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
