physiology of plants, humans and animals - Category wise Question and Answer Practice Test with Solutions

physiology of plants, humans and animals PRACTICE TEST [6 - EXERCISES]

set 1

set 2

set 3

set 4

set 5

set 6

Question : 6

The hormone reducing transpiration rate by inducing stomatal closure is

a) ethylene

b) cytokinin

c) ABA

d) auxin

Answer: (c)

Question : 7

Which of the following organs can be called as a sort of "blood bank" ?

a) Heart

b) Lungs

c) Liver

d) Spleen

Answer: (d)

Question : 8

The muscles in stomach are.

a) involuntary

b) voluntary

c) Cardior

d) None of the above

Answer: (a)

Question : 9

The junction between an axon and dendrite is called

a) synapse

b) cyton

c) relay

d) conduction zone

Answer: (a)

The junction between an axon and dendrite is known as a synapse through which nerve impulse is transmitted from one neuron to another.

A synapse consists of swelling at the end of nerve fibre called synaptic knob and a small synaptic vesicle containing neuro-transmitter–acetylcholine for the transmission of nerve impulse.

Question : 10

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.

Answer: (b)

Fermentation is the process of production of alcohol from plant or microbial sugar under controlled conditions, aerobic cellular respiration is oxidation of plant stored food to produce energy, anaerobic respiration is production of energy from plant food in absence of oxygen.

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