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Class 7 Biology: Respiration in Organisms — Chapter Test 1

Class 7 • Biology • Respiration in Organisms • Chapter Test

MediumFREE

15

Questions

20 min

Duration

15

Marks (1 each)

No

Negative marking

Original practice questions with full solutions by ExamPortal.

Instructions

  • • Read each question carefully and pick the correct answer.
  • • You can mark questions for review and come back to them.
  • • Answers are saved automatically.
  • • The test is submitted automatically when time runs out.

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SYLLABUS & QUESTION BLUEPRINT

Sample Practice Questions

Preview 5 sample questions from this 15-question test. Test your knowledge below or take the full exam in timed CBT mode.

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Question 1 of 15
Respiration releases energy by breaking down:
A
water
B
food (glucose)
C
oxygen
D
salt
View Correct Answer & Step-by-Step Solution
Correct Option:(B)food (glucose)

Detailed explanation is available inside the official test attempt review.

Question 2 of 15
Respiration using oxygen is called:
A
anaerobic respiration
B
aerobic respiration
C
fermentation
D
photosynthesis
View Correct Answer & Step-by-Step Solution
Correct Option:(B)aerobic respiration

Detailed explanation is available inside the official test attempt review.

Question 3 of 15
Respiration without oxygen is called:
A
aerobic
B
anaerobic respiration
C
breathing
D
digestion
View Correct Answer & Step-by-Step Solution
Correct Option:(B)anaerobic respiration

Detailed explanation is available inside the official test attempt review.

Question 4 of 15
Yeast respires anaerobically to produce:
A
lactic acid
B
alcohol and carbon dioxide
C
water only
D
oxygen
View Correct Answer & Step-by-Step Solution
Correct Option:(B)alcohol and carbon dioxide

Detailed explanation is available inside the official test attempt review.

Question 5 of 15
Muscle cramps after heavy exercise are due to the build-up of:
A
alcohol
B
lactic acid
C
oxygen
D
water
View Correct Answer & Step-by-Step Solution
Correct Option:(B)lactic acid

Detailed explanation is available inside the official test attempt review.

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Frequently asked questions

How many questions are there in Class 7 Biology: Respiration in Organisms — Chapter Test 1?

There are 15 questions to answer in 20 min. Each correct answer gives 1 mark, for a total of 15 marks.

Is there negative marking?

No. Wrong answers do not lose marks, so attempt every question.

Is this mock test free?

Yes, it is completely free. Just log in with your email to start.

What does this test cover?

It covers the chapter "Respiration in Organisms" of Class 7 Biology. All questions are original, with a full solution for each.

Will I see my result and the solutions?

Yes. Right after you submit you get your score, accuracy, rank and percentile, and you can review every question with the correct answer and a step-by-step explanation.

Can I take this test again?

Yes, you can retake it as many times as you like and compare your scores.