Respiration and Nutrition

Q. Identify the raw materials and products of photosynthesis.

1. Sunlight
2. Water
3. Carbon monoxide
4. Oxygen

Q. During photosynthesis, plants prepare their own food in the presence of sunlight, water and __________.

1. carbon monoxide
2. nitrogen
3. sulphur
4. carbon dioxide

Q. Small openings on surface of leaves are useful for the process of ____________.

1. growth
2. movement
3. reproduction
4. gaseous exchange

Q.

What is known as plant food?

1. Water

2. Air

3. Soil

4. Nutrients

Q. Photosynthesis cannot be performed by a plant if it is not watered for many days.

1. True
2. False

Q. Which of the following is taken in by plants during photosynthesis?

1. Oxygen
2. Carbon dioxide
3. Ozone
4. Nitrogen

Q. Food is generally prepared in the ___________ of a plant.

1. root
2. flower
3. leaf
4. stem

Q.

Which gas is used up during photosynthesis?

Q.

Name the external factors which affect photosynthesis.

Q. Plants breathe through stomata which are present on the
(a) leaves
(b) stems
(c) roots
(d) flowers

Q. Which of the following plants have strong odours?

1. Oleander
2. Lantana
3. Fenugreek
4. Both (a) and (b)

Q. What are the general conditions necessary for photosynthesis?

Q.

State whether the following statements are true or false and write the false statement correctly: Oxygen gas is released during photosynthesis.

1. True
2. False

Q.

Photosynthesis is a process by which green plants prepare their own food in the presence of sunlight and chlorophyll.

1. True
2. False

Q.

One word answer

Name a gas used in photosynthesis.

Q.

Diffusion of gases between the air dissolved in water and the leaf tissues occur through the thin leaf surfaces and the hollow light stems.

1. True

2. False

Q.

Define Photosynthesis.

Q. Where do plants get their raw materials for photosynthesis?

Q.

Of which of the following processes is breathing a part?

1. Respiration

2. Excretion

3. Photosynthesis

4. Digestion

Q.

How plants take air , sunlight and perform gasesous exchanges when the leaves(stomata) gone

Q. Identify the raw materials and end products of photosynthesis.

1. Sunlight
2. Water
3. Argon
4. Oxygen
5. Glucose
6. Nitrogen
7. Carbon dioxide
8. Sucrose

Q. Respiration in plants occurs through a bean shaped part called as ___ .

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. A plant in a pot dies out if not watered for few days because water is necessary for photosynthesis.

1. False
2. True

Q. During respiration in plants, they take in .

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

Q.

How do plants respire in the morning during photosynthesis

Q. Which of the following plants is also called "touch me not"?

1. Rose
2. Mimosa
3. Cactus
4. Jasmine

Q.

Which gas is utilised by plants during the process of photosynthesis?

1. Nitrogen
2. Oxygen
3. Carbon dioxide
4. Hydrogen

Q.

Some aquatic animals like fish have __________ for respiration.

1. lungs

2. spiracle

3. trachea

4. gills