made from phospholipids and has 2 layers

3 0
4 years ago
The characteristics of all organisms and viruses are determined by the instructions carried in
Hatshy [7]

Answer:

DNA

Explanation:

maybe... BUT PROBABLY YESS

6 0
3 years ago
Read 2 more answers
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