Biological Classification And System Of Classification Question 40
Question: When green algae are illuminated, motile aerobic bacteria usually accumulate near them. This is because, bacteria
[NCERT 1984]
Options:
A) Have attraction for light
B) Have attraction for green plants
C) Have attraction for oxygen
D) Have attraction for $ CO_2 $
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Answer:
Correct Answer: C
Solution:
Green algae are photosynthetic organisms that convert light energy into chemical energy through the process of photosynthesis. During photosynthesis, they produce oxygen as a byproduct.
Motile aerobic bacteria are bacteria that can move and require oxygen for their survival. They are attracted to areas with high concentrations of oxygen.
When green algae are illuminated, they perform photosynthesis more actively and produce more oxygen.
This increase in oxygen concentration attracts the motile aerobic bacteria, causing them to accumulate near the illuminated green algae.
Therefore, the correct answer is C) Have attraction for oxygen.
BETA
