Class 7 Science Chapter 1 MCQ

Class 7 Science Chapter 1 MCQ (Multiple Choice Questions) of Nutrition in Plants. All the MCQs are selected form the Class 7 Science NCERT Book Chapter 1 only including all the important topics, main questions, keywords based questions and short questions from exercise.

Answers and Explanation of each question is given along with the question. Important questions related to chapter 1 of 7th science are also given for revision.

Class 7 Science Chapter 1 MCQ for 2020-21

Class:7
Subject:Science
Contents:Multiple Choice Questions – MCQ Tests

Class 7 Science Chapter 1 MCQ for Exams

Class 7 Science Chapter 1 MCQs are given below with answers and explanation of each answer. There are over 10 set of papers each containing 10 questions for practice. All the questions are prepared from NCERT textbook and exemplar books only. All the questions are confined to CBSE Syllabus 2020-21.

Q1

“Leaves are the food factories of plant”. But, how does cactus (desert plants) carry out photosynthesis?

[A]. Roots
[B]. Spines
[C]. Stems
[D]. Green leaves
Q2

Which of the following statement is or are incorrect about the growing crops inside green-houses?

[A]. A Greenhouse is built of any material through which sunlight can’t pass.
[B]. The air continues to heat up because it gets confined within the greenhouse.
[C]. To provide warmer temperature for growing fruit and vegetable plants.
[D]. Green-house also protect it from high blowing wind and rodents.




Q3

Which of the following statements is or are correct?

[A]. Insectivorous plants do not perform photosynthesis at all and they obtain nutrients from insects.
[B]. Parasitic nutrition is a type of “Heterotrophic Nutrition”.
[C]. The association of pulses plant with rhizobium bacteria is example of saprotrophic relationship.
[D]. None of the above.
Q4

In the absence of which of the following will photosynthesis not occur in leaves?

[A]. Guard cells
[B]. Chlorophyll
[C]. Vacuole
[D]. Space between cells
Q5

Pitcher plant traps insects because it

[A]. Is a heterotroph
[B]. Grows in soils which lack in nitrogen
[C]. Does not have chlorophyll
[D]. Has a digestive system like human beings
Q6

Paheli wants to know that some plants have deep red, violet or brown colored leaves but can these leaves perform the process of photosynthesis?

[A]. Yes, because they have different coloured as they trapped more solar energy.
[B]. No, because green pigment is not present in different coloured pigment.
[C]. Yes, because chlorophyll is hiding with leaf colour.
[D]. No, because they get nutrients from the soil and different colour attracts many organisms.



Q7

Farmers do not apply nitrogenous fertilizers in the cultivation of pulses plant. Why?

[A]. Pulses plant already have stored much nitrogenous compound.
[B]. Pulses plant do not need the compound of nitrogen because they are autotrophs.
[C]. Pulses plant fulfill their needs by saprotrophic nutrition.
[D]. Pulses plant derive nutrition from the symbiotic association.
Q8

Photosynthesis requires chlorophyll and a few other raw materials as

[A]. H2O
[B]. Solar energy
[C]. CO2
[D]. All the above



Q9

Why insectivorous plants trap insects?

[A]. They can’t get sufficient nutrients, as nitrogen, from soil.
[B]. They want to take sometimes different nutrition as juices of insects.
[C]. They are autotrophs and some autotrophs are not able to make food.
[D]. Once in a week, they used their digestive system.
Q10

Choose the incorrect statements, what happened when wheat dough left in the open, after a few days

[A]. It starts to emit a foul smell.
[B]. It starts growth of saprophytic fungi and yeast.
[C]. Carbohydrate in wheat breakdown into carbon dioxide.
[D]. It is the place where rhizobium bacteria grow.




Why do all living being need food?

All living organisms require food for cellular activities like growth, development and physical activities.

Who are Autotrophs?

Organisms which make their own food are called Autotrophs like plants.

What do you mean by Photosynthesis?

Photosynthesis is the process by which plants make their own food.

How do green plants prepare their food?

Green plants use water, carbon dioxide and sunlight to prepare their food by the process of photosynthesis.

Chlorophyll and Photosynthesis

When we see around us, we find that most of the plant leaves are green in colour. It is because leaf cells contain green pigments called Chlorophyll. The photosynthesis happens at this site of leaf’s cell. Chlorophyll helps in trapping of sun light energy. Water is absorbed by the root hairs from the soil and carbon dioxide coming from atmosphere is taken in through the stomata of leaf. Water and carbon dioxide combine in presence of sunlight trapped by chlorophyll and produces glucose and releases oxygen into the atmosphere. This complete process is called Photosynthesis.



Currently in Class test of standard 7 or school exams, MCQs are compulsory in each subject. These MCQs will help the students to understand the concepts given in Chapter 1 of Class 7 Science. Definitions, keywords and all extra questions are included in the form of multiple choice questions to provide a better practice for grade 7 student.