Chapter 6- Molecular Basis of Inheritance (Part- 1 )
1. Which of the following is the primary site of photosynthesis in plants?
- Stomata
- Chloroplasts
- Mitochondria
- Nucleus
- 2 Clear All
2. The enzyme responsible for fixing atmospheric nitrogen into a usable form by plants is called:
- Nitrate reductase
- Nitrogenase
- Nitrogen synthase
- Nitrite reductase
- 2 Clear All
3. In C4 plants, the primary CO2 fixation occurs in the:
- Mesophyll cells
- Bundle sheath cells
- Guard cells
- Xylem cells
- 1 Clear All
4. Which of the following is responsible for the opening and closing of stomata in plants?
- Abscisic acid
- Gibberellins
- Guard cells
- Auxins
- 3 Clear All
5. The process of conversion of nitrates into nitrogen gas is called:
- Nitrogen fixation
- Nitrification
- Denitrification
- Ammonification
- 3 Clear All
6. The pigment responsible for the absorption of light in photosynthesis is:
- Chlorophyll a
- Chlorophyll b
- Carotenoids
- Phycobilins
- 1 Clear All
7. The opening and closing of stomata are primarily regulated by the concentration of:
- Carbon dioxide
- Oxygen
- Water vapor
- Potassium ions
- 4 Clear All
8. The process of breakdown of glucose in the absence of oxygen is called:
- Fermentation
- Glycolysis
- Krebs cycle
- Electron transport chain
- 1 Clear All
9. The process of the synthesis of glucose from non-carbohydrate sources is called:
- Glycolysis
- Gluconeogenesis
- Glycogenesis
- Glycogenolysis
- 2 Clear All
10. Which of the following is not a step in the light-dependent reactions of photosynthesis?
- Photolysis of water
- Electron transport chain
- Carbon fixation
- Formation of ATP
- 3 Clear All