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First read the questions carefully using the Read section. Use the Details button to understand concepts clearly. After completing reading, click Practice Quiz to test yourself.
📘 Study MCQs
Q1. What is the main function of carbohydrates in our body?
• To build muscles
• To provide energy
• To fight diseases
• To carry oxygen
Answer: To provide energy
Carbohydrates are broken down into glucose, which is the primary source of energy for our body’s cells and activities.
Q2. Which of these is a source of simple carbohydrates?
• Whole wheat bread
• Brown rice
• Table sugar
• Potatoes
Answer: Table sugar
Table sugar (sucrose) is a simple carbohydrate. It is quickly digested and provides a fast burst of energy.
Q3. Foods like bread and rice are rich in which nutrient?
• Proteins
• Vitamins
• Carbohydrates
• Fats
Answer: Carbohydrates
Bread, rice, potatoes, and cereals are staple foods that are major sources of carbohydrates in our diet.
Q4. Which nutrient is called the body’s “building block”?
• Carbohydrate
• Fat
• Protein
• Vitamin
Answer: Protein
Proteins are essential for the growth and repair of body tissues, such as muscles, skin, and hair, hence they are called building blocks.
Q5. Which vitamin is essential for good eyesight, especially in dim light?
• Vitamin A
• Vitamin B
• Vitamin C
• Vitamin D
Answer: Vitamin A
Vitamin A helps form a pigment in our eyes necessary for seeing in low-light conditions and also keeps our skin healthy.
Q6. Which mineral is needed for making red blood cells and carrying oxygen?
• Calcium
• Iodine
• Iron
• Phosphorus
Answer: Iron
Iron is a crucial part of hemoglobin, the protein in red blood cells that carries oxygen from the lungs to the rest of the body.
Q7. What is the main role of fats in our body?
• To provide a quick energy boost
• To store energy for later use
• To help in digestion
• To build cell walls
Answer: To store energy for later use
Fats are a concentrated source of energy. They are stored in the body and used when needed, providing more than double the energy of carbohydrates.
Q8. Which of these is a good source of protein?
• Butter
• Orange
• Lentils (Dal)
• Potato
Answer: Lentils (Dal)
Lentils, beans, pulses, eggs, meat, and milk are excellent sources of plant-based and animal-based proteins.
Q9. Rickets is a disease caused by the deficiency of which vitamin?
• Vitamin A
• Vitamin B
• Vitamin C
• Vitamin D
Answer: Vitamin D
Vitamin D helps our body absorb calcium. Its deficiency in children can lead to rickets, which causes weak and soft bones.
Q10. Scurvy, a disease causing bleeding gums, is due to lack of which vitamin?
• Vitamin A
• Vitamin B1
• Vitamin C
• Vitamin D
Answer: Vitamin C
Vitamin C is essential for healthy gums and healing wounds. Its deficiency causes scurvy.
Q11. Which type of fat is usually solid at room temperature?
• Saturated fat
• Unsaturated fat
• Both
• None
Answer: Saturated fat
Saturated fats, like those found in butter and ghee, are typically solid at room temperature.
Q12. Which of these is a source of unsaturated fats?
• Butter
• Coconut oil
• Mustard oil
• Cheese
Answer: Mustard oil
Unsaturated fats are usually liquid at room temperature (oils) and come from plant sources like mustard oil, sunflower oil, and nuts.
Q13. Which mineral is essential for making our bones and teeth strong?
• Iron
• Iodine
• Calcium
• Sodium
Answer: Calcium
Calcium is the main mineral found in our bones and teeth, making them hard and strong.
Q14. Goitre, a swelling of the neck, is caused by the deficiency of which mineral?
• Iron
• Calcium
• Iodine
• Phosphorus
Answer: Iodine
Iodine is needed for the thyroid gland to function properly. Its deficiency can cause the gland to swell, leading to goitre.
Q15. Which of these is a complex carbohydrate?
• Glucose
• Fructose (in fruits)
• Starch
• Sucrose (sugar)
Answer: Starch
Starch is a complex carbohydrate found in foods like potatoes, rice, and bread. It is made of long chains of sugar molecules and provides sustained energy.
Q16. What is the main function of roughage or dietary fibre?
• To provide energy
• To build muscles
• To help in digestion and prevent constipation
• To store fat
Answer: To help in digestion and prevent constipation
Roughage, found in fruits, vegetables, and whole grains, adds bulk to food and helps it move smoothly through our digestive system.
Q17. Which vitamin helps our body fight infections and heal wounds?
