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Science M.C.Q

MODEL PAPER - 4 [2026] · CBSE STD 10 (CBSE - English Medium). 7 questions.

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M.C.Q

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7 questions · timed · auto-graded

MCQ 11 Mark
Identify an involuntary action from the following:
  • ✓
    Regular beating of heart
  • B
    Riding a bicycle
  • C
    Picking up a pencil
  • D
    Walking in a straight line
Answer
Correct option: A.
Regular beating of heart
(A) Regular beating of heart
Explanation:Regular beating of heart
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MCQ 21 Mark
Which one of the following statements is correct about the human circulatory system?
  • A
    Blood transports only oxygen and not
  • B
    Human heart has five chambers. carbon dioxide.
  • ✓
    Valves ensure that the blood does not flow
  • D
    Both oxygen-rich and oxygen-deficient backwards. blood gets mixed in the heart.
Answer
Correct option: C.
Valves ensure that the blood does not flow
(C) Valves ensure that the blood does not flow backwards.
Explanation:
i. The human circulatory system consists of many systems that are associated with each other.
ii. These systems are arteries, veins, heart, and vessels. There are further two types of vessels which are known as coronary vessel and portal vessel.
iii. The human circulatory system regulates the flow of blood in the body.
iv. Blood flows from the heart to lungs and then back to heat in a cycle.
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MCQ 31 Mark
Which of the following are water intensive crops?
  • A
    Wheat and sugarcane
  • B
    Wheat and rice
  • ✓
    Sugarcane and rice
  • D
    Wheat and gram
Answer
Correct option: C.
Sugarcane and rice
(C) Sugarcane and rice
Explanation:
Sugarcane and rice
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MCQ 41 Mark
Match the following with correct response.
Column AColumn B 
(i) Thyroid gland(a) Testosterone
(ii) Pancreas(b) Thyroxin
(iii) Testis(c) Estrogen
(iv) Ovaries(d) Insulin and glucagon
  • A
    (i) - (d), (ii) - (a), (iii) - (c), (iv) - (b)
  • B
    (i) - (a), (ii) - (d), (iii) - (b), (iv) - (c)
  • C
    (i) - (c), (ii) - (b), (iii) - (d), (iv) - (a)
  • ✓
    (i) - (b), (ii) - (d), (iii) - (a), (iv) - (c)
Answer
Correct option: D.
(i) - (b), (ii) - (d), (iii) - (a), (iv) - (c)
(D) (i) - (b), (ii) - (d), (iii) - (a), (iv) - (c)
Explanation:
- Thyroxin is secreted by the thyroid gland to regulate the metabolic rate and help control body temperature.
- Insulin and glucagon are hormones that help regulate the levels of blood glucose in the body secreted by the pancreas.
- The testes are the most essential organs of the male reproductive system. They are the glands where sperm and testosterone are produced.
- Estrogen is a female steroid hormone that is produced by the ovaries.
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MCQ 51 Mark
Some wastes are given below:
i. Garden waste
ii. Ball point pen refills
iii. Empty medicine bottles made of glass
iv. Peels of fruits and vegetables
v. Old cotton shirt
The non-biodegradable wastes among these are:
  • A
    (i), (iii) and (iv)
  • B
    (i), (iv) and (v)
  • ✓
    (ii) and (iii)
  • D
    (i) and (ii)
Answer
Correct option: C.
(ii) and (iii)
(C) (ii) and (iii)
Explanation:
(ii) and (iii)
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MCQ 61 Mark
The statement that correctly describes the characteristic(s) of a gene is:
  • A
    Each chromosome has only one gene located all along its length.
  • ✓
    In individuals of a given species, a specific gene is located on a particular chromosome.
  • C
    All the inherited traits in human beings are not controlled by genes.
  • D
    A gene is not the information source for making proteins in the cell.
Answer
Correct option: B.
In individuals of a given species, a specific gene is located on a particular chromosome.
(B) In individuals of a given species, a specific gene is located on a particular chromosome.
Explanation:In individuals of a given species, a specific gene is located on a particular chromosome.
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MCQ 71 Mark
Most of the digestion and absorption of the food takes place in the
  • ✓
    small intestine
  • B
    stomach
  • C
    large intestine
  • D
    liver
Answer
Correct option: A.
small intestine
(A) small intestine
Explanation:The small intestine is the part of the gastrointestinal tract between the stomach and the large intestine where much of the digestion of food takes place. The primary function of the small intestine is the absorption of nutrients and minerals found in food.
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M.C.Q - Science STD 10 Questions - Vidyadip