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Question-1
The flow of water up the vessels in the vascular bundle is called:
(A)
Osmotic flow
(B)
Turgor pressore
(C)
Diffusion gradient
(D)
Transpiration stream
Question-2
In translocation, which is the source?
(A)
Leaves
(B)
Regions of plant using food
(C)
Atmosphere
(D)
Soil
Question-3
The movement of water and salts in the xylem.
(A)
Always upwards
(B)
Always downwards
(C)
Often upwards and sometimes downwards
(D)
Both upward and downward equally
Question-4
How does water pass through the leaves in to the atmosphere?
(A)
Diffusion
(B)
Gravity
(C)
Suction
(D)
Turgor pressure
Question-5
In transpiration, which of the following is the source and sink respectively?
(A)
Soil and leaves
(B)
Leaves and soil
(C)
Soil and atmosphere
(D)
Leaves and atmosphere
Question-6
Which salt is used by plants to make proteins?
(A)
Nitrates
(B)
Phosphates
(C)
Chlorides
(D)
Sodium
Question-7
Name the tissue that water flows through in the stem to reach a leaf.
(A)
Xylem
(B)
Phloem
(C)
Chloroplast
(D)
Cell sap
Question-8
The insecticides and pesticides sprayed on leaves are :
(A)
Systemic
(B)
Organic
(C)
Cytological
(D)
Harmless
Question-9
Which of the following is correct?
(A)
In still air, transpiration will slow down.
(B)
In still air, transpiration will increase.
(C)
In moving air, transpiration decreases.
(D)
In moving air, the region around the leaf is saturated.
Question-10
Why does soil water pass through the root hair into the cell sap?
(A)
Cytoplasm of the root hair is fully permeable to water
(B)
Soil water is more concentrated than cell sap
(C)
Soil water is more dilute than cell sap
(D)
All of the above
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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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