Worksheet on Parts of Plants and Structure of Leaf Class 4

1. Complete the reaction for photosynthesis.

a) A: Sunlight & Glucose, B: Chlorophyll + Oxygen
b) A: Chlorophyll, B: Sugar + