Class 10 - Science

Life Process Online MCQ Test

Olympiad Level MCQs Also Included

→ Assertion Reason type questions in SET-6

Set-1 Set-2 Set-3 Set-4 Set-5 Set-6

1. Assertion (A): Plants lack excretory organs.
Reason (R): Plants usually absorb essential nutrients.

(A) Both A and R are true and R is the correct explanation of A.
(B) Both A and R are true but R is not the correct explanation of A.
(C) A is true but R is false.
(D) A is false but R is true.

2. Assertion (A): In anaerobic respiration, one of the end product is alcohol.
Reason (R): There is an incomplete breakdown of glucose.

(A) Both A and R are true and R is the correct explanation of A.
(B) Both A and R are true but R is not the correct explanation of A.
(C) A is true but R is false.
(D) A is false but R is true.

3. Assertion (A): In plants there is no need of specialised respiratory organs.
Reason (R): Plants do not have great demands of gaseous exchange.

(A) Both A and R are true and R is the correct explanation of A.
(B) Both A and R are true but R is not the correct explanation of A.
(C) A is true but R is false.
(D) A is false but R is true.

4. Assertion (A): Bile is essential for digestion of lipids.
Reason (R): Bile juice contains enzymes.

(A) Both A and R are true and R is the correct explanation of A.
(B) Both A and R are true but R is not the correct explanation of A.
(C) A is true but R is false.
(D) A is false but R is true.

5. Assertion (A): The human heart has four chambers.
Reason (R): The four-chambered heart prevents the mixing of oxygenated and deoxygenated blood.

(A) Both A and R are true and R is the correct explanation of A.
(B) Both A and R are true but R is not the correct explanation of A.
(C) A is true but R is false.
(D) A is false but R is true.

6. Assertion (A): The process of photosynthesis requires sunlight.
Reason (R): Sunlight provides the energy needed to convert carbon dioxide and water into glucose.

(A) Both A and R are true and R is the correct explanation of A.
(B) Both A and R are true but R is not the correct explanation of A.
(C) A is true but R is false.
(D) A is false but R is true.

7. Assertion (A): Respiration is an essential life process for all living organisms.
Reason (R): It releases energy by breaking down glucose into carbon dioxide and water.

(A) Both Assertion and Reason are true, and Reason is the correct explanation for the Assertion.
(B) Both Assertion and Reason are true, but Reason is not the correct explanation for the Assertion.
(C) Assertion is true, but the Reason is false.
(D) Both Assertion and Reason are false.

8. Assertion (A): The human digestive system employs mechanical and chemical processes to break down food.
Reason (R): Mechanical digestion involves the action of digestive enzymes in the stomach.

(A) Both Assertion and Reason are true, and Reason is the correct explanation for the Assertion.
(B) Both Assertion and Reason are true, but Reason is not the correct explanation for the Assertion.
(C) Assertion is true, but the Reason is false.
(D) Both Assertion and Reason are false.

9. Assertion (A): Excretion is a life process that helps in maintaining the body's internal environment.
Reason (R): It eliminates metabolic waste products and excess substances from the body.

(A) Both Assertion and Reason are true, and Reason is the correct explanation for the Assertion.
(B) Both Assertion and Reason are true, but Reason is not the correct explanation for the Assertion.
(C) Assertion is true, but the Reason is false.
(D) Both Assertion and Reason are false.

10. Assertion (A): The circulatory system plays a crucial role in the transportation of oxygen and nutrients to cells.
Reason (R): This system consists of the heart, blood vessels, and blood.

(A) Both Assertion and Reason are true, and Reason is the correct explanation for the Assertion.
(B) Both Assertion and Reason are true, but Reason is not the correct explanation for the Assertion.
(C) Assertion is true, but the Reason is false.
(D) Both Assertion and Reason are false.