BOTANY MODEL QUESTIONS PAPERS FOR NEET AND EAMCET
1. Chlorine deficiency leads to
a. Bronzing in legume
b. Mouse-ear in pecan
c. Whiptail in cauliflower
d. Dieback in citrus
ans. a
2. Which f the following statements truly justifies osmosis through a selectively permeable membrane?
a. Movement of solvent from a region of higher solvent concentration to a region of lower solvent concentration
b. Movement of solvent from a region of lower solvent concentration to a region of higher solvent concentration
c. Movement of solvent from a region of higher solute concentration to a region of lower water concentration
d. Movement of solvent from a region of lower water potential to a region of higher water potential
ans. a
3. Which of the following statements is true?
a. Iron is a constituent of cytochrome and chlorophyll
b Iron is a constituent of cytochrome but not chlorophyll
c. Magnesium is a constituent of cytochrome and chlorophyll
d. Magnesium is a constituent of cytochrome but not chlorophyll
ans. b
4. Assertion (A): Excess of Manganese induces a deficiency of Iron, Magnesium, and Calcium
Reason (R) Manganese competes with an uptake of calcium and translocation of Iron and Magnesium
a. Both A and R are true
b. A is true but R is false
c. A is false but R is true
d. Both A and R are false
and. b
5. An example of Transferase class of enzymes is
a. Glutamine synthetase
b. Phosphokinase
c. Fructose-1,6- bis phosphatase
d. Argino succinase
ans. b
6. The co-factor that can form coordination bonds with the side chain of enzyme active size and also coordinate bonds with the substrate is
a. Prosthetic group
b. coenzyme
c. metal ions
d. All the above
ans.c
7. T.W. Engelmann in his experiment on the action spectrum of photosynthesis used a green alga
a. Chlorella
b. Chlamydononas
c. Spirogyra
d. Cladophora
ans. d
8. The utilization of ATPs and NADPHs for every cycle of Calvin is
a. 18 ATP and 12 NADPH
b. 3 ATP and 2 NADPH
c. 2 ATP and 3 NADPH
d. 12 ATP and 12 NADPH
ans. b
9. The third oxidation in Kreb's cycle employs the enzyme
a. Iso citric dehydrogenase
b. α - keto glutaric acid and dehydrogenase
c. Succinic dehydrogenase
d. Malic dehydrogenase
ans. c
10. Auxins were first isolated from
a. Human urine
b. Canary grass
c. Oat coleoptiles
d. Coconut endosperm
ans. a