• Vitamin A
• Vitamin B
• Vitamin C
• Vitamin K
Answer: Vitamin C
Vitamin C boosts our immune system, which helps fight off infections, and is important for the repair of tissues.
Q18. Which of these foods is a good source of carbohydrates?
• Egg
• Chicken
• Chapati
• Fish
Answer: Chapati
Chapati is made from wheat flour, which is rich in starch, a type of complex carbohydrate.
Q19. Which nutrient helps in the formation of cell membranes and protects our organs?
• Carbohydrate
• Protein
• Fat
• Vitamin
Answer: Fat
Fats form a protective cushion around our vital organs like the heart and kidneys and are a part of every cell’s membrane.
Q20. Which of these is NOT a function of proteins?
• Growth and repair of tissues
• Providing immediate energy
• Making enzymes and hormones
• Fighting diseases (antibodies)
Answer: Providing immediate energy
While proteins can be used for energy, their primary role is not to provide immediate energy. Carbohydrates and fats are the main energy providers.
Q21. Night blindness is associated with the deficiency of which nutrient?
• Protein
• Vitamin A
• Vitamin C
• Calcium
Answer: Vitamin A
Vitamin A is crucial for vision. Its deficiency can lead to difficulty seeing in low light, known as night blindness.
Q22. Which type of carbohydrate provides energy over a longer period?
• Simple Carbohydrate
• Complex Carbohydrate
• Both provide equally
• Neither provides energy
Answer: Complex Carbohydrate
Complex carbohydrates like starch are digested slowly, releasing glucose gradually and providing energy over a longer time.
Q23. Anaemia is caused by a deficiency of which mineral in the diet?
• Calcium
• Iron
• Iodine
• Sodium
Answer: Iron
Iron deficiency leads to a shortage of healthy red blood cells (anaemia), causing tiredness and weakness.
Q24. Which vitamin is known as the “sunshine vitamin” because our body can make it with sunlight?
• Vitamin A
• Vitamin B12
• Vitamin C
• Vitamin D
Answer: Vitamin D
When our skin is exposed to sunlight, it can produce Vitamin D, which is essential for strong bones.
Q25. Which of these is an example of saturated fat?
• Olive oil
• Butter
• Groundnut oil
• Sesame oil
Answer: Butter
Butter is an animal product and contains a high amount of saturated fats, which are solid at room temperature.
Q26. What are the two main types of carbohydrates?
• Natural and Artificial
• Saturated and Unsaturated
• Simple and Complex
• Rough and Smooth
Answer: Simple and Complex
Carbohydrates are classified based on their chemical structure: simple sugars (like glucose) and complex carbohydrates (like starch).
Q27. Which nutrient is needed in small amounts but is vital for regulating body processes?
• Carbohydrates
• Proteins
• Vitamins
• Fats
Answer: Vitamins
Vitamins are required in very small quantities but are essential for various functions like immunity, vision, and blood clotting.
Q28. Which of these is a source of animal protein?
• Peas
• Chickpeas
• Milk
• Beans
Answer: Milk
Milk and milk products like curd and paneer, along with eggs, meat, and fish, are sources of animal proteins.
Q29. Which mineral, along with calcium, is important for strong bones and teeth?
• Iron
• Phosphorus
• Iodine
• Sodium
Answer: Phosphorus
Phosphorus works with calcium to build and maintain strong bones and teeth.
Q30. Which vitamin helps in the clotting of blood when we get a cut?
• Vitamin A
• Vitamin B
• Vitamin K
• Vitamin E
Answer: Vitamin K
Vitamin K plays a key role in helping our blood to clot, which stops excessive bleeding from wounds.
Q31. Which of these is a simple carbohydrate found in fruits?
• Starch
• Cellulose
• Fructose
• Lactose
Answer: Fructose
Fructose is a natural sugar found in fruits and honey. It is a simple carbohydrate.
Q32. Oils like sunflower and corn oil are rich in which type of fat?
• Saturated Fat
• Unsaturated Fat
• Trans Fat
• No Fat
Answer: Unsaturated Fat
Most plant-based oils are high in unsaturated fats, which are considered healthier fats.
Q33. Which nutrient deficiency leads to the disease Kwashiorkor?
• Carbohydrate
• Fat
• Protein
• Vitamin C
Answer: Protein
Kwashiorkor is a serious protein deficiency disease, especially in children, causing swelling, stunted growth, and muscle loss.
Q34. Which of these provides the most energy per gram?
