Question 1

What are the components of food that provide energy, build and repair the body, and protect from diseases?

Accepted Answer

Nutrients

Answer

Minerals

Answer

Carbohydrates

Answer

Vitamins

Question 2

Which of the following is an example of a carbohydrate?

Accepted Answer

Rice

Answer

Cheese

Answer

Fish

Answer

Meat

Question 3

Which nutrient is known for being energy-giving and found in oil and butter?

Accepted Answer

Fats

Answer

Proteins

Answer

Vitamins

Answer

Carbohydrates

Question 4

Which nutrient is essential for body-building and found in pulses and eggs?

Accepted Answer

Proteins

Answer

Carbohydrates

Answer

Minerals

Answer

Fats

Question 5

What is the mode of nutrition where organisms make food for themselves from simple substances?

Accepted Answer

Autotrophic

Answer

Heterotrophic

Answer

Saprotrophic

Answer

Symbiotic

Question 6

What is the process by which plants make their own food using sunlight, carbon dioxide, and water?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Symbiosis

Answer

Nitrogen fixation

Question 7

What are the raw materials used in photosynthesis?

Accepted Answer

Water, minerals, and sunlight

Answer

Water, minerals, and nitrogen

Answer

Water, oxygen, and minerals

Answer

Oxygen, minerals, and sunlight

Question 8

Which pigment helps leaves capture the energy of sunlight for photosynthesis?

Accepted Answer

Chlorophyll

Answer

Xanthophyll

Answer

Anthocyanin

Answer

Carotene

Question 9

What are the end products of photosynthesis?

Accepted Answer

Carbohydrates and oxygen

Answer

Glucose and carbon dioxide

Answer

Glucose and nitrogen

Answer

Carbohydrates and minerals

Question 10

What does the presence of starch in plants indicate?

Accepted Answer

Photosynthesis

Answer

Symbiosis

Answer

Nitrogen fixation

Answer

Respiration

Question 11

How do plants absorb nitrogen from the soil?

Accepted Answer

Through roots

Answer

Through flowers

Answer

Through stomata

Answer

Through leaves

Question 12

What is an example of a parasitic plant?

Accepted Answer

Cuscuta

Answer

Fungi

Answer

Mushroom

Answer

Pitcher plant

Question 13

What is an example of an insectivorous plant?

Accepted Answer

Pitcher plant

Answer

Rhizobium

Answer

Fungi

Answer

Cuscuta

Question 14

How do saprotrophic plants obtain nutrients?

Accepted Answer

From dead and decaying matter

Answer

From other plants

Answer

From the air

Answer

From insects

Question 15

What is an example of a symbiotic relationship in plants?

Accepted Answer

Rhizobium and legumes

Answer

Pitcher plant and insects

Answer

Fungi and insects

Answer

Cuscuta and host plant

Question 16

What is the role of Rhizobium bacteria?

Accepted Answer

Convert nitrogen into a usable form

Answer

Convert carbon dioxide into glucose

Answer

Convert oxygen into a usable form

Answer

Convert sunlight into energy

Question 17

Why do farmers add fertilizers to the soil?

Accepted Answer

To replenish lost nutrients

Answer

To increase water content

Answer

To kill pests

Answer

To increase sunlight exposure

Question 18

What are stomata?

Accepted Answer

Tiny pores on leaves

Answer

Leaf veins

Answer

Root hairs

Answer

Pigments in leaves

Question 19

What relationship is called symbiosis?

Accepted Answer

Organisms share nutrients and shelter

Answer

Organisms compete for food

Answer

One organism lives on another

Answer

One organism eats another

Question 20

Which of the following is a protective food?

Accepted Answer

Oranges

Answer

Pulses

Answer

Meat

Answer

Butter

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