A. 5%
B. 70%
C. 20%
D. 10%
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Related Mcqs:
- The part of chloroplast where CO2 is fixed to manufacture sugar is__________?
A. Stroma
B. Grana
C. Thylakoid
D. Outer membrane - Photosynthesis is process in which ________ compounds of carbon (CO2) and hydrogen (H2O) are reduced to carbohydrate like (glucose) using light energy.
A. Organic
B. Energy rich
C. Energy poor
D. Reduced - Air contains __________ % of CO2 ?
A. 0.02-0.03
B. 0.03-0.04
C. 0.04-0.05
D. 0.05-0.06 - ___________ respiration is the process by which cell utilized oxygen and produces CO2 ?
A. Cellular
B. Organismic
C. Both of these
D. None of these - Arterial blood contains _________ of CO2 per 100 ml of blood
A. 54 ml
B. 60 ml
C. 64 ml
D. 50 ml - Low level of CO2 favours _________ of the stomata.
A. Opening
B. Closure
C. Both of these
D. None of these - In Urea cycle __________ ammonia molecules combine with 1 CO2 molecule to form 1 molecule of urea.
A. 1
B. 2
C. 3
D. 4 - Blood is carried towards the heart by __________?
A. Arteries
B. Capillaries
C. Veins
D. none of these - Sperms released in water are carried to the mesenchyme in sponges by__________?
A. Amoeboid cell
B. Stipules
C. Spicules
D. Spines - Photosynthesis carried out by terrestrial plants is _________ of total photosynthesis?
A. 1-2%
B. 5%
C. 10%
D. 20%
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