Solved MCQs of Biology Class 9
No life would be possible if the process of ………….. stops.
Respiration
Photosynthesis
Both
None
ATP has ……….. phosphate group.
Two
Three
Four
Five
………. is the most abundant .
Chlorophyll a
Chlorophyll b
Chlorophyll c
Chlorophyll d
Bactelio-chlorophyll is found in ………… .
Virus
Bacteria
Both
None
The 6-carbon compounds during the dark reactions of photosynthesis split into ____________ carbon compound.
5
3
7
4
Ribose is a _______ carbon sugar.
Two
Three
Five
Ten
______________ reactions are the direct source of energy.
Oxidation
Redox
Reduction
None
The light reactions of photosynthesis take place on the _____________ of chloroplasts.
Stroma
Thylakoid membrane
Lumen
Sacs
When we work hard we suffer from muscle fatigue because muscle cells:
Carry out aerobic respiration at faster rate and so are tired
Carry out anaerobic respiration and so-accumulate more CO2
Carry out anaerobic respiration and so accumulate lactic acid
Carry out aerobic respiration at faster rate and so burst
Carbon Dioxide is almost ………. percent in air.
0,01
0.3
0,03
0.1
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