Exams Questions and Answers

Q:

Along the path of the vas deferens which glands add their secretions in the sperms?

I. Prostate

II. Seminal vesicles

III. Scrotum

A) Only I and III	B) Only I and II
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: B) Only I and II

Explanation:

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Filed Under: Biology
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1 49880

Q:

A sarcomere is best described as a

A) fixed structural unit within a myofibril bounded by Z lines.	B) moveable structural unit within a myofibril bounded by H zones.
C) moveable structural unit within a myofibril bounded by Z lines.	D) fixed structural unit within a myofibril bounded by A bands.

Answer & Explanation Answer: C) moveable structural unit within a myofibril bounded by Z lines.

Explanation:

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Filed Under: Biology
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1 49878

Q:

Which one of the following organisms is dependent on saprophytic mode of nutrition?

A) Agaricus	B) Ulothrix
C) Riccia	D) Cladophora

Answer & Explanation Answer: A) Agaricus

Explanation:

Saprophytic fungi feed on dead plant and animal remains. Many are extremely beneficial, breaking down this organic material into humus, minerals and nutrients that can be utilised by plants. Agaricus is one among them.

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Filed Under: Biology
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2 49852

Q:

152, 124, 96, 69, 40

Find the odd man out?

A) 124	B) 96
C) 69	D) 40

Answer & Explanation Answer: C) 69

Explanation:

The given number series is 152, 124, 96, 69, 40

152

152 - 28 = 124

124 - 28 = 96

96 - 28 = 68 (not 69)

68 - 28 = 40

Hence, the odd man in the given number series is 69.

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Filed Under: Odd Man Out
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13 49831

Q:

Elements having same atomic numbers but different mass number are called ______.

A) isotones	B) Isotopes
C) isomopes	D) isobar

Answer & Explanation Answer: B) Isotopes

Explanation:

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Filed Under: Chemistry
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0 49795

Q:

Factors that may influence enzyme activity?

A) pH	B) Substrate concentration
C) Temperature	D) All the above

Answer & Explanation Answer: D) All the above

Explanation:

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Filed Under: Chemistry
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0 49725

Q:

Statement :

The byproducts obtained from animals such as hairs, skins, horns, etc. contain at least 45 per cent food protein. Indian scientists have developed methods to segregate 50 per cent of this protein. They have used an enzyme developed in Russia for destruction of soya-proteins.

Conclusions:

A. Indian scientists cannot develop enzymes.

B. If a suitable method involving less cost is developed then many more food protein would be obtained.

A) Only A follows	B) Only B follows
C) Neither A nor B follows	D) Both A & B follows

Answer & Explanation Answer: C) Neither A nor B follows

Explanation:

There is no indication that Indian scientists are incapable of developing enzymes. There could be any number of reasons why Indian scientists used Russian enzymes.

So conclusion A does not follow.

In addition, cost is not discussed in the passage at all. There is no mention of a correlation between cost and extraction of proteins.

Thus, conclusion B does not follow either.

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Filed Under: Statement and Conclusions
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4 49718

Q:

What is the value of 'x' in $2 \sqrt{3 x} - 5 \sqrt{27 x} + \sqrt{108 x} = - 21 ?$

A) 0.33	B) 1
C) 3	D) 9

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