CIE Biology Paper-3: Specimen Questions 113 - 117 of 230

Question number: 113

Short Answer Question▾

Write in Short

Draw the carbon cycle

Explanation

Image shows carbon cycle

Image shows carbon cycle

In given figure carbon is cycle in plants, animals, microorganisms, soil and atmosphere

Question number: 114

Short Answer Question▾

Write in Short

Through the action of which enzyme maltose hydrolyzed into glucose.

Conversion of maltose to glucose

Conversion of maltose to glucose

Understanding the conversion of maltose to glucose

Explanation

Maltose hydrolyzed into glucose through the action of the enzyme maltase.

Question number: 115

Short Answer Question▾

Write in Short

Desertification occurs in many parts of the world.

State two reasons why desertification is carried out.

Explanation

The main cause of desertification is removal of vegetation due to drought, climate factor and over grazing. Unprotected, dry soil surfaces blow away due to wind or washed away by floods.

Passage

image of sunligth and trees

image of sunligth and trees

shows image of light energy of sun light is converted into chemical energy.

Question number: 116 (1 of 2 Based on Passage) Show Passage

MCQ▾

Question

Which process is shown in the diagram?

Choices

Choice (4) Response
a.

Proline synthesis

b.

Glycolysis Process

c.

Photosynthesis

d.

Respiration

Answer

c.

Explanation

Photosynthesis is a process in which light energy of sun light is converted into chemical energy.

Question number: 117 (2 of 2 Based on Passage) Show Passage

MCQ▾

Question

The food prepare by photosynthesis is called as

Choices

Choice (4) Response
a.

Vitamins

b.

sugar

c.

Protein

d.

Lipids

Answer

b.

Explanation

-Plants make their food by the process of photosynthesis and their prepare food is sugar or glucose.

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