Solved MCQs of Biology Class 9
intensity of light is …….. at midday.
Maximum
Minimum
Both
None
Pyruvic acid is produced in ______ respiration:
Aeorbic
Anaerobic
Both aerobic and anaerobic
None of these
How many molecules of CO2 are produced when krebs cycle operates once?
01
02
03
06
When we work hard we suffer form muscle fatigue muscle cells.
Carry out aerobic respiration and so accumulate more CO2
Carry out anaerobic respiration and so accumulate lactic acid
Carry out aerobic respiration at faster rate and so accumulate lactic acid
Carry out aerobic respiration at faster rate and so are tired
When chemical bound broken energy is ………….. .
Released
Formed
Both
None of them
Aerobic respiration needs free …………. .
Carbon
Nitrogen
Oxygen
None
There are ……… types of photosystem.
One
Two
Three
Four
Which of following set of organisms can synthesize their own food?
Plants, fungi, protozoans
Fungi, algae, bacteria
Plants, photosynthetic bacteria, algae
Plants, non photosynthetic bacteria algae
ATP molecule was discovered by:
Fritz Lipmann
Calvin
Karl Lohmann
Hans krebs
The visible portion of sunlight consist of …………… colours.
Four
Five
Six
Seven
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