IGCSE Biology Paper-2: Specimen Questions with Answers 59 - 61 of 103

Question number: 59

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Question

Following are the pictures of

Figure shows some small granules

Figure Shows Some Small Granules

Figure shows small granules found in the leaves, roots, stems, fruits and seeds of plants

Choices

Choice (4) Response

a.

Protein molecules

b.

Starch grain

c.

Lipid membrane

d.

None of the above

Answer

b.

Explanation

Starch grains are small granules found in the leaves, roots, stems, fruits and seeds of plants. These grains help as energy reserves for plants.

Question number: 60

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Question

Normal value of hemoglobin in female is-

Choices

Choice (4) Response

a.

8.9 - 10.2 (g/dL)

b.

11.7 - 15.7 (g/dL)

c.

4.5 - 6.6 (g/dL)

d.

15.2 - 19.7 (g/dL)

Answer

b.

Explanation

Hemoglobin is a protein in red blood cells that carries oxygen. The hemoglobin test is a blood test that measures how much hemoglobin is present in blood. Normal results for adults vary, but in general are:

Male: 13.8 to 17.2 grams per deciliter (g/dL)

Female-11.7 - 15.7 grams per deciliter (g/dL)

Question number: 61

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Question

To protect the host from environmental agents such as microbes or chemicals, thereby preserving the integrity of the body. It is the function of-

Choices

Choice (4) Response

a.

Immune system

b.

Respiratory system

c.

Clotting

d.

Digestive system

Answer

a.

Explanation

The immune system is a system of many biological structures and methods within an entity that protects against disease.