Q1. Leaves are green because they
(a) Absorb green light
(b) Do not absorb but reflect green light
(c) Utilize green light
(d) None of these
Q2. Which of the following is required for synthesis of carbohydrate–
(a) Chlorophyll
(b) Water
(c) Nitrogen
(d) Carbon dioxide
Q3. Plant purify air during–
(a) Photosynthesis
(b) Desiccation
(c) Transpiration
(d) None of these
Q4. Translocation of carbohydrate nutrient usually occurs in the form of–
(a) Glucose
(b) Sucrose
(c) Starch
(d) None of these
Q5. Transpiration is least in
(a) good soil moisture
(b) high wind velocity
(c) dry environment
(d) high atmospheric humidity.
Q6. Translocation of food occur through–
(a) Sieve tube/Phloem cell
(b) Tracheids
(c) Xylem vessels
(d) Latex duct
Q7. Photosynthesis proceeds in sequence of–
(a) Dark phase and light phase
(b) Light phase alone
(c) Light phase and dark phase
(d) Dark phase alone
Q8. Stomata open and close due to
(a) circadian rhythm
(b) genetic clock
(c) pressure of gases inside the leaves
(d) turgor pressure of guard cells.
Q9. ATP mean–
(a) Adesino tri phosphate
(b) Adenine tri phosphate
(c) Adenosine tri phosphate
(d) Adenosine tetraphosphate
Q10. Both respiration and photosynthesis require–
(a) Sunlight
(b) Chlorophyll
(c) Glucose
(d) Cytochromes
Solutions:
S1. Ans.(b)
S2. Ans.(d)
S3. Ans.(a)
S4. Ans.(b)
S5. Ans.(d)
S6. Ans.(a)
S7. Ans.(c)
S8. Ans.(d)
S9. Ans.(c)
S10. Ans.(d)
