1.The growth and reproduction are mutually exclusive events in
a) Plants only
b) Animals only
c) Higher animal and plants
d) Primitive organisms
Explanation: The growth and reproduction are mutually exclusive events in higher animal and plants
2. Reproduction cannot be an all-inclusive defining characteristic of living organisms because
a) All living organism do not show growth.
b) Many organism do not reproduce.
c) Non-living things show reproduction.
d) All living organism show small period of reproductive phase in their life.
Explanation: Reproduction cannot be an all-inclusive defining characteristic of living organisms because many organism do not reproduce.
3.Living organism shows
a) Self-replication
b) Evolution
c) Self-regulation and response to external stimuli
d) All of these
Explanation: All of these
4. The sum total of chemical reactions occurring in our body is called
a) Metabolism
b) Homeostasis
c) Catabolism
d) Anabolism
Explanation: The sum total of chemical reactions occurring in our body is called Metabolism.
5. Select the incorrect statement from the following.
(A) NBRI is situated at Lucknow.
(B) Plant families like Convolvulaceae and Solanaceae are included in the order polymoniales
mainly based on the floral characters.
(C) All living organisms such as from present, past and future are linked to one another by the
sharing of the common genetic material but to varying degree.
(D) The order Solanum, Datura and Petunia are placed in family Solanaceae.
a) (A) only
b) (B) and (D) only
c) (D) only
d) (B) and (C) only
Explanation: (D) only
6. Which of the following statement is incorrect?
a) All plants, animals, fungi and microbes exhibit metabolism.
b) Interactions among the molecular components of the organelles result into the properties
of cell organelles.
c) Properties of cellular organelles are present in the molecular constituents of the organelles.
d) Celluar organization of the body is the defining feature of life forms.
Explanation: "Properties of cellular organelles are present in the molecular constituents of the organelles". This is incorrect.
7. Properties of organs are
a) Present in the constituent cells
b) Due to different cells in them
c) Due to their similar origin
d) A result of interactions among the constituent tissues
Explanation: Properties of organs are a result of interactions among the constituent tissues
8. Which two points are known as the twin characteristics of growth?
(1) Increase in mass
(2) Metabolism
(3) Increase in the number of individuals
(4) Sense of environment
a) (1) and (2)
b) (1) and (4)
c) (2) and (3)
d) (1) and (3)
Explanation: (1) and (3)
9. Growth by cell division occurs _____________ in plants and _____________ in animals
a) Continuously, only up to a certain age
b) Only up to a certain age, continuously
c) Continuously, never
d) Continuously, continuously
Explanation: Growth by cell division occurs continuously in plants and only up to a certain age in animals
10. Which set of organisms multiply through fragmentation?
a) Planaria, hydra, yeast
b) Echinoderms, fungi, bacteria
c) Fungi, filamentous algae, protonema of mosses
d) Amoeba, hydra, virus
Explanation: Fungi, filamentous algae, protonema of mosses