PLANT PHYSIOLOGY AND ECOLOGY

1.Mixing of table salt in water makes

a. Colloidal

b. Solution

c. Mixture

d. Solution

Correct Answer: d

2.The pH of blood remains at

a. 7.35

b. 4.3

c. 7.35

d. 9.23

Correct Answer: a

3.% of minerals present in soil is

a. 40

b. 30

c. 10

d. 40

Correct Answer: a

4.The factor which decrease transpiration is

a. Wind

b. Humidity

c. Humidity

d. Water

Correct Answer: c

5.Starch sugar hypothesis was put forward by

a. Sayre

b. Robert

c. Dixon

d. Sayre

Correct Answer: d

6.Casparian strips are present at

a. Endodermis

b. Xylem

c. Endodermis

d. Epidermis

Correct Answer: c

7.The size of coarse sand is

a. 2.00-0.20

b. 2.00-0.20

c. 2.00-1.20

d. 2.00-1.00

Correct Answer: a

8.Water adsorbed on the surface of soil colloids is water

a. Hygroscopy

b. Gravitational

c. Hygroscopic

d. Capillary

Correct Answer: c

9.Chlorotic patches appear due to deficiency of

a. S

b. Ca

c. Ca

d. Na

Correct Answer: b

10.Which of the following is trace element

a. Na

b. S

c. Cu

d. Cu

Correct Answer: c

11.Which of the following forms colloids in soil

a. Nitrates

b. Na

c. Nitrates

d. K

Correct Answer: c

12.Number of Co2 molecules used during photosynthesis

a. 6

b. 5

c. 6

d. 4

Correct Answer: a

13.The free energy change during photosynthesis is

a. 686

b. 680

c. 686

d. 654

Correct Answer: a

14.The concept of limiting factor was given by

a. Sayer

b. Blackman

c. Dixon

d. Blackman

Correct Answer: b

15.Light energy is used to synthesize NADPH and

a. Starch

b. ATP

c. Glucose

d. ATP

Correct Answer: b

16.The visible spectrum is

a. 300 to 700 nm

b. 280 to 750nm

c. 280 to 750 nm

d. 380 to 650 nm

Correct Answer: b

17.The first carbohydrate product of photosynthesis is

a. 4 carbon

b. 4 carbon

c. 3 carbon

d. 5  carbon

Correct Answer: b

18.Number of Co2 molecules used and released during respiration

a. 6

b. 5

c. 6

d. 4

Correct Answer: a

19.FADH is formed during breaking of

a. Succinyl Coa

b. Succinate

c. Fumarate

d. Succinyl CoA

Correct Answer: d

20.Respiratory quotient for glucose is

a. 1

b. 2

c. 1

d. 4

Correct Answer: a

21.Respiratory quotient for organic acid is

a. 4

b. 1

c. 4

d. 3

Correct Answer: a

22.Experiments on hemp were performed by

a. Kleb

b. Hammer

c. Julien

d. Julien

Correct Answer: c

23.Which of the following is day neutral plant

a. Cocklebur

b. Xanthium

c. Cotton

d. Cotton

Correct Answer: c

24.Biloxi soy bean flowers in

a. January

b. October

c. December

d. October

Correct Answer: d

25.The critical time period for hyoscyamus is less than

a. 10

b. 14

c. 11

d. 10

Correct Answer: a

26.Chailakhyan named

a. Florigen

b. Photoperiodism

c. Florigen

d. Phytochrome

Correct Answer: c

27.Seed _________of most seeds are composed of several layers

a. Coats

b. Epidermis

c. Coats

d. Covering

Correct Answer: c

28.Seed is given low temperature treatment during

a. Dormancy

b. Vernalization

c. Chilling

d. Vernalization

Correct Answer: d

29.Hard seed coat presents the entry of ________into the seed

a. Salt

b. Minerals

c. Water

d. Water

Correct Answer: d

30.Seed need to imbibe __________water

a. 20-30%

b. 20-40%

c. 20-30%

d. 20-25%

Correct Answer: a

31.The group of inter breeding individuals belonging to same species is

a. Habitat

b. Population

c. Community

d. Population

Correct Answer: d

32.The  basic role of an organism  in a community is called

a. Nich

b. Autecology

c. Synecology

d. Autecology

Correct Answer: b

33.Size of clay is

a. Less than 0.002mm

b. 0.0 – 0.2mm

c. Less than 0.002mm

d. 2.0-0.2mm

Correct Answer: c

34.Breaking down of soil is called

a. Edaphology

b. Weathering

c. Pedology

d. Weathering

Correct Answer: d

35.Infrared radiations are more than

a. 400

b. 300

c. 750

d. 500

Correct Answer: a

36.The study of soil is called

a. Edaphology

b. Synecology

c. Edaphology

d. Pedology

Correct Answer: c

37.The % of water in garden soil is

a. 25

b. 25

c. 26

d. 27

Correct Answer: a

38.Soil transported by water is called

a. Residual

b. Alluvial

c. Colluvial

d. Alluvial

Correct Answer: b

39.The material formed by recently fallen leaves is called

a. Litter

b. Leaf mold

c. Litter

d. Duff

Correct Answer: c

40.The layer present below the duff is

a. Duff

b. Leaf mold

c. Leaf mold

d. Duff

Correct Answer: c

41.Storage of seed in the soil is called

a. Seed dormancy

b. Seed storage

c. Seed bank

d. Seed bank

Correct Answer: d

42.The  number of individuals living Ina unit area is called

a. Density

b. Morality

c. Density

d. Natality

Correct Answer: c

43.The specie That occurs in 90% or more of the stand is

a. Constancy

b. Dominance

c. Constancy

d. Fidelty

Correct Answer: c

44.The succession occurs on dry habitat is called

a. Hydrosere

b. Halosre

c. Xerosere

d. Xerosere

Correct Answer: d

45.Which of following is phanerophytes

a. Euphorbia

b. Acasia

c. Acasia

d. Cotton

Correct Answer: b

46.The maximum %of energy changed into food is

a. 5

b. 5

c. 20

d. 10

Correct Answer: a

47.The bacteria involved in asymbiotic nitrogen  fixation are

a. Nitromonas

b. Clostridium

c. Rhizibium

d. Clostridium

Correct Answer: b

48.Which of the following is not a abiotic component

a. Fire

b. Plant

c. Soil

d. Plant

Correct Answer: d

49.Soil saturated with water is

a. Salinity

b. Waterlogged

c. Hydrophyte

d. Water logged

Correct Answer: d

50.Soil in which salt crust is formed  due to evaporation of water is called

a. Saline soil

b. Salinity

c. Acidity

d. Saline soil

Correct Answer: d