Olympiad Test: Nutrition In Plants And Animals -2

QUESTION: 1

An adult has ______ teeth.

A.
20
B.
24
C.
28
D.
32

Solution:

QUESTION: 2

Match the following:

A.
1 - B, 2 - D, 3 - A, 4 - C
B.
1 - C, 2 - D, 3 - B, 4 - A
C.
1 - C, 2 - B, 3 - D, 4 - A
D.
1 - B, 2 - A, 3 - D, 4 - C

Solution:

QUESTION: 3

Cuscuta lives as a parasite on

A.
pipal
B.
mango
C.
Mirabel
D.
mulberry

Solution:

QUESTION: 4

Xerophytes have very small leaves or spines to

A.
reduce loss of water
B.
reduce volume
C.
reduce weight
D.
look beautiful

Solution:

QUESTION: 5

A plant was kept in a dark room for a week. When its leaves are tested with iodine solution, it did not show the presence of starch. From this experiment it can be concluded that ______ is required for photosynthesis.

A.
iodine
B.
starch
C.
sunlight
D.
darkness

Solution:

Sunlight is essential for photosynthesis as the plant is kept in dark room for a week. There is a lack of sunlight, hence photosynthesis has not taken place.

QUESTION: 6

Which of the following is a soft material in the tooth?

A.
root
B.
pulp
C.
dentine
D.
enamel

Solution:

Pulp is the soft material in the tooth. It is richly supplied with blood vessels and nerves.

QUESTION: 7

Dentine is

A.
hard, protective covering on the tooth
B.
the soft, invisible covering present in a tooth
C.
the nerve that connects tooth and the brain
D.
the cavity which contains nerves and blood vessels in a tooth

Solution:

QUESTION: 8

The study of teeth is called

A.
dermatology
B.
neurology
C.
cardiology
D.
dentistry

Solution:

The term dentistry comes from dentist, which comes from French dentiste, which comes from the French and Latin words for tooth. The term for the associated scientific study of teeth is odontology – the study of the structure, development, and abnormalities of the teeth.

QUESTION: 9

Match the columns:

A.
1 - D, 2 - A, 3 - E, 4 - B, 5 - C
B.
1 - D, 2 - E, 3 - B, 4 - A, 5 - C
C.
1 - C, 2 - A, 3 - D, 4 - E, 5 - B
D.
1 - B, 2 - C, 3 - A, 4 - E, 5 - D

Solution:

QUESTION: 10

Plants give out water through the pores present under their leaves. The plants living in deserts need to reduce the loss of water because water is very scarce in deserts. Which of the following is an adaptation developed by the desert plants to manage the above situation?