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Question-1
Sugar formed during photosynthesis combines with nitrogen. What is this product called as?
(A)
Starch
(B)
Cellulose
(C)
Amino acids
(D)
Vitamins
Question-2
Which of the statements is correct?
(A)
A rise in temperature will cause a decrease in the rate of photosynthesis
(B)
There are less stomata in the lower surface.
(C)
There are more chloroplasts in the lower cells.
(D)
The brighter the light, the faster will be the rate of photosynthesis.
Question-3
What will happen to glucose soon after photosynthesis?
(A)
Glucose is broken down to sucrose
(B)
Glucose molecules are quickly built up into starch molecules
(C)
Glucose molecules are quickly built up into protein molecules
(D)
Glucose molecules are quickly built up into amino acid molecules
Question-4
After photosynthesis, hundreds of glucose molecules join together to from a long chain of molecule of X. What is X?
(A)
Amino acids
(B)
Cellulose
(C)
Starch
(D)
Vitamins
Question-5
The oxygen molecule in glucose formed during photosynthesis comes from:
(A)
Water
(B)
Organic acids
(C)
CO
2
(D)
Atmosphere
Question-6
Why do plants need nitrate ions?
(A)
To make fatty acids
(B)
To make proteins
(C)
To make starch for storage
(D)
To make glucose
Question-7
Small green structures present in the cytoplasm of the leaf cells.
(A)
Chlorophyll
(B)
Chloroplast
(C)
Chemoplast
(D)
Mitochondria
Question-8
The waste by-product of photosynthesis.
(A)
Carbon dioxide
(B)
Oxygen
(C)
Glucose
(D)
Hydrogen
Question-9
Photosynthesis can be summarised by which word equation?
(A)
Carbon dioxide + oxygen → glucose + water
(B)
Oxygen + glucose → carbon dioxide + water
(C)
Carbon dioxide + water → glucose + oxygen
(D)
Carbon dioxide + glucose → Oxygen + water
Question-10
A plant is showing discoloured and mottled leaves. This may be due to the deficiency of which of the following salts?
(A)
Nitrates
(B)
Phosphates
(C)
Potassium
(D)
Sodium
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Cambridge Secondary Grade 9
IGCSE
Practice in Related Chapters
The Interdependence of Living Organisms
Feeding
Keeping Healthy
Transport in Plants
Classification
Cells and Tissues
Movement in and out of Cells
Personal Health
Animal Nutrition
Reproduction
Sensitivity
Cells the Building Blocks
Genetics
The Skeleton, Muscles and Movement
A Sexual Reproduction and Cloning Plants
The Senses
Survival
Co-ordination
Energy for Respiration
The Chemicals of Living Cells
How Substances Get In and Out of Cells
Plants for Food
Photosynthesis and Nutrition in Plants
Plant Structure and Function
Food and Diet
The Human Impact on the Environment
Digestion, Absorption and Use of Food
The Blood Circulatory System
Breathing
Excretion and the Kidneys
Human Reproduction
Classification
Conservation
Micro Organisms
Reproduction in Flowering Plants
Movement and Locomotion
Growth and Development
Disease: causes, transmission and control
Ecosystems
Population
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