Q:

Accumulation of which one of the following in the leads to cramp?

A) Lactic acid	B) Ethanol
C) Pyruvic acid	D) Glucose

Answer & Explanation Answer: A) Lactic acid

Explanation:

Muscle cramping is a common problem encountered by athletes and non athletes alike. Defined as painful involuntary skeletal muscle contractions, cramps may be categorized as either non exercise related or exercise related. Traditionally, such cramping was believed to arise from dehydration, electrolyte imbalances (including magnesium, potassium and sodium),accumulation of lactic acid, or low cellular energy levels.

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Filed Under: Biology
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Q:

Which of the following vitamins help in the absorption of calcium?

A) Vitamin A	B) Vitamin D
C) Vitamin B	D) Vitamin C

Answer & Explanation Answer: B) Vitamin D

Explanation:

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Q:

Which of the following is not correct?

A) Members of Chlorophyceae are commonly called green algae	B) Members of Phaeophyceae are commonly called red algae
C) Members of Rhodophyceae are commonly called red algae	D) Members of Phaeophyceae are commonly called brown algae

Answer & Explanation Answer: B) Members of Phaeophyceae are commonly called red algae

Explanation:

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Q:

Read each sentence to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. If the sentence is correct as it is mark 'no error' as the answer.Jaitely announced a waivered of the service charge (a)/ on e-tickets and spoke about a number of steps (b)/ to improve passenger amenities (c)/ such as a ‘coach mitra’ facility. (d)/ No error (e).

A) Jaitely announced a waivered of the service charge	B) on e-tickets and spoke about a number of steps
C) to improve passenger amenities	D) such as a ‘coach mitra’ facility

Answer & Explanation Answer: A) Jaitely announced a waivered of the service charge

Explanation:

'waiver' should be used to make the sentence correct.

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Q:

Which of the following is NOT a property of acids?

A) Acids form salts with bases	B) Acids have bitter taste
C) Acids have sour taste	D) Acids turn blue litmus red

Answer & Explanation Answer: B) Acids have bitter taste

Explanation:

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Q:

The essential organs in a flower for reproduction are

A) the stamen and pistil	B) the sepal and stamen
C) the sepal and petal	D) the petal and pistil

Answer & Explanation Answer: A) the stamen and pistil

Explanation:

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Q:

____ tissue changes the diameter of a blood vessel.

A) Heart	B) Muscle
C) Epithelial	D) Bone

Answer & Explanation Answer: B) Muscle

Explanation:

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Filed Under: Biology
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Q:

Which part of the brain plays an important role in motor control?

A) Cerebellum	B) Cerebrum
C) Medulla	D) Pons

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