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Ncert exemplar Solutions Class 7 Science Nutrition in Plants
Welcome to NCTB Solutions. Here with this post we are going to help 7th class students for the Solutions of NCERT Exemplar Class 7 Science Book, Unit 1, Nutrition in Plants. Here students can easily find step by step solutions of all the problems for Nutrition in Plants, Also here our Science teacher’s are solved all the questions with easily understandable language with proper guidance so that all the students can understand easily.
Nutrition in Plants Solution :
Multiple Choice Questions :
Question no – (1)
Organisms which prepare food for themselves using simple naturally available raw materials are referred to a
Answer :
The correct answer is option – (b)
Organisms which prepare food for themselves using simple naturally available raw materials are referred to a Autotrophs.
Question no – (2)
In the absence of which of the following will photosynthesis not occur in leaves?
Answer :
The correct answer is option – (b)
In the absence of Chlorophyll photosynthesis will not occur in leaves.
Question no – (3)
Which of the following statements is/are correct?
Answer :
The correct option is – (a) (i) and (iv)
The correct statements are –
(i) All green plants can prepare their own food.
(iv) Oxygen is liberated during photosynthesis.
Question no – (4)
Pitcher plant traps insects because it
Answer :
The correct answer is option – (b)
Pitcher plant traps insects because it grows in soils which lack in nitrogen.
Question no – (5)
The term that is used for the mode of nutrition in yeast, mushroom and bread-mould is
Answer :
The correct answer is option – (c)
Saprophytic is the term used for the mode of nutrition in yeasts, mushrooms and bread-molds.
Question no – (6)
When we observe the lower surface of a leaf through a magnifying lens we see numerous small openings. Which of the following is the term given to such openings?
Answer :
The correct answer is alternative – (a)
Stomata the term given to such openings.
Question no – (7)
Two organisms are good friends and live together. One provides shelter, water, and nutrients while the other prepares and provides food. Such an association of organisms is termed as
Answer :
The correct option is – (d)
Such an association of organisms is termed as Symbiosis.
Question no – (8)
Which of the following raw material is available in the air for photosynthesis?
Answer :
Option – (b) is the correct answer.
Carbon dioxide is available in the air for photosynthesis.
Very Short Answer Questions :
Question no – (9)
Answer :
In plants like potato and ginger the food is prepared in the leaves of these plants through the process of photosynthesis.
Question no – (10)
Answer :
The missing raw materials to the list are – (a) Sunlight (b) carbon dioxide.
Short Answer Questions :
Question no – (11)
Answer :
Even tough the goat has eaten all of the leaves and the plant couldn’t produce food of its own, it survive by using the food stored in the stems and roots.
Question no – (12)
Answer :
(i) RASPAEIT → Parasite.
(ii) ROPEHYTSAP → Saprophyte.
(iii) TOROPHAUT → Autotroph.
(iv) SIBIOMSYS → Symbiosis.
Question no – (13)
Answer :
Farmers who cultivate pulses like green gram, bengal gram, black gram do not apply nitrogenous fertilizers in the soil because the roots of these plants contains rhizobium bacteria which converts nitrogen into soluble form to be used by the plant.
Question no – (14)
Answer :
The wheat dough when left in the open for a few days becomes a breeding ground for fungus which eats the decaying dough and emits foul smell and makes it useless.
Question no – (15)
Answer :
(a) Available in the plant : Chlorophyll.
(b) Available in the soil : Water, minerals.
(c) Available in the air : Carbon dioxide.
(d) Available during day : Sunlight.
Question no – (16)
Answer :
(a) → (iii) Autotroph
(b) → (iv) Saprophyte
(c) → (i) Insectivorous plant
(d) → (v) Parasitic
(e) → (ii) Heterotroph.
Question no – (18)
Answer :
Wild animals like tiger, wolf, lion and leopard do not eat plants but that does not means that they can survive without plants. They indirectly depend on plants for their survival. Without plants there would be no oxygen for them to breathe and no more prey for these wild animals to eat as the herbivore eat plants to survive.
Question no – (19)
Answer :
Leaves have a green pigment called Chlorophyll which captures energy from sunlight. This energy is used in the process of photosynthesis and along with other raw materials like carbon dioxide and water synthesize food.
Question no – (20)
Answer :
(b) I live in water, people keep me in an aquarium and feed me Fish, Heterotroph.
(c) I am small and I can fly. I disturb your sleep, bite you and suck your blood which is my food Mosquito, Parasite.
(d) I am white and soft. I grow well in the rainy season. children pluck me from the ground and admire me. i absorb nutrients from decomposed dead parts of plants and animals in the soil Mushroom, Saprophyte.
Other Chapter Solutions :
👉 Heat
👉 Physical and Chemical Changes
👉 Weather, Climate and Adaptation of Animals to Climate
👉 Soil
👉 Transportation in Animals and Plants
👉 Electric Current and Its Effects
👉 Light
👉 Wastewater Story
