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Science (Biology) Questions For CTET Exam

Science (Biology) Questions For CTET Exam_30.1

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
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)