MEDIUM
9th West Bengal Board
IMPORTANT
Earn 100

Tannins is a kind of bitter nitrogenous compound soluble in water.

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Important Questions on Excretion

MEDIUM
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 12 - Excretion>EXERCISE>Q 7
By means of transpiration excess water is given out in the form of vapour.
MEDIUM
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 12 - Excretion>EXERCISE>Q 8
The non-essential toxic substances that are produced during cellular metabolism are collectively called secretory materials.
EASY
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 12 - Excretion>EXERCISE>Q 1
What is excretion?
EASY
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 12 - Excretion>EXERCISE>Q 2
Name one excretory product of plant and one excretory product of animal.
MEDIUM
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 12 - Excretion>EXERCISE>Q 3
What is the importance (necessity) of excretion?
EASY
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 12 - Excretion>EXERCISE>Q 4
Name a plant's excretory product which has economical importance.
EASY
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 12 - Excretion>EXERCISE>Q 5
Mention two sources of two important non-nitrogenous excretory products of plants.
EASY
9th West Bengal Board
IMPORTANT
A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 12 - Excretion>EXERCISE>Q 6
Write the name of one economically important excretory product of a plant.