Biology Test

Question 1
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In which one of the following options the two examples are correctly matched with their particular type of immunity?

A
Polymorphonuclear leukocytes and monocytes, Type of immunity : Cellular barriers

B
Anti - tetanus and anti - snake bite injections, Type of immunity : Active immunity

C
Saliva in mouth and tears in eyes, Type of immunity : Physical barriers

D
Mucus coating of epithelium lining the urinogenital tract and the HCI in stomach, Type of immunity : Physiological barriers

Question 2
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Read the following statements regarding archaebacteria.

I. Their cell wall lacks peptidoglycan.

II. They contain membrane bound organelles.

III. These have distinct ribosomal RNA sequence.

IV. Lipid in cell membrane of archaebacteria have different structure than those in all other organisms.

Choose the incorrect option.

A
I and II

B
Only II

C
Only IV

D
III and IV

Question 3
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Function of ADH (Antidiuretic hormone) is:

A
Water reabsorption

B
Water excretion

C
Na⁺ absorption

D
K⁺ secretion

Question 4
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Rules of conduct that may be used to regulate our activities in relation to the biological world is called:

A
Bioethics

B
Biowar

C
Biopatent

D
Biopiracy

Question 5
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Usnic acid is an antibiotic obtained from:

A
Fungi

B
Bacteria

C
Lichens

D
Algae

Question 6
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In RNA, thymine is replaced by__________.

A
Guanine

B
Uracil

C
Both (A) and (B)

D
None of these

Question 7
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Both corpus luteum and macula lutea are:

A
Found in human ovaries

B
Found in human ovaries

C
Characterized by a yellow colour

D
Contributory in maintaining pregnancy

Question 8
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Directions For Questions

Direction: In the following question a statement of assertion is given and a corresponding statement of reason is given just below it. Mark the correct answer.

...view full instructions

Assertion: Megaspore mother cell undergoes meiotic division.

Reason: All four megaspres form female gametophyte.

A
Both assertion and reason are true and reason is a correct explanation of the assertion.

B
Both assertion and reason are true but reason is not a correct explanation of the assertion.

C
Assertion is true but Reason is false.

D
Both Assertion and Reason are false.

Question 9
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Directions For Questions

Direction: In the following question a statement of assertion is given and a corresponding statement of reason is given just below it. Mark the correct answer.

...view full instructions

Assertion: Water is not required for fertilization process in ferns.

Reason: Malic acid of Archegonial neck attracts antherozoids.

A
Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

B
Both the assertion and reason are true but the reason is not a correct explanation of the assertion.

C
The assertion is true but the reason is false.

D
The assertion is false and the reason is true.

Question 10
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The fungus with bioluminescent characteristics is:

A
Claviceps purpurea

B
Omphalotus olearius

C
Cordyceps sinensis

D
Trametes versicolor

Submit Test

Biology Test - ...

Question 1

Polymorphonuclear leukocytes and monocytes, Type of immunity : Cellular barriers

Anti - tetanus and anti - snake bite injections, Type of immunity : Active immunity

Saliva in mouth and tears in eyes, Type of immunity : Physical barriers

Mucus coating of epithelium lining the urinogenital tract and the HCI in stomach, Type of immunity : Physiological barriers

Question 2

I and II

Only II

Only IV

III and IV

Question 3

Water reabsorption

Water excretion

Na+ absorption

K+ secretion

Question 4

Bioethics

Biowar

Biopatent

Biopiracy

Question 5

Fungi

Bacteria

Lichens

Algae

Question 6

Guanine

Uracil

Both (A) and (B)

None of these

Question 7

Found in human ovaries

Found in human ovaries

Characterized by a yellow colour

Contributory in maintaining pregnancy

Question 8

Both assertion and reason are true and reason is a correct explanation of the assertion.

Both assertion and reason are true but reason is not a correct explanation of the assertion.

Assertion is true but Reason is false.

Both Assertion and Reason are false.

Question 9

Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

Both the assertion and reason are true but the reason is not a correct explanation of the assertion.

The assertion is true but the reason is false.

The assertion is false and the reason is true.

Question 10

Claviceps purpurea

Omphalotus olearius

Cordyceps sinensis

Trametes versicolor

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Question Analysis

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Na⁺ absorption

K⁺ secretion