UNDERSTANDING OF LIFE EXERCISE-2
UNDERSTANDING OF LIFE EXERCISE-2
1. All living beings show :-
(1) Irritability
(2) Irregular shape
(3) Locomotion
(4) Absence of coordination
2. Bending of a shoot towards light is :-
(1) Irritability
(2) Healing
(3) Regeneration
(4) A photochemical reaction
3. Physical basis of life is :-
(1) Cell (2) Nucleus
(3) Protoplasm (4) Food
4. Fuelgen test is specific for :-
(1) Proteins (2) RNA
(3) Lipids (4) DNA
5. Which type of organisation is found in only living beings :-
(1) Atomic (2) Mixture
(3) Molecular (4) Subcellular
6. Organisation formed by individuals of a
species is :-
(1) Population (2) Ecosystem
(3) Community (4) All the above
7. Number of chemicals found in living cell is :-
(1) 25,000 (2) 2000 (3) 5000 (4) 500
8. Which one is a micromolecule :-
(1) Glucose (2) Protein
(3) DNA (4) Glycogen
9. Salt concentration of blood is :-
(1) 0.9 gm/100 ml (2) 9 gm/100 ml
(3) 100 mg/100ml (4)500mg/100 ml
10. Glucose concentration of blood for normal body function is :-
(1) 0.9 gm/100 ml
(2) 200 gm/100 ml
(3) 100 mg/100ml
(4) 500 mg/100 ml
11. Energy currency of a cell is :-
(1) Mitochondria (2) Golgi body
(3) DNA (4) ATP
12. Energy transfers or transformations are
never 100% efficient . This is due to :-
(1) Entropy (2)Homeostasis
(3) Aggregation (4) Adaptation
13. During nerve conduction, electric energy is produced . What is the source of this energy:-
(1) DNA (2) RNA (3) ATP (4) ACTH
14. What type of energy is needed to make up the loss of energy in a living system :-
(1) Heat energy
(2) Free energy
(3) Light energy
(4)Mechanical energy
15. Use of tail as fifth limb by Kangaroo is an example of-
(1) Short term adaptation
(2) Homeostasis
(3) Long term adaptation
(4) Energy transformation
16. Long term adaptation is :-
(1) Inheritable
(2) Formed due to evolution
(3) Permanent (4) All the above
17. Which organ remains functional for a few hours even after clinical death :-
(1) Minerals (2) Proteins
(3) Water (4) Fats
18. 80% of the living material of a cell is made of
(1) Minerals (2) Proteins
(3) Water (4) Fats
19. Sweating is meant for :-
(1) Killing of skin bacteria
(2) Regulation of body temperature
(3) Removal of excess salt
(4) Removal of excess water
20. 99% of living system is formed of four
elements :-
(1) CHOP (2) CHOS
(3) CNOP (4) CHON
ANSWER KEY EXERCISE-2
Q. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
A. 1 1 3 4 4 1 3 1 1 3 4 1 3 2 3 4 4 3
Q. 19 20
A. 2 4
1. All living beings show :-
(1) Irritability
(2) Irregular shape
(3) Locomotion
(4) Absence of coordination
2. Bending of a shoot towards light is :-
(1) Irritability
(2) Healing
(3) Regeneration
(4) A photochemical reaction
3. Physical basis of life is :-
(1) Cell (2) Nucleus
(3) Protoplasm (4) Food
4. Fuelgen test is specific for :-
(1) Proteins (2) RNA
(3) Lipids (4) DNA
5. Which type of organisation is found in only living beings :-
(1) Atomic (2) Mixture
(3) Molecular (4) Subcellular
6. Organisation formed by individuals of a
species is :-
(1) Population (2) Ecosystem
(3) Community (4) All the above
7. Number of chemicals found in living cell is :-
(1) 25,000 (2) 2000 (3) 5000 (4) 500
8. Which one is a micromolecule :-
(1) Glucose (2) Protein
(3) DNA (4) Glycogen
9. Salt concentration of blood is :-
(1) 0.9 gm/100 ml (2) 9 gm/100 ml
(3) 100 mg/100ml (4)500mg/100 ml
10. Glucose concentration of blood for normal body function is :-
(1) 0.9 gm/100 ml
(2) 200 gm/100 ml
(3) 100 mg/100ml
(4) 500 mg/100 ml
11. Energy currency of a cell is :-
(1) Mitochondria (2) Golgi body
(3) DNA (4) ATP
12. Energy transfers or transformations are
never 100% efficient . This is due to :-
(1) Entropy (2)Homeostasis
(3) Aggregation (4) Adaptation
13. During nerve conduction, electric energy is produced . What is the source of this energy:-
(1) DNA (2) RNA (3) ATP (4) ACTH
14. What type of energy is needed to make up the loss of energy in a living system :-
(1) Heat energy
(2) Free energy
(3) Light energy
(4)Mechanical energy
15. Use of tail as fifth limb by Kangaroo is an example of-
(1) Short term adaptation
(2) Homeostasis
(3) Long term adaptation
(4) Energy transformation
16. Long term adaptation is :-
(1) Inheritable
(2) Formed due to evolution
(3) Permanent (4) All the above
17. Which organ remains functional for a few hours even after clinical death :-
(1) Minerals (2) Proteins
(3) Water (4) Fats
18. 80% of the living material of a cell is made of
(1) Minerals (2) Proteins
(3) Water (4) Fats
19. Sweating is meant for :-
(1) Killing of skin bacteria
(2) Regulation of body temperature
(3) Removal of excess salt
(4) Removal of excess water
20. 99% of living system is formed of four
elements :-
(1) CHOP (2) CHOS
(3) CNOP (4) CHON
ANSWER KEY EXERCISE-2
Q. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
A. 1 1 3 4 4 1 3 1 1 3 4 1 3 2 3 4 4 3
Q. 19 20
A. 2 4
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