Explore topic-wise MCQs in Science.

This section includes 24 Mcqs, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.

1.

Observe the given experimental figures carefully. What does this experiment prove?  

A. Material X contains proteins.
B. Material X contains carbohydrates.
C. Mutation
D. Material X contains iodine.
Answer» B. Material X contains carbohydrates.
2.

Following are the properties of four minerals P, Q, R and S. identify them and select the correct option. P: It is required for proper functioning of thyroid gland. Q: It helps in maintaining body's water balance,   R: It is important for haemoglobin formation. S: It strengthens bones and teeth and helps in blood clotting.  

A. Deficiency of P causes dryness of eyes and inflammation of tongue,  
B. O is also required for the proper functioning of nervous system.   
C. Only (ii) and (iii)  
D. (d) S also helps to fight infections and keeps skin and mouth healthy.
Answer» C. Only (ii) and (iii)  
3.

Aarushi took two food samples X and Y in separate test tubes. She added 2-3 drops of Benedict's solution in food sample X and heated it while she added two drops of copper sulphate solution and few drops of caustic soda solution in food sample Y. She observed that sample X turned brick- red while sample Y turned purple.Which of the following is correct regarding X and Y? 

A. X consists of protein while Y consists of starch,   
B. X consists of sugar while Y consists of protein.
C. Gibberellins 
D. X consists of sugar while Y consists of starch,   
Answer» C. Gibberellins 
4.

The food items given below belongs to which of the following groups? Beans,   Peas,   Pulses,  Meat

A.  Fats  
B.  Proteins
C. Only (i), (ii) and (iii)
D.  Carbohydrate
Answer» C. Only (i), (ii) and (iii)
5.

The child in the given figure is suffering from a deficiency disease. This disease is caused dueto deficiency of

A. carbohydrates 
B. proteins
C. It is an involuntary action.
D. vitamins
Answer» C. It is an involuntary action.
6.

DIRECTIONS: Read the passage(s) given below and answer the questions that follow Passage - 2 For growth and maintenance of good health, our diets would have all the nutrients that our body needs, in right quantities. The diet should also contain good amount of roughage and water. Such a diet is called balanced diet. Some nutrients get lost in the process of cooking and preparations. Which of the following nutrients is generally lost if vegetables and fruits are washed after cutting or peeling them?

A. Carbohydrates  
B. Proteins
C. (iii) and (iv) 
D. All of these
Answer» D. All of these
7.

DIRECTIONS: The questions in this segment consists of two statements, one labelled as "assertion A?? and the other labelled as "reason R ". You are to examine these two statements carefully and decide if the assertion A and reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Obesity occurs when one takes more food than requirement. Reason (R): The extra food gets stored as fat and the person becomes too fat.

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. Andaman and Nicobar
D. A is false but R is true.
Answer» B. Both A and R are true but R is not the correct explanation of A.
8.

The main difference between raw soyabean and cooked soyabean is in respect of

A. protein content
B. biological value of proteins
C. Maintain ecological balance in nature.
D. None of these
Answer» B. biological value of proteins
9.

DIRECTIONS: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column - I (Disease) Column - II (Deficient substance) A. scurvy (p) Iodine B. Rickets (q) Vitamin D C. Goitre (r) Vitamin A D. Night blindness (s) Vitamin C

A. \[A\to (s);B\to (q);C\to (p);D\to (r)\]
B. \[A\to (s);B\to (q);C\to (r);D\to (p)\]
C.  Soil erosion
D. \[A\to (p);B\to (r);C\to (q);D\to (s)\]
Answer» B. \[A\to (s);B\to (q);C\to (r);D\to (p)\]
10.

How many grams of copper sulphate be dissolved in 100 ml of water to prepare copper sulphate solution for testing the presence of proteins in a food item?

A. 1   
B.  2
C.  A zone where controlled hunting is permitted
D. 4
Answer» C.  A zone where controlled hunting is permitted
11.

Which of the following have higher nutritive value and why?

A. P, because it gives more energy
B. Q because it gives more proteins
C. Endangered species  
D. Q because it gives more energy and proteins
Answer» E.
12.

Iron is a ????????

A. vitamin
B. fat
C. Cycle   
D. protein
Answer» D. protein
13.

If you did not eat fresh fruits and vegetables, yours body would be deficient in

A. Vitamin A 
B.  Vitamin C
C. Microbes 
D. Vitamin D
Answer» C. Microbes 
14.

Excessive intake of sodium may lead to ???

A. diabetes
B. typhoid
C. Coral leaching   
D. anaemia
Answer» D. anaemia
15.

Which of these stimulates peristalsis and prevents constipation?

A.  Ghee   
B.  Sprouts
C.  Only (ii) and (iii)
D.  Milk
Answer» B.  Sprouts
16.

What happens during digestion?

A. Food is changed to different forms
B. Soluble food is taken up by blood
C. Reforestation 
D. Both (a) and (b)
Answer» B. Soluble food is taken up by blood
17.

Carbohydrates and starches are included in which of the following food groups?

A.  Energy - giving foods.
B.  Body - building foods.
C. Kanha National Park
D.  All of these.
Answer» B.  Body - building foods.
18.

Repeated washings of rice may result in lost of

A. vitamins
B. minerals
C.  The sloth
D. neither of vitamins nor of minerals
Answer» D. neither of vitamins nor of minerals
19.

Mainly pulses are the source of

A. protein
B. carbohydrate
C. Scarcity of drinking water
D. None of these
Answer» B. carbohydrate
20.

Starch is a kind of

A. carbohydrate  
B. fat
C. International Union for Controlling the Nature and National resources.
D. vitamin
Answer» B. fat
21.

Which of the following symptoms is shown by a person whose diet is deficient in proteins?

A.  Swelling of face
B.  Obesity
C. Giant Panda
D.  Poor vision
Answer» B.  Obesity
22.

Select the one that is rich in proteins.

A. Cucumber 
B. Gram
C. Extinct species   
D. Maize
Answer» C. Extinct species   
23.

Which of the following vitamins are produced in our body when exposed to sunlight in the morning?

A.  Vitamin A  
B.  Vitamin B 
C.  Vulnerable species
D.  Vitamin K   
Answer» D.  Vitamin K   
24.

Which of the following labelled boxes contain protective food?

A.  P and Q only
B.  Q only
C. Teak
D.  Q and R only
Answer» C. Teak