General Knowledge

Biology - Section 1

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Biology - Section 1

Practice and master this topic with our carefully crafted questions.

10 Questions
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Question 51
Plants synthesis protein from

A
starch
B
sugar
C
amino acids
D
fatty acids
Correct Answer: Option C

No answer description available for this question.

Question 52
Plants absorb dissolved nitrates from soil and convert them into

A
free nitrogen
B
urea
C
ammonia
D
proteins
Correct Answer: Option A

No answer description available for this question.

Question 53
Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with

A
all gymnosperms, except conifers
B
only angiosperms
C
only conifers
D
angiosperms and all gymnosperms except conifers
Correct Answer: Option C

No answer description available for this question.

Question 54
One of the following is not a function of bones.

A
Place for muscle attachment
B
Protection of vital organs
C
Secretion of hormones for calcium regulation in blood and bones
D
Production of blood corpuscles
Correct Answer: Option C

No answer description available for this question.

Question 55
Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes

A
tetanus
B
influenza
C
cholera
D
typhoid
Correct Answer: Option C

Vibrio cholerae (also Kommabacillus) is a gram negative comma-shaped bacterium with a polar flagellum that causes cholera in humans

Question 56
Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of

A
hormones
B
enzymes
C
proteins
D
vitamins
Correct Answer: Option B

No answer description available for this question.

Question 57
Mutation is

A
a factor responsible for plant growth
B
a change which affects the offspring of F2 generation only
C
a change that is inherited
D
a change which affects the parents
Correct Answer: Option C

No answer description available for this question.

Question 58
Pollination by wind is called

A
anemophily
B
hydrophily
C
zoophily
D
entomophily
Correct Answer: Option A

No answer description available for this question.

Question 59
Pollen grains in plants are produced in

A
roots
B
leaves
C
flower
D
stem
Correct Answer: Option C

No answer description available for this question.

Question 60
Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?

A
By cyanobacteria
B
By electrical discharges in the atmosphere
C
By industrially synthesised fertilizer
D
By denitrification
Correct Answer: Option D

No answer description available for this question.

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