12-botany-unit-v & VI Plant Physiology & Biology In Human Welfare
.png "12-botany-unit-v & VI Plant Physiology & Biology In Human Welfare")
Prepared by Mr. D. Rajamani, M. Sc. ,M. Ed. , P. G. Asst Botany A. C. S Mat. Hr Sec. School, Arni. Tiruvannamalai Dist ; &nbs p; & www. Padasalai. Net
- 1.The term enzyme was coined by
- A.
Kuhne
- B.
Fischer
- C.
Buchner
- D.
Koshland
- 2.The lock and key theory of enzyme action was proposed by
- A.
Fischer
- B.
Kuhne
- C.
Buchner
- D.
Koshland
- 3.An example for transverase is
- A.
Transaminase
- B.
Pyruvic carboxylase
- C.
Histidine decarboxylase
- D.
G-3-P dehydrogenase
- 4.Photosynthesis takes place in
- A.
chloroplasts
- B.
Mitochondria
- C.
Peroxisomes
- D.
ribosomes
- 5.During cyclic electron transport, which one of the following is produced
- A.
ATP only
- B.
NADPH2 only
- C.
NADH2 only
- D.
both ATP and NADPH2
- 6.Which one of the following is a five carbon compound?
- A.
Ribose
- B.
DHAP
- C.
fructose
- D.
erythrose
- 7.The essential component for the formation of chlorophyll
- A.
Mg
- B.
Fe
- C.
Cl
- D.
Mn
- 8.Which one of the following is a C4 plant?
- A.
Sugarcane
- B.
Potato
- C.
Rice
- D.
Wheat
- 9.Which of the following bacterium oxidizes ammonia to nitrate
- A.
Nitrosomonas
- B.
Rhizobium
- C.
Closteridium
- D.
E. coli
- 10.The pigment which is highly efficient in absorbing solar energy is
- A.
Chlorophyll
- B.
Phycobilins
- C.
Carotinoids
- D.
Xanthophyll
- 11.Which of the following is a total parasite
- A.
Cuscuta
- B.
Viscum
- C.
Drosera
- D.
Monotropa
- 12.Which of the following wavelengths of light is most effective for photosynthesis
- A.
400 nm to 700 nm
- B.
700 nm to 900 nm
- C.
100 nm to 200 nm
- D.
200 nm to 300 nm
- 13.Dark respiration is the function of
- A.
Mitochondria
- B.
Peroxisomes
- C.
Chloroplast
- D.
Ribosome
- 14.Dark reaction is also known as
- A.
Calvin cycle
- B.
Krebs cycle
- C.
Pentosephosphate pathway
- D.
photorespiration
- 15.The gas evolved during photosynthesis is
- A.
Oxygen
- B.
hydrogen
- C.
carbondioxide
- D.
Nitrogen
- 16.C4 pathway is otherwise known as
- A.
Hatch-Slack pathway
- B.
EMP pathway
- C.
photorespiration
- D.
Electron transport chain
- 17.An example for insectivorous plant is
- A.
Drosera
- B.
Viscum
- C.
Monotropa
- D.
Vanda
- 18.Photorespiration is otherwise called as
- A.
C2 cycle
- B.
C3 cycle
- C.
C4 cycle
- D.
C5 cycle
- 19.Which of the following is regarded as primary pigment?
- A.
Chlorophyll ‘a’
- B.
Chlorophyll ‘b’
- C.
Carotenoid
- D.
Xanthophyll
- 20.The dark reactions of photosynthesis were discovered by
- A.
Melvin Calvin
- B.
Krebs
- C.
Embden and Meyer
- D.
Parnas
- 21.Which of the following is a 5C compound?
- A.
RuBP
- B.
Glucose
- C.
Fructose
- D.
Phosphoglyceric acid
- 22.In C3 plants light reactions and dark reactions occur in
- A.
Mesophyll cells
- B.
bundle sheath cells
- C.
Epidermal cells
- D.
Vascular cells
- 23.In C3 pathway acceptor molecule of CO2 is
- A.
RuBP
- B.
Phosphoenol pyruvate
- C.
PGA
- D.
DHAP
- 24.Which of the following is not a C4 plant?
- A.
Wheat
- B.
Amaranthus
- C.
Maize
- D.
Tribulus
- 25.Vanda plant is a/an ----
- A.
Epiphyte
- B.
total parasite
- C.
Partial parasite
- D.
Saprophyte
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