Correct option is D
The correct answer is (D) They absorb dissolved oxygen via diffusion like Amoeba.
- Chlamydomonas is a small, unicellular green alga commonly found in freshwater.
- It performs various functions essential for survival through simple processes like diffusion and photosynthesis.
Information booster:
Key Features of Chlamydomonas:
Respiration: Chlamydomonas takes in oxygen from the surrounding water through diffusion.
Photosynthesis: It is a photoautotroph, meaning it uses sunlight to produce carbohydrates as food.
Survival Without Oxygen: In the absence of oxygen, Chlamydomonas can switch to anaerobic metabolism for energy.
Maintaining Cellular Balance: It uses substances like ascorbate and glutathione (GSH) to keep cellular redox balance.
Movement: Chlamydomonas moves with the help of two whip-like structures called flagella.
Reproduction
- It reproduces asexually by dividing into two cells.
- It can also reproduce sexually by fusing with another cell to form a zygote.
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