Biology Test

Question 1
1 / -0

Venation in monocots is:

A
Pinnate reticulate

B
Palmate reticulate

C
Pinnate parallel

D
Parallel

Question 2
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Study the following statements on alkylating agents as antineoplastics:

[P]: They get converted to azindinium ions and bind to 7th position - N atom of guanine of DNA base pairs

[Q]: Nitrogen mustards and Sulfur mustards belong to this class of drugs

[R]: They inhibit dihydrofolate reductase enzyme thereby inhibiting DNA synthesis

[S]: They chelate electropositive atoms present in the DNA thereby inhibiting DNA uncoiling

Choose the correct combination of statements.

A
P and Q are correct

B
R and S are correct

C
P and S are correct

D
Q and R are correct

Question 3
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The dramatic increase in the population size over a relatively short period is called population explosion. Which of the following are the primary factors for population explosion?

A. Decrease in death rate

B. Development of agriculture

C. Protection from natural risks

D. Increase in longevity

A
Only A and B

B
Only B and C

C
Only A and C

D
Only a and d

Question 4
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Lipid molecule in plasma membrane are arranged in:

A
Scattered

B
Series

C
Alternate

D
Head parallel

Question 5
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The portion of apical meristem that gives rise to xylem tissue is called as:

A
Protoxylem

B
Procambium

C
Metaxytem

D
Tracheid

Question 6

1 / -0

Match the following columns and select the correct option.

	Column-I		Column-II
(a)	Placenta	(i)	Androgens
(b)	Zona pellucida	(ii)	Human Chorionic Gonadotropin (hCG)
(c)	Bulbo-urethral glands	(iii)	Layer of the ovum
(d)	Leydig cells	(iv)	Lubrication of the Penis

	(a)	(b)	(c)	(d)
(1)	(i)	(iv)	(ii)	(iii)
(2)	(iii)	(ii)	(iv)	(i)
(3)	(ii)	(iii)	(iv)	(i)
(4)	(iv)	(iii)	(i)	(ii)

a

b

c

d

Question 7
1 / -0

A genetically engineered micro-organism used successfully in bioremediation of oil spills is a species of:

A
Pseudomonas

B
Trichoderma

C
Xanthomonas

D
Bacillus

Question 8
1 / -0

Robert Koch's postulates to establish a micro- organism as pathogen can be obtained, after his work on _____________.

A
Hydrophobia

B
Anthrax

C
Smallpox

D
Diphtheria

Question 9
1 / -0

Cells that contribute for immune system are:

1. T Lymphocytes

2. Eosinophil

3. B Lymphocytes

4. Dendritic cells

5. Erythrocytes

6. Natural killer cells

A
1,3,4 and 6

B
1,2,4 and 6

C
1,3,5 and 6

D
1,2,5 and 6

Question 10
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Which among the following is incorrect about Parenchyma?

A
The packing tissues in plants that stores food, nutrients and water are called Parenchyma

B
Parenchyma with chlorophyll is called chlorenchyma and parenchyma with air is called aerenchyma

C
The intercellular gaps in Parenchyma are negligible

D
Aerenchyma is mostly present in aquatic plants and chlorenchyma is present in leaves

Submit Test

Biology Test - ...

Question 1

Pinnate reticulate

Palmate reticulate

Pinnate parallel

Parallel

Question 2

P and Q are correct

R and S are correct

P and S are correct

Q and R are correct

Question 3

Only A and B

Only B and C

Only A and C

Only a and d

Question 4

Scattered

Series

Alternate

Head parallel

Question 5

Protoxylem

Procambium

Metaxytem

Tracheid

Question 6

a

b

c

d

Question 7

Pseudomonas

Trichoderma

Xanthomonas

Bacillus

Question 8

Hydrophobia

Anthrax

Smallpox

Diphtheria

Question 9

1,3,4 and 6

1,2,4 and 6

1,3,5 and 6

1,2,5 and 6

Question 10

The packing tissues in plants that stores food, nutrients and water are called Parenchyma

Parenchyma with chlorophyll is called chlorenchyma and parenchyma with air is called aerenchyma

The intercellular gaps in Parenchyma are negligible

Aerenchyma is mostly present in aquatic plants and chlorenchyma is present in leaves

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