NCERT Class 7 Science Chapter 1 Nutrition in Plants Extra Questions and Answers
Class 7 Science Chapter 1 Extra Inside Questions and Answers – Nutrition in Plants. Here in this Page Class VII Students can Learn Extra Questions & Answer 1st Chapter Science fully Inside.
We Provided Here Nutrition in Plants Science Chapter 1 Long Answer Type Question, MCQ Questions & Answer, Short Answer Type Questions (2 or 3 marks), and Very Short answer Type Question (1 marks).
Class 7 Science Chapter 1 Extra Question with Answer – Nutrition in Plants
Science Chapter 1 Nutrition in Plants Class 7 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers.
Fill in the Blanks:
a) The Proteins contain ____.(Nitrogen)
b) The insect-eating plants are called ____.(Insectivorous plants)
c) ____ gas is important for photosynthesis.(Carbon dioxide)
d) Most of the pulses are obtained from ____ plants.(Leguminous)
Multiple Choice Questions:
a) Cuscuta is called the ____?
a) Autotroph b) Parasite
Ans. b) Parasite
b) The green pigment of the leaves called ____?
a) Cytoplasm b) Chlorophyll
Ans. b) Chlorophyll
c) ____ is the ultimate source of energy for all organisms?
a) Plant b) Sun
Ans. b) Sun
d) Plants are called _____?
a) Autotrophs b) Heterotrophs
Ans. a) Autotrophs
Answer the following Questions
a) What is heterotrophs? Give one example.
Ans. Animals and most other organisms take in food prepared by plants, are called heterotrophs.
Example – Human beings.
b) What are cells? What is cytoplasm?
Ans. The bodies of living organisms are made of tiny units called cells.
The nucleus is surrounded by a jelly-like substance called cytoplasm.
c) What is Symbiosis? Give one example.
Ans. The organisms that live together and share both shelter and nutrients, this relationship is called symbiosis.
Example – Certain fungi live inside the roots of plants. The plants provide nutrients to the fungus and, in return, the fungus provides water and certain nutrients.
d) Why does green patches formed in pond’s water? Why algae are green in color?
Ans. The green patches are formed in pond’s water by the growth of organisms called algae.
They contain chlorophyll which gives them the green color.
In case you are missed :- NCERT Extra Questions for Nutrition in Animals
4) What is Stomata? What is the function of chlorophyll? Which substances are used during photosynthesis? Which gas is released during photosynthesis?
Ans. Carbon dioxide from air is taken in through the tiny pores present on the surface of leaves. These pores are called stomata.
Chlorophyll helps leaves to capture the energy of the sunlight.
Chlorophyll, sunlight, water and carbon dioxide are used during photosynthesis.
Oxygen is released during photosynthesis.
Assertion Reason Questions
Mark your answer as per the codes provide below:
a) A: Proteins are nitrogenous substances.
R: Proteins contain nitrogen.
I.) Both A and R are true and R is the correct explanation of A.
II.) Both A and R are true but R is not the correct explanation of A.
III.) A is true but R is false.
IV.) A is false but R is true.
V.) Both A and R are false.
Ans. I. Both A and R are true and R is the correct explanation of A.
b) A: The desert plants cannot perform photosynthesis.
R: The desert plants have spine-like leaves.
I.) Both A and R are true and R is the correct explanation of A.
II.) Both A and R are true but R is not the correct explanation of A.
III.) A is true but R is false.
IV.) A is false but R is true.
V.) Both A and R are false.
Ans. IV. A is false but R is true.
Case Based Questions
The mode of nutrition in which organisms take in nutrients from dead and decaying matter is called saprotrophic nutrition. Such organisms with saprotrophic mode of nutrition are called saprotrophs.
a) ______ is an example of saprotrophs.(Fungi)
b) Where are saprotrophs found in the house?
Ans. In the house, saprotrophs are found on pickles, leather clothes and other articles that are left in hot and humid weather for so long.
In case you are missed :- NCERT Extra Questions for Heat
Very good questions
Good
I like the questions.