NSO Level 1- Science Olympiad (SOF) Class 7: Questions 145 - 147 of 597

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Question number: 145

» Nutrition in Plants and Animals

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MCQ▾

Question

Given below is the list of different organs of digestive system along with their functions in random order. Select an option which has the correct order.

  1. Absorption of nutrients from digested food in small intestine.
  2. Breakdown of carbohydrates by salivary amylase in mouth.

  3. Acidic hydrolysis of complex molecules in stomach.

  4. Movement of food in oesophagus in a wave like motion called “peristalsis” to stomach.

Choices

Choice (4)Response

a.

(3), (2), (4), (1)

b.

(2), (4), (3), (1)

c.

(4), (2), (1), (3)

d.

(1), (2), (3), (4)

Question number: 146

» Nutrition in Plants and Animals

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MCQ▾

Question

The structure labelled X, Y and Z

The Structure Labelled X, Y and Z

Which of the following is true for the structure labelled Y?

Choices

Choice (4)Response

a.

Food contents are completely absorbed into the blood stream.

b.

Absorbs water from the remaining indigestible food.

c.

Sends the indigestible food to X.

d.

Both b. and c. are correct

Question number: 147

» Nutrition in Plants and Animals

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MCQ▾

Question

It is proved that the chemical fertilizers are harmful. So, as an alternate to this problem which of the following options can be used to increase the fertility of farmlands?

Choices

Choice (4)Response

a.

Grow pea plants in the field.

b.

Grow eucalyptus in the field.

c.

Both a. and b. are correct

d.

None of the above

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