Class 10 Science Chapter 6 MCQ (Multiple Choice Questions) test series of Life Processes updated for new academic session 2022-23. These questions are important for CBSE Board examination as it contains important questions from CBSE Sample Papers, Questions from Board Papers also. After going through the chapter 6 of Class 10 Science, students should practice these questions to cross check there level of preparation for exams. More MCQ Questions will be added as per need of the students.

Class 10 Science Chapter 6 MCQ for 2022-23

Class:10
Subject:Science
Contents:MCQ Tests

Class 10 Science Chapter 6 MCQ Test for Revision

The following test of MCQs contains 10 questions for practice. Considering each questions as of 1 mark, attend the test. If you are getting less than 40 percent marks means, you need to go through NCERT Books once again. Doing more than 6 or more questions correctly is satisfactory.

Q1

Which of the following statements about the autotrophs is incorrect?

[A]. They synthesize carbohydrates from carbon dioxide and water in the presence of sunlight and chlorophyll.
[B]. They store carbohydrates in the form of starch.
[C]. They convert carbon dioxide and water into carbohydrates in the absence of sunlight.
[D]. They constitute the first trophic level in food chains.
Q2

In tissues of human beings, glucose is converted into pyruvic acid in the

[A]. Cytoplasm.
[B]. Chloroplast.
[C]. Mitochondria.
[D]. Golgi body.
Q3

Select the correct statement from the following.

[A]. Heterotrophs do not synthesise their own food.
[B]. Heterotrophs utilise solar energy for photosynthesis.
[C]. Heterotrophs synthesise their own food.
[D]. Heterotrophs are capable of converting carbon dioxide and water into carbohydrates.
Q4

Badal appeared in class test but he confused to know the incorrect statement. Would you help him to know that?

[A]. Animals can move from one place to another or they can move their body parts.
[B]. The plants can only move parts of their body such as leaves, flowers, shoots and roots.
[C]. Non-living things which are not alive they also move by themselves.
[D]. The movement over very small-scale organisms are invisible to the naked eyes.
Q5

Which of the following statement is or are incorrect?

[A]. All the living organisms need energy to perform various life processes.
[B]. Energy is not required by an organism during sleep.
[C]. Food is a kind of will which provides energy to all living organisms.
[D]. Our body gets longest size in in early morning in the bed.
Q6

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains

[A]. complex proteins.
[B]. simple proteins.
[C]. fats.
[D]. starch.
Q7

In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

[A]. Those organisms which can make their own food from the organic substances present in the environment are called autotrophs.
[B]. Those organisms which cannot make their own food and depends on the other organisms for their food are called heterotrophs.
[C]. A nutrient can be defined as a substance which an organism obtains from its surroundings and uses it as a source of energy.
[D]. None of the above.
Q8

Choose the forms in which most plants absorb nitrogen:

[A]. Proteins, and Nitrates and Nitrites
[B]. Nitrates and Nitrites, and Urea
[C]. Urea, and Atmospheric nitrogen
[D]. Proteins, and Atmospheric nitrogen
Q9

Choose the event that does not occur in photosynthesis

[A]. Absorption of light energy by chlorophyll
[B]. Reduction of carbon dioxide to carbohydrates
[C]. Oxidation of carbon to carbon dioxide
[D]. Conversion of light energy to chemical energy
Q10

Which of the following equations is the summary of photosynthesis?

[A]. 6CO2 + 12H2O → C6H12O6 + 6CO2 + 6H2O
[B]. 6CO2 + H2O + Sunlight → C6H12O6 + O2 + 6H2O
[C]. 6CO2 + 12H2O + Chlorophyll + Sunlight → C6H12O6 + 6O2 + 6H2O
[D]. 6CO2 + 12H2O + Chlorophyll + Sunlight → C6H12O6 + 6CO2 + 6H2O
Q11

Which of the following statement is true about heart?

[A]. Left atrium receives oxygenated blood from different parts of body while right atrium receives deoxygenated blood from lungs.
[B]. Left ventricle pumps oxygenated blood to different body parts while right ventricle pumps deoxygenated blood to lungs.
[C]. Left ventricle pumps oxygenated blood to different body parts while right ventricle pumps deoxygenated blood to lungs.. Right atrium receives deoxygenated blood from different parts of the body while left ventricle pumps oxygenated blood to different parts of the body.
[D]. Left atrium receives oxygenated blood from different parts of body while right atrium receives deoxygenated blood from lungs.. Left atrium transfers oxygenated blood to right ventricle which sends it to different body parts.
Q12

The internal (cellular) energy reserve in autotrophs is

[A]. Glycogen
[B]. Protein
[C]. Starch
[D]. Fatty acid
Q13

In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

[A]. The process in which the absorbed food is taken in by body cells and used for energy growth and repair is called assimilation.
[B]. The process in which the digested food passes through the intestinal wall into bloodstream is called absorption.
[C]. The process in which the food containing large in soluble molecules is broken down into small water-soluble molecules is called digestion.
[D]. None of the above.
Q14

Oxygen liberated during photosynthesis comes from

[A]. Water
[B]. Chlorophyll
[C]. Carbon dioxide
[D]. Glucose
Q15

If salivary amylase is lacking in the saliva, which of the following events in the mouth cavity will be affected?

