NSO Level 1- Science Olympiad (SOF) Class 7: Questions 139 - 141 of 593

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Question number: 139

» Nutrition in Plants and Animals

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MCQ▾

Question

The (i) secretes Amylase in (ii) . Amylase breaks up (iii) into (iv) and dextrin, which is further hydrolysed by other enzymes in small intestine. It is a mix gland, which secretes hormones like (v) .

Select the option which correctly completes the above paragraph.

Choices

Choice (4) Response

a.

i. Liver

ii. Spleen

iii. Protein

iv. Peptides

v. Insulin

b.

i. Liver

ii. Duodenum

iii. Protein

iv. Peptides

v. Insulin

c.

i. Pancreas

ii. Duodenum

iii. Starch

iv. Maltose

v. Insulin

d.

i. Pancreas

ii. Spleen

iii. Fats

iv. Fatty acids & Glycerol

v. Insulin

Question number: 140

» Nutrition in Plants and Animals

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MCQ▾

Question

Hydrochloric acid is secreted in stomach to digest complex molecules along with this the acid is strong enough to kill the bacteria that enter the stomach with food. How is it possible that having such a corrosive action HCl does not damage the inner lining of the stomach?

Choices

Choice (4) Response

a.

The glands in the stomach secrete some bases that neutralize the effect of HCl.

b.

The inner lining of stomach is thick enough to prevent corrosive action of HCl.

c.

The inner lining secretes mucus which forms a protective layer over it.

d.

All of the above

Question number: 141

» Transportation in Plants and Animals

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Match List-Ⅰ List-Ⅱ▾

Question

Match Column I and Column II & Select the correct option from the codes given below.

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Mosquito is an endoparasite.

(i)

True

(B)

Cellulose cannot be digested in human digestive system.

(ii)

False

(C)

Stomata has role of gas exchange in photosynthesis.

(iii)

True

(D)

Amylase is an enzyme which acts on protein.

(iv)

False

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iv)
  • (iii)
  • (ii)
  • (i)

b.

  • (i)
  • (iv)
  • (ii)
  • (iii)

c.

  • (ii)
  • (i)
  • (iii)
  • (iv)

d.

  • (iv)
  • (iii)
  • (iii)
  • (iv)

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