1. Which of the following is a chemical link between catabolism and anabolism?
AMP
ADP
ATP
All of these
✅ The correct answer is option C.
Bioenergetics MCQs
2. Photosynthesis is a process in which ________ compounds of carbon (CO2) and hydrogen (H2O) are reduced to carbohydrate like (glucose) using light energy.
Organic
Energy-rich
Energy-poor
Reduced
✅ The correct answer is option C.
3. C6H12O6 + 6O2? 6CO2 + 6H20 + ENERGY represents:
Photosynthesis
Aerobic respiration
Anaerobic respiration
Respiration
✅ The correct answer is option B.
4. At which times there is no net gaseous exchange between leaves and the atmosphere.
Daytime.
Night time.
Dawn & Dusk.
Midnight.
✅ The correct answer is option C.
5. Which of the following is a compensation point:
Leaves respire and utilize O2 and release CO2.
Photosynthesis and respiration occur at the same rate. So there is no net exchange of gases between atmosphere and plants.
The rate of photosynthesis increases, so does the O2 production, with a net release of oxygen coupled with the uptake of CO2.
The rate of respiration becomes more than the rate of photosynthesis.
✅ The correct answer is option B.
6. The quantitative study of energy relationships in biological systems obeys.
Bioenergetics
Laws of thermodynamics
Laws of thermochemistry
Laws of chemical energetic
✅ The correct answer is option B.
7. The organisms able to use sunlight directly as a source of energy are
Plants
Animals
Omnivores
Fungi
✅ The correct answer is option A.
8. Of the following which one is not an energy releasing process?
Glycolysis
Respiration
Photosynthesis
Kreb’s cycle
✅ The correct answer is option C.
9. Net yield of H2O in Photosynthesis is
1 molecule
6 molecules
3 molecules
0 molecule
✅ The correct answer is option D.
10. The point at which there is no net exchange of gases between leaves and atmosphere is known as
Neutral point
Compensation point
Parallel point
Competitive point
✅ The correct answer is option B.