CIE Biology Paper-2: Specimen Questions 9 - 11 of 103

Question number: 9

MCQ▾

Question

Which part is known as left ventricle?

Figure shows structure of heart

Figure shows structure of heart

Above figure shows different parts of heart

Choices

Choice (4) Response
a.

C

b.

D

c.

A

d.

B

Answer

d.

Explanation

B portion is left ventricle. The left ventricle is one of four chambers of the heart. It is located in the bottom left portion of the heart below the left atrium, separated by the mitral valve.

Question number: 10

MCQ▾

Question

Which part is known as primary root?

Figure shows structure of root

Figure shows structure of root

Above figure is showing structure of root with its different parts

Choices

Choice (4) Response
a.

Part D

b.

Part B

c.

Part C

d.

Part A

Answer

d.

Explanation

Part A is primary root. It is the thickest. It grows downwards and then divided into its sub parts.

Question number: 11

MCQ▾

Question

Which statement describes passive transport?

Choices

Choice (4) Response
a.

Phagocytosis, pinocytosis, sodium/potassium pump are the examples of passive transport

b.

Transport occurs from a low concentration of solute to high concentration of solute

c.

In passive transport Movement of molecules DOWN the concentration gradient occur

d.

It requires cellular energy

Answer

c.

Explanation

Passive transport is a movement of biochemical and other atomic or molecular substances across cell membranes without need of energy input.

Image shows mechanism of passive transport

Image shows mechanism of passive transport

Above image shows a movement of biochemical molecules across cell membranes without need of energy

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