Biology Test 3

Total Questions: 25

1 - Sweat glands occur in greatest number in the skin of the:

A ) Forehead
B ) Armpits ✅
C ) Back
D ) Palm of hand

3 - Which of the following is not in the inner ear?

A ) Eustachian tube ✅
B ) Cochlea
C ) Semicircular canals
D ) Sacculus

4 - In what form in the food in onion stored?

A ) Sugar
B ) Cellulose ✅
C ) Starch
D ) Protein

5 - The plant part rich in carbohydrates is

A ) Potato tuber ✅
B ) Spinach leaf
C ) Onion
D ) Orange fruit

6 - Green colour of plants is due to the presence of

A ) Sodium
B ) Phosphorus
C ) Chlorophyll ✅
D ) Iron

7 - Which of the following plants bears no fruits but produces seeds?

A ) Groundnut
B ) Sugarcane
C ) Cycas ✅
D ) Almond

9 - Bryophytes are

A ) Vascular plants
B ) Non-vascular plants ✅
C ) Tracheophytes
D ) Prokaryotes

11 - During photosynthesis green plants build up

A ) Carbohydrates ✅
B ) Proteins
C ) Fats
D ) All of these

13 - Photosynthesis is a bio-chemical process for the transfer of solar energy to

A ) Nitrogen cycle
B ) Hydraulic cycle
C ) Petrological cycle
D ) Food chain cycle ✅

14 - Ginger is an example of

A ) Tuber
B ) Rhizome ✅
C ) Bulb
D ) Corn

15 - The earliest organisms that appeared on the surface of earth were probably

A ) Autotrophs
B ) Symbionts ✅
C ) Heterotrophs
D ) None of the above

17 - Bamboo is a

A ) Herb
B ) Grass ✅
C ) Shrub
D ) Tree

18 - Cork cells are impervious to water because of the presence of

A ) Cellulose
B ) Cutin
C ) Lignin
D ) Suberin ✅

19 - Fern belongs to

A ) Bryophytes
B ) Pterophyta ✅
C ) Anthophyta
D ) None of these

20 - In which section of the plant does photosynthesis take place?

A ) Roots
B ) Stem
C ) Leaves ✅
D ) Flowers

21 - Photosynthesis takes place faster in

A ) Yellow light
B ) White light
C ) Red light ✅
D ) Darkness

22 - Age of a tree can be determined by

A ) Counting the number of rings in the stem ✅
B ) Counting the number of leaves
C ) Counting the number of branches
D ) Measuring the size of the tree

23 - Protein which acts as hormone is?

A ) Casein
B ) Oxytocin ✅
C ) Trypsin
D ) Keratin

24 - During the day time plants

A ) Take in oxygen and give out carbon dioxide
B ) Take in carbon dioxide and give out oxygen ✅
C ) Take in nitrogen and give out oxygen
D ) Take in carbon dioxide and give out nitrogen

25 - Plants receive their nutrients mainly from

A ) Chlorophyll
B ) Atmosphere
C ) Light
D ) Soil ✅