21. The raw materials in photosynthesis are
(a) Water, Oxygen
(b) CO2, O2
(c) Water, CO2✅
(d) Glucose, Water
22. The water from the soil enters into the root hairs by the process of
(a) Photosynthesis
(b) Osmosis✅
(c) Diffusion
(d) Respiration
23. The air enters the leaf through
(a) Pits
(b) Stomata✅
(c) Mesophyll
(d) Xylem vessels
24. The light reactions of photosynthesis take place on the__________ of chloroplasts.
(a) Stroma
(b) Thylakoid membrane✅
(c) Lumen
(d) Sacs
25. The reactions which do not require light during photosynthesis are called reactions.
(a) Chemical
(b) Redox
(c) Dark✅
(d) Light
26. Electrons are passed to ETC to produce:
(a) AMP
(b) ATP✅
(c) ADP
(d) NAD+
27. The 6-carbon compounds during the dark reactions of photosynthesis split into_____ carbon compound.
(a) 5
(b) 3✅
(c) 7
(d) 4
28. How many percent of the light falling on the leaf surface is absorbed;
(a) 5%
(b) 6%
(c) 7%
(d) 1%✅
29. Exchange of water vapours and gases occurs in leaf through:
(a) Stomata✅
(b) Epidermis
(c) Xylem
(d) Phloem
30. Any environmental factor, the absence or deficiency of which can decrease rate of a metabolic relations known as;
(a) Unlimited factor
(d) Limiting factor✅
(c) Both
(d) None
31. Vessels, which transport water and salts to the plant are the components of:-
(a) Xylem✅
(b) Phloem
(c) Vascular tissues
(d) All
32. Photosynthesis takes place in:
(a) Chloroplasts✅
(b) Cytoplasm
(c) mitochondria
(d) All
33. Final products of anaerobic respiration is:
(a) Lactic acid
(b) Ethanol
(c) CO2
(d) All✅
34. Glycolysis occurs in:
(a) Cytoplasm✅
(b) Stroma
(c) Nucleus
(d) All
35. Fungi Aspergillus is used for making:
(a) Yogurt
(b) Cheese
(c) Soy Sauce✅
(d) Baking
36. Pyruvic acid is a Carbon compound.
(a) 5
(b) 4
(c) 3✅
(d) 2
37. In which of the following metabolic process, oxidation as well as reduction of molecules occur?
(a) Photosynthesis
(b) Respiration
(c) Both✅
(d) None of these
38. Chlorophyllous pigment absorbs maximum light in wavelengths of:
(a) Green and blue
(b) Green and red
(b) Green only
(d) Red and blue✅
39. ATP was discovered by:
(a) Schwann
(b) J.Purkinji
(c) Darwin
(d) Karl Lohmann✅
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