• Carbohydrate
• Protein
• Fat
• Vitamin
Answer: Fat
Fats are the most energy-dense nutrient, providing about 9 calories per gram, while carbs and proteins provide about 4.
Q35. Which vitamin is important for healthy skin and mucous membranes?
• Vitamin A
• Vitamin B1
• Vitamin C
• Vitamin D
Answer: Vitamin A
Vitamin A helps keep the skin healthy and the lining of parts of the body like the nose and digestive tract (mucous membranes) in good condition.
Q36. What is the sweetest natural sugar?
• Glucose
• Lactose
• Fructose
• Sucrose
Answer: Fructose
Fructose, found in fruits and honey, is the sweetest of all natural sugars.
Q37. Which mineral helps in maintaining the fluid balance in our body and is found in salt?
• Potassium
• Calcium
• Sodium
• Iron
Answer: Sodium
Sodium, mainly consumed as salt (sodium chloride), helps control the amount of fluid in our body and is needed for nerve function.
Q38. Which of these is a water-soluble vitamin?
• Vitamin A
• Vitamin D
• Vitamin E
• Vitamin C
Answer: Vitamin C
Vitamin C and B-complex vitamins are water-soluble, meaning they dissolve in water and are not stored in the body for long.
Q39. Which nutrient gives us the feeling of fullness for a longer time?
• Simple Carbohydrates
• Fats
• Vitamins
• Minerals
Answer: Fats
Fats take longer to digest than carbohydrates, which helps us feel full and satisfied for a longer period after a meal.
Q40. What is the main sugar found in milk?
• Maltose
• Sucrose
• Lactose
• Glucose
Answer: Lactose
Lactose is the natural sugar present in milk and dairy products. It is a simple carbohydrate.
Q41. Which of these vitamins is fat-soluble?
• Vitamin B
• Vitamin C
• Vitamin D
• All of these
Answer: Vitamin D
Vitamins A, D, E, and K are fat-soluble vitamins. They are stored in the body’s fatty tissues and liver.
Q42. Which disease is caused by a deficiency of Vitamin B1 (Thiamine)?
• Scurvy
• Rickets
• Beriberi
• Goitre
Answer: Beriberi
Beriberi affects the nervous system and heart and is caused by a lack of Vitamin B1, which is found in whole grains and pulses.
Q43. What is the primary source of energy for our brain?
• Proteins
• Fats
• Glucose (from Carbohydrates)
• Vitamins
Answer: Glucose (from Carbohydrates)
The brain relies almost exclusively on glucose, which comes from the breakdown of carbohydrates, for its energy needs.
Q44. Which of these is a function of minerals in our body?
• Provide energy
• Build cell membranes
• Form bones and teeth
• Fight viruses directly
Answer: Form bones and teeth
Minerals like calcium and phosphorus are the building materials for strong bones and teeth.
Q45. Which type of fat is generally considered better for heart health?
• Saturated Fat
• Unsaturated Fat
• Both are equal
• Neither affects the heart
Answer: Unsaturated Fat
Unsaturated fats, found in plant oils, nuts, and fish, can help lower bad cholesterol and are considered heart-healthy when consumed in moderation.
Q46. What is the main constituent of our muscles, skin, and hair?
• Carbohydrates
• Fats
• Proteins
• Water
Answer: Proteins
Proteins are the primary structural component of muscles, skin, hair, nails, and many other tissues in the body.
Q47. Which of these is a source of both carbohydrates and roughage?
• Sugar
• Butter
• Whole grains like oats
• Egg white
Answer: Whole grains like oats
Whole grains contain complex carbohydrates (starch) for energy and dietary fibre (roughage) for good digestion.
Q48. Which vitamin deficiency causes weak bones and bleeding problems in newborn babies?
• Vitamin A
• Vitamin D
• Vitamin K
• Vitamin E
Answer: Vitamin K
Newborns are sometimes given a Vitamin K shot to prevent bleeding problems, as they are born with low levels of this vitamin.
Q49. What are the two main classifications of fats?
• Visible and Invisible
• Simple and Complex
• Saturated and Unsaturated
• Animal and Plant
Answer: Saturated and Unsaturated
Fats are primarily classified based on their chemical structure into saturated (full of hydrogen) and unsaturated (not full of hydrogen) fats.
Q50. Which mineral is a part of the hemoglobin in our blood?
• Calcium
• Iron
• Iodine
• Phosphorus
Answer: Iron
Iron is the central atom in the hemoglobin molecule, which is what allows red blood cells to carry oxygen.