[A]. Proteins breaking down into amino acids
[B]. Starch breaking down into sugars
[C]. Fats breaking down into fatty acids and glycerol
[D]. Absorption of vitamins
Q16

Oxygen liberated during photosynthesis comes from

[A]. Water
[B]. Chlorophyll
[C]. Carbon dioxide
[D]. Glucose
Q17

Choose the correct statement that describes arteries.

[A]. They have thick elastic walls, blood flows under high pressure; collect blood from different organs and bring it back to the heart.
[B]. They have thin walls with valves inside, blood flows under low pressure and carry blood away from the heart to various organs of the body.
[C]. They have thick elastic walls, blood flows under low pressure; carry blood from the heart to various organs of the body.
[D]. They have thick elastic walls without valves inside, blood flows under high pressure and carry blood away from the heart to different parts of the body.
Q18

Neha is writing some sentences about living things. Choose the statements which do not shows the characteristics of living things:

[A]. Living things need air and water.
[B]. Living things can respond to changes around them.
[C]. Living things respire or release energy from food.
[D]. Living things cannot move by themselves, such as plant.
Q19

Read the following sentences carefully, and choose the incorrect one:

[A]. An aerobic respiration take place in our muscles during vigorous physical exercise when oxygen gets used up faster in the muscles cells.
[B]. The accumulation of lactic acid in the muscles cause muscle cramps.
[C]. We can get relief from cramps in muscles caused by heavy exercise by taking a hot water bath or a message.
[D]. None of the above.
Q20

Which of the following statement is or are incorrect?

[A]. The respiration which takes place without oxygen is called an aerobic respiration.
[B]. In an aerobic respiration the microorganisms like east break down glucose into ethanol and carbon dioxide and release energy.
[C]. The whole process of an aerobic respiration take place in the Protoplasm of cells.
[D]. None of the above
Q21

Which of the following statement is or are correct?

[A]. Each kidney is made up of a large number of excretory units called nephrons.
[B]. The best long-term solution for kidney failure is the kidney transplant.
[C]. The process used to clean the blood of a person by separating the waste substance from it, is called dialysis.
[D]. All the above.
Q22

When air is blown from mouth into a test-tube containing lime water, the lime water turned milky due to the presence of

[A]. Oxygen
[B]. Carbon dioxide
[C]. Nitrogen
[D]. Water vapour
Q23

Choose the function of the pancreatic juice from the following

[A]. Trypsin digests proteins and lipase carbohydrates
[B]. Trypsin digests emulsified fats and lipase proteins
[C]. Trypsin and lipase digest fats
[D]. Trypsin digests proteins and lipase emulsified fats
Q24

Read the following sentences carefully, and choose the incorrect one(s):

[A]. The maximum pressure at which the blood leaves the heart through the main artery during contraction phase is called the systolic pressure.
[B]. The minimum pressure in the arteries during the relaxation phase of heart is called the diastolic pressure.
[C]. Blood pressure is measured by using an instrument called sphygmomanometer.
[D]. The normal blood pressure usually written as 80 upon 120
Q25

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains:

[A]. Complex proteins
[B]. Simple proteins
[C]. Fats
[D]. Starch
Class 10 Science Chapter 6 MCQ Tests

Class 10 Science Chapter 6 MCQ Tests are given for the practice of topic LIFE PROCESSES. The questions are picked up from NCERT Books, Some popular publisher’s books and NCERT Exemplar Problems books. These are a complete sets of questions for knowledge testing as well as preparation of CBSE Board Exams.

Are MCQs important for class 10 Board exams?

From 2019-20, MCQs are compulsory in board exams. There will be 20 marks for very short questions including MCQ, Fill in the blanks, etc.

Is the explanation of MCQ required in Board Exams for full score?

You may give only the correct option as answer but if you know the correct explanation, please give in brief.

What are the maximum number of MCQs in Class 10 Science Boards?

There may be maximum of 20 MCQs in Class 10 Science Examination.

What are the marks of each MCQ?

Generally, each MCQ consists of 1 mark only.

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