Biology Practice Questions Set 9

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For India's Top Government Exams

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Which one of the following plants are used for green manuring in India?
*

1 point

Wheat

Sunn hemp

Cotton

Rice

If excess fertilizer is applied to a plant without water, the plant will
*

1 point

be stunted in growth

develop modifications

die due to plasmolysis

remain unaffected

Which among the following are the major reasons behind preferring the eucalyptus tree in the planned forestation process?

1. Plantation grows very fast.
2. Plantation makes the soil more fertile.
3. Wood from the eucalyptus tree is easily converted into pulp for the paper industry.
Select the correct answer using the codes given below.

1 point

1 and 2

1 and 3

2 and 3

All of these

Tips of leaves in grasses and common garden plants show water drops in the early morning hours. This water accumulation is obtained from ___ *

1 point

atmosphere

stomata

vascular bundles

hydathodes

Itching due to insect bites is caused by
*

1 point

formic acid

acetic acid

lactic acid

maleic acid

Consider the following statements

1. A person with myopia can see distant objects distinctly but cannot see nearby objects clearly.
2. A person with hypermetropia cannot see distant objects clearly.
3. A person with presbyopia can see nearby objects without corrective glasses.
Which of the statements given above is/are not correct?

1 point

1, 2 and 3

1 and 2

1 and 3

Only 3

Which one of the following is a major source of sugar?
*

1 point

Watermelon

Beetroot

Sugarcane

Dates

Which one among the following plants cannot be multiplied by cuttings?
*

1 point

Rose

Bryophyllum

Banana

Marigold

Consider the following statements

1. Iodine is necessary for the thyroid gland to make adrenaline.
2. Iodine deficiency leads to goiter in human beings.
3. Iodine is secreted by the pancreas and helps in regulating cholesterol levels.
Which of the statements given above is/are correct?

1 point

1, 2 and 3

1 and 2

1 and 3

Only 2

The vitamin(s), which is/are generally excreted in the urine, is/are ____
*

1 point

vitamin-A

vitamin-B

vitamin-E

vitamin-D and K

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