Question

2. How do unicellular organisms respire?
3. How do plants respire?
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Answer 1

Explanation:

1.

Unicellular organisms breathe through direct diffusion via the cell membrane. As the cell membrane is semi-permiable it allows substances to move from a high concentration to a low concentration ie. oxygen diffuses in and carbondioxide diffuse out. Organisms such as amoeba and paramoecium breathe this way.

2.

plants respire through stomata present in leaves.. photosynthesis and respiration both are different. during respiration plants take in oxygen and give out carbon dioxide. they respire with the help of stomata present in leaves.

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Answer 2

ANSWER:

Of 2.

Unicellular organisms do not breathe in the typical sense, but they respirate by allowing oxygen to enter the cell membrane through the process of diffusion. Because they are so small, they do not have the organs, pores and entryways to breathe like multicellular organisms.

Of 3.

plants respire through stomata present in leaves.. photosynthesis and respiration both are different. during respiration plants take in oxygen and give out carbon dioxide. they respire with the help of stomata present in leaves.

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