TNPSC Group 1, 2 Biology Model Question Paper 2019-2020 - 1

Question: 1

Stump of well watered potted plant show exudation of sap due to

(A) Capilarity

(B) Transpiration pull

(C) Root pressure

(D) Cohesion force 

Ans: C

Root pressure

Question: 2

Bed bug feeds on

(A) Adult mosquito

(B) Blood

(C) Mosquito larva

(D) Plant sap

Ans: B

Blood

Question: 3

Asexual spores produced exogenously on phialides are called

(A) Oogoonia 

(B) Sporangia

(C) Oidia

(D) Conidia

Ans: D

Conidia

Question: 4

Light energy is converted into bio-chemical energy by

(A) Photosynthesis

(B) Osmosis

(C) Transpiration

(D) Respiration

Ans: A

Photosynthesis

Question: 5

Respiration in the absence of oxygen is

(A) Anaerobic respiration

(B) Aerobic respiration

(C) Transpiration

(D) Guttation

Ans: A

Anaerobic respiration

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