PSEB SOLUTION CLASS 6TH SCINECE CHAPTER 1 2.Components of food QUESTION ANSWER IN ENGLISH

PSEB SOLUTION CLASS 6TH SCINECE CHAPTER 1 2.Components of food QUESTION ANSWER IN ENGLISH

PSEB SOLUTION CLASS 6TH SCINECE CHAPTER 1 2.Components of food QUESTION ANSWER IN ENGLISH

Components of Food: Essential Nutrients and Their Importance | Class 6 Science

Introduction

Food is more than just something we eat – it’s the fuel that keeps our bodies running! In this lesson, we’ll explore the different components of food and why each one is vital for our health and growth. Understanding these nutrients will help you make better food choices every day.

Fill in the Blanks

Let’s test your knowledge with these important facts:

1. Iodine solution is used to test the presence of starch in any food item.
2. Potato, rice, and wheat are rich in starch.
3. Citrus fruits are the main source of Vitamin C.
4. Anaemia is caused due to deficiency of Iron.
5. Goitre is caused due to deficiency of Iodine.

True or False

Can you identify which of these statements are correct?

1. Vitamin D is produced in the human body with the help of sunlight. (✅ True)
2. We get calcium from milk and milk products. (✅ True)
3. Pulses are a rich source of fats. (❌ False – They’re actually protein-rich!)
4. Rice alone can give all nutrients to our body. (❌ False – We need a variety of foods)
5. Night blindness is caused due to deficiency of Vitamin A. (✅ True)

Match the Columns

Connect these nutrients with their related deficiency diseases:

Nutrient/Deficiency	Related Disease
1. Deficiency of Protein	E) Kwashiorkor
2. Vitamin A	D) Night Blindness
3. Vitamin B	B) Beri-Beri
4. Vitamin C	C) Scurvy
5. Vitamin D	A) Rickets

Multiple Choice Questions

Test your understanding with these questions:

1. Which is a rich source of protein?

• A) Potato
• B) Mango
• C) Rice
• ✅ D) Moong Dal

1. What is required for proper thyroid function?

• A) Vitamin
• B) Calcium
• ✅ C) Iodine
• D) Iron

1. Anaemia is caused by deficiency of:

• A) Vitamin
• B) Calcium
• ✅ C) Iron
• D) Iodine

Short Answer Questions

What is a balanced diet?

A balanced diet contains adequate amounts of all nutrients (carbohydrates, proteins, fats, vitamins, minerals), along with roughage and water. It’s not about eating one “perfect” food, but rather combining different foods to get all the nutrients your body needs.

B)What are Main sources of carbohydrates

Some excellent sources of carbohydrates include:

• Potato
• Wheat
• Rice
• Mango
• Banana

These foods give us the energy we need for our daily activities.

C)Why protein is called body buiding foods?

Protein earns its title as “body-building food” because it’s essential for the growth and repair of cells throughout our body. Every time we grow or heal, proteins are the building blocks making it possible.

D)What is importance of roughage for human body?

Roughage plays these crucial roles in our body:

• Aids in food digestion
• Helps prevent constipation
• Keeps our digestive system running smoothly

E)Name two food items which are rich in fats.

Some excellent sources of dietary fats include:

• Butter
• Vegetable oil
• Dry fruits
• Eggs

Short Answer Questions

Why Water is Essential for Life

1. Water transports digested food to body cells
2. Water helps eliminate waste products from the body

B) Name the five important nutrients required by our body.

Our body requires these five key nutrients:

1. Carbohydrates
2. Fats
3. Protein
4. Vitamins
5. Minerals

C) From where do we get vitamin C ?Name the disease caused due to deficiency
of vitamin c.

We obtain Vitamin C from citrus fruits like:

• Oranges
• Limes
• Lemons
• Amla (Indian gooseberry)

D) Why carbohydrates and fats are called energy giving food? Explain.

Energy-Giving Foods

Carbohydrates and fats are called “energy-giving foods” because they:

• Provide the primary energy our body needs
• Fuel our daily activities and bodily functions

Long Answer Questions

A) What are deficiency diseases? Briefly explain the diseases caused by deficiency of protein and carbohydrates in human body.

Deficiency diseases occur when our diet lacks essential nutrients over an extended period. Two serious protein-related deficiency diseases are:

1. Kwashiorkor (Protein deficiency):

• Stunted growth in children
• Swelling of face and feet
• General weakness
• Rough skin texture

1. Marasmus (Protein and carbohydrate deficiency):

• Extreme weight loss and thinness
• Prominent rib visibility
• Severe muscle wasting

B) Write down the importance of Minerals in human body.

Minerals are crucial for:

• Iron: Forms hemoglobin in blood
• Calcium: Builds strong bones and teeth
• Phosphorus: Supports bone and teeth formation
• Iodine: Ensures proper thyroid function

C) What are vitamins?Write down the importance of different vitamins in human
body.

Vitamins are micronutrients needed in small quantities with these vital roles:

1. Vitamin A: Protects eyes, skin, and hair
2. Vitamin B: Supports growth and proper functioning of:

• Digestive system
• Heart
• Nerves
• Muscles

1. Vitamin C: Boosts disease resistance
2. Vitamin D: Promotes bone and teeth growth
3. Vitamin E: Maintains overall health
4. Vitamin K: Essential for blood clotting

Science Experiments: Testing Food Components

Activity 1: Testing for Starch

Materials Required:

• Iodine solution
• Watch glass
• Dropper
• Food item to be tested

Procedure:

1. Place the food item on a watch glass
2. Using a dropper, put one drop of iodine solution on the food item

Observation:
The food item’s color changes to dark blue or black if starch is present.

Activity Questions:

Q1. What happens when we put iodine solution on raw potato?
Ans. Its color changes to dark blue or black.

Q2. What is the color of iodine solution?
Ans. Orange to light brown.

Q3. Name other food items that can test for starch besides raw potato.
Ans. Boiled rice, wheat flour, sugarcane etc.

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Activity 2: Testing for Protein

Materials Required:

• Test tube
• Dilute sodium hydroxide solution
• Copper sulphate solution
• Food item to be tested (e.g., milk)

Procedure:

1. Take 2ml of milk in a test tube
2. Add a small amount of dilute sodium hydroxide solution
3. Add 2-3 drops of copper sulphate solution
4. Shake the test tube gently

Analysis:
A violet color appears in the solution, indicating the presence of protein.

Activity Questions:

Q1. Name the chemicals used to test for protein.
Ans. Copper sulphate solution and sodium hydroxide solution.

Q2. Name two protein-rich food items.
Ans. Soyabean, pulses, egg etc.

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Activity 3: Testing for Fats

Materials Required:

• Plain paper
• Food item to be tested

Procedure:

1. Rub the food item on the paper
2. Observe the paper

Analysis:
The paper becomes translucent where the food was rubbed, showing fat content.

Activity Questions:

Q1. Why does paper become translucent when we rub cashew on it?
Ans. The fats present in cashew make the paper translucent.

Q2. Name two fat-rich food items.
Ans. Butter, vegetable oil, dry fruits etc.