Food

Q.

What are the functions of food?

Q.

A meal must consist of different food components. Justify

Q.

Fresh milk is boiled before consumption while processed milk stored in packets can be consumed without boiling. Give reasons for the following.

Q.

Raw vegetables and fruits are kept in refrigerators whereas jams and pickles can be kept outside. Give reasons for the following.

Q. All plants can make their own food.

1. True
2. False

Q.

_______are necessary for growth and repair of the body.

Q.

What is the difference between saprotrops and parasites.

Q. Boiled rice gives blue-black color in iodine test due to the presence of __________​.

1. starch
2. saliva

Q.

Are proteins hard to digest?

Q.

Question 21
Can you give me a name? Solve each of the following riddles by writing the name of the organism and its mode of nutrition. One riddle is solved to help you.

(a) I am tall but I cannot move. I am green and can prepare my own food_____, ______
(b) I live in water; people keep me in an aquarium and feed me. , ___ , ___.
(c) I am small and I can fly. I disturb your sleep, bite you and suck your blood which is my food. ___ , ___.
(d) I am white and soft. I grow well in the rainy season. Children pluck me from the ground and admire me. I absorb nutrients from decomposed dead parts of plants and animals in the soil. ___ , ___ .

Q.

Resins are obtained from ______.

Q.

Bee-wax is used in the preparation of cosmetics.

1. True

2. False

Q.

What are the main uses of maize?

1. Alcohol

2. Corn starch

3. Fodder

4. Corn oil

Q.

Roughage component in our food is made up of

1. Glucose

2. Cellulose

3. Starch

4. Cane sugar

Q. Identify the mode of nutrition in the image given below.

1. Parasitic
2. Insectivorous
3. Symbiotic
4. Saprotrophic

Q. Give reason of why algae are saprophytes

Q.

Identify and write the names of plants that provide us with fruits.

Q.

Turpentine oil in paints is used as a

1. (a) Thinner

2. (b) Vehicle

3. (c) Base

4. (d) Drier

Q.

What is the full form of MRP in packaged food items?

1. Maximum Retailed Price

2. Maximum Retail Price

3. Maximum Returned Price

4. Maximum Returned Product

Q.

Question 11

Tasty food is not always nutritious and nutritious food may not always be tasty to eat. Comment with examples.

Q.

Which Nutrients are essential for our body?

Q. Which of the following is used to make oil?

1. Mustard
2. Groundnut
3. Wheat
4. Soybean

Q. The components of food which are important for growth and survival of an organism are called nutrients.

1. False
2. True

Q.

The standard unit in which energy from food is measured (and found on nutrition labels on packaged foods) is

1. Kilocalories

2. Ergs

3. Kilojoules

4. Joules

Q. A few plants and all animals are dependent on others for their nutrition and are called

कुछ पादप एवं सभी जंतु अपने पोषण हेतु दूसरे जीवों पर निर्भर होते हैं, इन्हें क्या कहते हैं?

1. Saprotrophs
   
   मृतजीवी
2. Heterotrophs
   
   विषमपोषी
3. Autotrophs
   
   स्वपोषी
4. Lichens
   
   लाइकेन

Q.

Write main sources of food on which human beings depend.

Q.

What is the use of a lactometre?

1. To check the level of solution.

2. To measure temperature of milk.

3. To check the blood pressure in cattle.

4. To check the purity of cow's milk.

Q. Sugar is obtained from the of the sugarcane.

1. stem
2. root
3. fruit
4. leaves

Q. The mode of nutrition in which organisms take in nutrients from dead and decaying matter is called ______ nutrition.

1. parasitic
2. saprotrophic
3. autotrophic
4. symbiotic

Q. What is essential for all living organisms?

1. Milk
2. None of the above
3. To walk
4. Food