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mash [69]
2 years ago
7

What prevents cyclosis from happening in a plant cell?

Biology
1 answer:
stepan [7]2 years ago
7 0

Answer:

In plant cells, cytoplasmic streaming enables chloroplasts to move around enabling them to maximize light absorption necessary for photosynthetic activity.

You might be interested in
Which is NOT a characteristic of a plant? multicellular eukaryotes have chloroplasts mobility
murzikaleks [220]
<span>Among all choices, mobility is not a characteristic of a plant. Plants are multicellular organisms. They have organelles inside their cells and thus they are eukaryotes. Chloroplasts are organelles that are found in plant cells and they have an important role in the process of photosynthesis. However, plants cannot move from place from place like animals.</span>
3 0
3 years ago
Which of the following is true of the blood-brain barrier? a. The barrier is formed by cells that line the capillaries of the br
grin007 [14]

Answer:

The barrier functions to regulate the chemical composition of the extracellular fluid surrounding the brain cells.

Explanation:

Blood-brain barrier

It is a very selective semipermeable membrane , hence allow some specific substance to pass via it . This barrier separates the  extracellular fluid in the central nervous system  and the circulating blood from the brain .

<u>The barrier is composed of the endothelial cells .</u>

Passive diffusion is shown in this system , and allows molecules like the water , glucose , amino acid to pass .

It regulates the chemical composition of the fluid of brain cell .

6 0
3 years ago
Explain how valves help the transport of blood in veins.
pychu [463]

Answer:

The valves' main job is to keep the blood moving in one direction – back up towards the heart. When the valve is open, blood freely flows upward towards the heart and when the valves are closed, blood cannot flow back

4 0
3 years ago
What organelle is responsible for the process of photosynthesis?
PtichkaEL [24]
That would be the chloroplasts. They are small cells in a leaf that store chlorophyll.
6 0
3 years ago
Dipeptide, polipeptide
Liula [17]

Polypeptide:
A chain of amino acids linked together by peptide bonds and having a molecular weight of up to about 10,000.

Dipeptide:

A peptide that yields two amino acids on hydrolysis.

6 0
1 year ago
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