THE LIVING WORLD
Q1. Which two of the below given points are known as the twin characteristics of growth?
(i) Increase in mass
(ii) Increase in number of individuals
(iii) Cellular organisation
(iv) Cellular differentiation
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (iii) and (iv)
Ans.a
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Q2. In plants, growth occurs it occurs whereas in animals,
(a) only upto a certain age, continuously
(b) continuously, only upto a certain age
(c) continuously, continuously
(d) only upto a certain age, only upto a certain age
Ans.b
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Q3. Match column I with column II and select the correct option from the codes given below.
Column I Column ll
A.Planaria (i) Binary fission
B. Fungi (ii) Asexual spores
C. Yeast (iii) Budding
D.Amoeba (iv) True regeneration
(v) Fragmentation
(a) A-(i), B-(ii), C-(iii), D-(iv)
(b) A-(iv), B-(ii), (v), C-(iii), D-(i)
(c) A-(ii), B-(v), C-(i), D-(iv)
(d) A-(v), B-(ii), (i), C-(iii), D-(iv)
Ans.b
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Q4. The statement 'nothing lives forever, yet life continues' illustrates the role of
(a)embryogenesis
(b) morphogenesis
(c) replication
(d) reproduction.
Ans.d
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Q5. Which of the following groups consists of organisms which multiply by fragmentation?
(a) Earthworm, Amoeba, fungi
(b) Earthworm, fungi, bacteria
(c) Fungi, filamentous algae, protonema of mosses
(d) Amoeba, Hydra, bacteria
Ans.c
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Q6. Which of the following organisms does not reproduce?
(a) Mule
(b) Worker bee
(c) Infertile human female
(d) All of these
Ans.d
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Q7. Read the following statements and select the correct option.
Statement 1: Reproduction cannot be considered as ery defining property of living organisms.
Statement 2: There are many living organisms which do not reproduce, e.g., mules, worker bees, etc.
(a) Both statements 1 and 2 are correct.
(b) Statement 1 is correct but statement 2 is incorrect.
(c) Statement 1 is incorrect but statement 2 is correct.
(d) Both statements 1 and 2 are incorrect.
Ans.a
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Q8. Which of the following statements regarding the response of living organisms to external stimuli is correct?
(a) The external environmental stimuli can be physical, chemical or biological.
(b) All organisms, from the prokaryotes to the most complex eukaryotes can sense and respond to environmental stimuli.
(c) Consciousness and response to external stimuli is the defining property of living organisms.
(d) All of these
Ans.d
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Q9. Read the following statements and select the correct ones.
(i) Increase in mass and increase in number of individuals are twin characteristics of growth.
(ii) Metabolic reactions can be demonstrated outside the body in isolated cell-free systems.
(iii) 'Response to stimuli' is a defining property of living organisms.
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (i), (ii) and (iii)
Ans.d
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Q10. A living organism is unexceptionally differentiated from a non-living structure on the basis of
(a) reproduction
(b) growth and movement
(c) interaction with environment
(d) responsiveness.
Ans.d
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Q11. Which of the following sets does not contain defining characteristics of living organisms?
(a) Growth and reproduction
(b) Metabolism and cellular level of organisation
(c) Response to stimuli and consciousness
(d) All of these
Ans.a
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Q12. Which of the following is the correct representation of organisation levels in living beings?
(a) Subcellular - Cellular - Individual - Community - Population
(b) Atomic - Molecular - Subcellular - Cellular - Tissue - Organ system - Individual
(c) Individual - Population - Organ system -
Tissue - Cellular - Molecular - Atomic
(d) Atomic - Molecular -Tissue - Individual - Ecosystem - Community
Ans.b
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Q13.__________ is the branch of science dealing with identification, nomenclature and classification of organisms.
(a) Morphology
(b) Ecology
(c) Anatomy
(d) Taxonomy
Ans.d
______________________
Q14. First step in taxonomy is
(a) description of the organism
(b) identification of the organism
(c) nomenclature of the organism
(d) classification of the organism
Ans.b
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