NCERT CBSE class11 biology online exam,model,practice mock tests

The Living World Mock Test-2

Question No:1

Among the following choose the properties shown by the living organism exclusively
I. growth.
II. increase in mass.
III. self-replication ability.
IV. response to touch stimuli.

[A] I and II
[B] I, II and III
[C] I, III and IV
[D] I, II, III and IV



Question No:2

Among the following listed features, which is not a unique feature of living organisms?

[A] Increase in size
[B] Response to stimuli
[C] Self organisation
[D] Growth and reproduction



Question No:3

Which of the following are considered as the twin characteristics of growth?
I. Response to stimuli.
II. Increase in mass.
III. Increase in the number of individuals.
IV. Increase in width.

[A] II and IV
[B] III and IV
[C] II and III
[D] I, II, III and IV



Question No:4

Among the following, which is a common phenomenon exhibited by living and non-living organisms to show the feature of growth?

[A] Increase in mass
[B] By cell division
[C] Increase in replication rate
[D] By cell differentiation



Question No:5

In plants, growth occur by …. throughout their life span.
Choose an appropriate option to complete the given NCERT statement.

[A] cell dedifferentiation
[B] cell differentiation
[C] cell multiplication
[D] None of these



Question No:6

Growth in unicellular organisms can be observed by

[A] counting the mass of cultured cells
[B] analysing the amount of nutrient absorbed by living organism
[C] growth cannot be observed
[D] in vitro culture by simply counting the number of cells under microscope



Question No:7

In majority of higher animals and plants reproduction and growth are

[A] mutually exclusive events
[B] synonymous events
[C] Both (a) and (b)
[D] None of the above



Question No:8

Increase in body mass criterion for growth can be considered a

[A] in living being
[B] non-living being
[C] Both (a) and (b)
[D] None of these



Question No:9

True regeneration is found in

[A] Amoeba
[B] Hydra
[C] Planaria
[D] Bacteria



Question No:10

Which of the following set of organisms reproduce by fragmentation (asexual mode of reproduction)?

[A] Amoeba, fungi and earthworm
[B] Fungi, filamentous algae and protonema of mosses
[C] Hydra, fungi, Amoeba and bacteria
[D] Earthworm, bacteria and fungi



Question No:11

Reproduction is synonymous with growth in which of the following set of organisms?

[A] Bacteria, unicellular algae and Amoeba
[B] Bacteria, Amoeba and fungi
[C] Unicellular algae and fungi
[D] Unicellular algae and filamentous algae



Question No:12

Select the correct option from the following.

[A] Mule can reproduce
[B] Worker bee undergoes reproduction to generate new progeny
[C] Mule and worker bee do not reproduce
[D] None of the above



Question No:13

Metabolism can be best defined as

[A] the process in which a chemical is formed inside a body
[B] the process in which a chemical is destroyed inside a body
[C] the sum total all of chemical reactions occurring in a body
[D] a complex construction process only



Question No:14

In which of the following, metabolic reactions take place?

[A] In living organism only
[B] Both in living and non-living organism
[C] In isolated cell free systems
[D] Both (a) and (c)



Question No:15

Process of metabolism leads to

[A] growth
[B] development
[C] functions of living body
[D] All of these