SECOND SEMESTER B.Sc DEGREE EXAMINATION,MARCH 2012
(CCSS)
Botany-complementary course
BO 2C-PLANT PHYSIOLOGY AND ECOLOGY
TIME:Three hours Maximum:30 weitage
1 Answer all questions
1 Hpertonic solution is one with:
(a)Low concentration of solute
(b)High concentration of solute.
(c)equal concentration of solute and solvent
(d)None of the above
2 Thistle funnel experiment is used to prove:
(a)imbibition (b)Osmosis
(c)Diffusion (d)Absorption
3 During passive absorption:
(a)Energy is used
(b)Energy is not used
(c)Movement occurs along concentration gradient
(d)None of the above
4 Epithem is seen in:
(a)Stomata (b)Hydathode
(c)Epidermus (e)None of the above
5 During non-cyclic photophosphorylation,electron moves in:
(a)Cyclic way (b)Non-cyclic way
(c)Both (d)None
6 Chlorophyll pigment involved in PS11 is:
(a)P-680 (b)P-700
(c)P-100 (d)P-430
7 Florigin is concerned with :
(a) Senescene. (b) Flowering
(c) Root initiation (d)None of the above
8 NADH2 on complete oxidation,produses:
(a)1ATP (b)2ATP
(c)3ATP (d)4ATP
9 Biotic and abiotic components together constitute:
(a)Biosphere (b)Ecosystem.
(c) Biome (d) None of the above
10 Edapic factors are concernt with:
(a) Atmosphere (b) Soil
(c) Both (d) None of the above
11 Pneumatothodes are seen in :
(a) Pneumatophores (b) Vanda roots
(c) Fiscus roots (d) None
12 Which of the following is a parasite?
(a) Drynaria. (b)Cuscuta.
(c) Nepenthus. (d) Rhizopus] (12*1/4=3weightage)
11 Answer all nine questions.(Short Answer Type) :
13 Which is the site of glycolitic reaction?
14 Define Osmosis.
15 State Blackmans law of limiting factors.
16 State root pressure theory.
17 What is selectivity permiable membrane? Give an example.
18 Name the enzyme that are concernt with the assimilation of CO2 in c4 plants
19 What are the biotic components of an ecosystem?
20 What is profundal zone ?
21 What are the morphological adaptations of a hydrophytes ? (9*1=9weightage)
111. Answer any five questions (Short essay/Paragraph) :
22 Describe cyclic photophosphorylation.
23 Give a brief account of active absorption.
24 Explain the process of ascent of sap
25 Give a brief account of cytokinin
26 Explain the i9mportance of plants in ecological protection .
27 Explain anatomical features of Xerophytes
28 Give a brief account of the importance of halophytes.
1V. Answer any two questions.(Essay Questions). (5*2=10weightage)
29 Explain dark reaction.
30 Write an essay on transpiration.
31 Give an account of plant succession. (2*4=8weightage)
(CCSS)
Botany-complementary course
BO 2C-PLANT PHYSIOLOGY AND ECOLOGY
TIME:Three hours Maximum:30 weitage
1 Answer all questions
1 Hpertonic solution is one with:
(a)Low concentration of solute
(b)High concentration of solute.
(c)equal concentration of solute and solvent
(d)None of the above
2 Thistle funnel experiment is used to prove:
(a)imbibition (b)Osmosis
(c)Diffusion (d)Absorption
3 During passive absorption:
(a)Energy is used
(b)Energy is not used
(c)Movement occurs along concentration gradient
(d)None of the above
4 Epithem is seen in:
(a)Stomata (b)Hydathode
(c)Epidermus (e)None of the above
5 During non-cyclic photophosphorylation,electron moves in:
(a)Cyclic way (b)Non-cyclic way
(c)Both (d)None
6 Chlorophyll pigment involved in PS11 is:
(a)P-680 (b)P-700
(c)P-100 (d)P-430
7 Florigin is concerned with :
(a) Senescene. (b) Flowering
(c) Root initiation (d)None of the above
8 NADH2 on complete oxidation,produses:
(a)1ATP (b)2ATP
(c)3ATP (d)4ATP
9 Biotic and abiotic components together constitute:
(a)Biosphere (b)Ecosystem.
(c) Biome (d) None of the above
10 Edapic factors are concernt with:
(a) Atmosphere (b) Soil
(c) Both (d) None of the above
11 Pneumatothodes are seen in :
(a) Pneumatophores (b) Vanda roots
(c) Fiscus roots (d) None
12 Which of the following is a parasite?
(a) Drynaria. (b)Cuscuta.
(c) Nepenthus. (d) Rhizopus] (12*1/4=3weightage)
11 Answer all nine questions.(Short Answer Type) :
13 Which is the site of glycolitic reaction?
14 Define Osmosis.
15 State Blackmans law of limiting factors.
16 State root pressure theory.
17 What is selectivity permiable membrane? Give an example.
18 Name the enzyme that are concernt with the assimilation of CO2 in c4 plants
19 What are the biotic components of an ecosystem?
20 What is profundal zone ?
21 What are the morphological adaptations of a hydrophytes ? (9*1=9weightage)
111. Answer any five questions (Short essay/Paragraph) :
22 Describe cyclic photophosphorylation.
23 Give a brief account of active absorption.
24 Explain the process of ascent of sap
25 Give a brief account of cytokinin
26 Explain the i9mportance of plants in ecological protection .
27 Explain anatomical features of Xerophytes
28 Give a brief account of the importance of halophytes.
1V. Answer any two questions.(Essay Questions). (5*2=10weightage)
29 Explain dark reaction.
30 Write an essay on transpiration.
31 Give an account of plant succession. (2*4=8weightage)
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