MEDIUM
7th CBSE
IMPORTANT
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Why is oxygen important to blood and to the cells? 

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Important Questions on Transportation in Animals and Plants

MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 11 - Transportation in Animals and Plants>Worksheet FA>Q B
Why is the blood that flows from the lungs to the heart bright red rather than dark red? 
HARD
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 11 - Transportation in Animals and Plants>Worksheet FA>Q B
What happens to blood when it is pumped into the thin-walled blood vessels of the lungs? 
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 11 - Transportation in Animals and Plants>Worksheet FA>Q C
Why is the colour of blood red? Do you think the colour of blood depends on the haemoglobin content? 
MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 11 - Transportation in Animals and Plants>Worksheet FA>Q C
Why is it necessary for plants to transpire? How does transpiration help in the water cycle? 
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 11 - Transportation in Animals and Plants>Worksheet FA>Q C
Which side of the heart has oxygen-rich blood and which side has carbon dioxide-rich blood? 
MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 11 - Transportation in Animals and Plants>Worksheet FA>Q C
Why are valves necessary in heart?
MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 11 - Transportation in Animals and Plants>Worksheet FA>Q C
Dry resins, when soaked in water, swell up. Why does this happen?