IGCSE Biology Paper-2: Specimen Questions with Answers 81 - 83 of 103

Question number: 81

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Question

Cell walls are present in some cells. Match the correct statement for cell walls

Choices

Choice (4) Response

a.

In animals, cell wall are present outside the cell membrane and in plants, cell wall is absent

b.

In animal cell wall absent and in plants cell wall is present outside the cell membrane

c.

In animal cell wall absent and in plants cell wall is present inside the cell membrane

d.

In animals’ cell wall absent and in plants cell wall is absent

Answer

b.

Explanation

The cell wall is a tough, flexible and layer that surrounds mainly plant cells. It surrounds the cell membrane and provides these cells with structural support and protection. Such type of cell walls are not present in animal cell.

Question number: 82

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Question

Which is not an example of natural disaster?

Choices

Choice (4) Response

a.

Earthquake

b.

Flood

c.

War

d.

Volcanic eruption

Answer

c.

Explanation

Anthropogenic hazards or man-made disaster are those problems caused directly or indirectly by human action or inaction. War is a conflict between relatively large groups of people, which involves physical force inflicted by the use of weapons.

Question number: 83

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Question

The diagram shows two different body parts. Label X and Y.

The diagram shows two different body parts

The Diagram Shows Two Different Body Parts

The diagram shows two different body parts of human being. Label X and Y.

Choices

Choice (4) Response

a.

X- Digestive system and Y-Renal system

b.

X- Circulatory and Y- Respiratory

c.

X- Respiratory and Y- Circulatory

d.

X-Lymphatic and Y- Respiratory

Answer

c.

Explanation

The part X is respiratory system, which utilizes the tiny alveoli in the lungs, which provide a large surface area to take in oxygen. Part y is Circulatory system, which pushes the blood around the body with oxygen and nutrients for the cells and removes waste.