Photosynthesis

Q.

What are the characteristics of photosynthesis?

Q. Select the by-products of photosynthesis.

1. Water
2. Glucose
3. Oxygen
4. Carbon dioxide

Q. What is the difference between root system and shoot system?

Q. The given plant cannot prepare its own food. Identify the reason.

1. Non-green leaves
2. Less sunlight
3. Black soil
4. White-coloured stem

Q.

The process by which leaves manufacture food is called ______.

Q.

Name the gas used in photosynthesis.

Q.

Plants produce their food only during _______

Q.

"Synthesis" in photosynthesis means -

1. Putting together

2. Absorption

3. Food

4. Plant

Q.

Which of the following are the end products of photosynthesis?

1. Glucose and carbon dioxide

2. Glucose and alcohol

3. Glucose and water

4. Glucose and oxygen

Q.

Plants and animals cannot survive without air.

1. True
2. False

Q.

Name the part of the plant which produces food.

1. Stems
   

2. Roots

3. Flowers

4. Leaves

Q. is the process by which green plants prepare their own food in the presence of sunlight.

1. Photosynthesis
2. Respiration
3. Cooking
4. Digestion

Q.

How does photosynthesis affect plant growth?

Q. Trees give us the oxygen we breathe.

1. True
2. False

Q. _________ produce their food by the process of photosynthesis.

1. Plants
2. Animals
3. Humans
4. Microbes

Q. Plants produce glucose during __________.

1. plantation
2. germination
3. reproduction
4. photosynthesis

Q. In cactus, the _______ performs photosynthesis.

1. spines
2. roots
3. seeds
4. stem

Q. Some plants store their extra food in their leaves

1. True
2. False

Q. Which of the following are required to perform photosynthesis?

1. Glucose and water
2. Water and oxygen
3. Carbon dioxide and water
4. Oxygen and carbon dioxide

Q. Choose the insects that feed on nectar in flowers.

1. Butterfly
2. Housefly
3. Bee

Q. In the cactus plant, the leaves have evolved into narrow spines to prevent .

1. water loss
2. water retention
3. water storage

Q. _______ absorbs the energy from the sun to prepare food for the plants.

1. Roots
2. Chlorophyll
3. Flowers
4. Seeds

Q. During photosynthesis plants prepare their own food in the presence of sunlight, from soil and from air.

1. oxygen
2. nitrogen
3. water
4. carbon dioxide

Q. Match different parts of Khejadi tree with their characteristics.

1. Unaffected by insect
2. Eaten by humans
3. Eaten by animals

Q.

Plants take carbon dioxide from the atmosphere mainly through their __________.

Q. Some plants store their extra food in their leaves

1. True
2. False

Q. _________________ is the process by which green plants prepare their own food in the presence of sunlight.

1. Absorption
2. Photosynthesis
3. Digestion
4. Cooking

Q. _______ absorbs the energy from the sun to prepare food for the plants.

1. Roots
2. Chlorophyll
3. Flowers
4. Seeds

Q.

72 The component of air used by green plants to make their food is ……….

Q.

Plants do not require ___ for photosynthesis.

1. Water

2. Nitrogen

3. Sunlight

4. Carbon dioxide