FOOD: WHERE DOES IT COME FROM?

By: Dharmendra Sir

A-VERY SHORT ANSWER QUESTIONS: Answer in one-word

1. Name one food ingredient.         

Ans. -Rice

2. Name the sources of food ingredients.

Ans. Plants and animals

3. Which part of a plant is the source of cooking oil?

Ans. Seeds

4. What is common to cheese, butter, ghee and curd?

Ans. Milk products (Dairy products)

5. What are autotrophs? Name one.

Ans. Green plants

B-SHORT ANSWER QUESTIONS (Answer in 10 to 15 Words)

1.Name four ingredients of food obtained from plants.

Ans. Four ingredients obtained from plants are -

Cereals, Pulses, Vegetables and fruits.

2. Why are green plants called producers?

Ans. Green plants are called producers because they make their own food with the help of carbon dioxide and water in presence of sunlight and chlorophyll.

3. Name the ingredients used in preparing idli.

Ans.

Ingredients to prepare idli	Sources
1-Rice 2-Urad dal 3-Spices 4-Water	plants  plants  plants  city supply etc.

 

4. Name two plants and their parts which are the ingredients of our food.

Ans. (a) Potato ---- stem

        (b) Tomato ---- fruit

5. Name two milching animals. Name three dairy products.

Ans. Two milching animals are cow and buffalo.

             Milk, curd and cheese are three dairy products.

C-LONG ANSWER TYPE QUESTIONS: Answer in 20-25 Words.

1. Why all animals and humans are heterotrophs?

Ans. All animals and humans are heterotrophs because they don't make their own food. They eat the food prepared by plants or eat the meat of the smaller animals.

2. Show by giving suitable examples that animals and human eat different foods.

Ans. Animals such as cows and buffalo eat grass, leaves and plant products, and lion eats flesh of other animals, crow eats grains, small insects and meat.

Human eat food such as rice, pulses, chapati, cereals, vegetables, fruits, milk, idli, dosa, sambhar, meat, eggs etc.

3. Define herbivores and omnivores.

Ans. Herbivores -The animals that eat only grass, plants or plant products are called herbivores. Example-Cow, Deer, Camel, Goat etc.

Omnivores -The animals that eat both plants and meat are called omnivores. Example -Crow, Dog etc.

4. What is food chain? Construct a food chain consisting of Snake, Grasshopper and frog in a grassland.

Ans. The sequence of living organisms in which one organism consumes or eat another to transfer the food energy is called a food chain.

          Example - Grass →Grasshopper →Frog →Snake

5. Some food items are given in the table. Find out the kind of food ingredients in each and mention their sources.

Ans.

Food items	Ingredients required	Sources (Plants/Animals/Both)
Dosa -Sambhar	Rice  Urad dal  Vegetables  Spices  Water	plants  plants  plants  plants  city supply etc.
Matar -Paneer	Matar(Peas)  Spices  Paneer  Water	plants  plants  Animals C ity supply etc.

 

D-TICK THE ODD- ON OUT GIVING EASON

1. Pea pulao, Kheer, Omlette, Idli, Sambhar

Ans. Omlette because its source is animal and of rest others are plants.

2. Turnip, Radish, Potato, Sweet potato

Ans. Potato because it is a stem and rest others are root.

3. Apple, Groundnut, Orange, Banana

Ans. Groundnut because it is a nut and rest others are fruit.

4. Butter, Cheese, Honey, Ice-cream

Ans. Honey because rest others are dairy products.

5. Cow, Deer, Elephant, Dog

Ans. Dog because it is omnivores and rest others are herbivores.

E-DEFINE THE FOLLOWING TERMS

1-ingredients -The things needed to prepare any food item are called it's ingredients or materials.

2-Cereals-Cereals are edible grains obtained from cultivated grasses. They are energy rich food. Example -Rice, Wheat, Maize, etc.

3-carnivores -The animals that eat meat or flesh of other animals are called carnivores. Example -Lion, Tiger, Jackal etc.

4-Milching animals -The animals which produce milk are called milching animals. Example -Cow, Buffalo, Goat etc.

HOTS (HIGH ORDER THINKING SKILLS): Think and Answer

1. Why is carrot red and spinach green?

Ans. Carrot is red because of beta carotene and spinach is green because it has green pigment called chlorophyll.

2. Why can’t a food chain start with a human being?

Ans. A food chain always starts with producers that are the green plants and human being are consumers that's why it can't start with human being.

3. What makes sprouts more nutritious?

Ans. Sprouts are more nutritious because they contain easily digestible protein. They have vitamins and minerals also.