set 2 MCQ Questions & Answers Detailed Explanation

Question : 1

Double fertilization means

a) fusion of two polar bodies

b) a male gamete fused with egg and second male gamete fused with secondary nucleus

c) fusion of male gametes and ovum

d) all the above

Question : 2

Which one among the following statements is correct?

a) All veins carry oxygenated blood

b) All arteries carry oxygenated blood

c) Except the pulmonary artery, all other arteries carry oxygenated blood

d) Except the pulmonary vein, all other veins carry oxygenated blood

Question : 3

The hormone responsible for phototropism is

a) Abscisic acid

b) Auxin

c) Ethylene

d) Gibberellic acid

Question : 4

Fungi

a) include both autotrophs and heterotrophs.

b) always reproduce asexually using spores.

c) cause tuberculosis and lyme disease in humans.

d) include both inicellular and multicellular forms.

Question : 5

Match List-I with List-II and select the correct answer using the code given below the lists.

a) 2 1 4 3

b) 4 3 2 1

c) 3 2 1 4

d) 1 4 3 2

Question : 6

Which of the following is true of plants?

a) Plants can create their own sugar using aerobic cellular respiration.

b) Plants can create their own sugars using photosynthesis.

c) Plants can create their own sugars using fermentation.

d) Plants can create their own sugar using anaerobic cellular respiration.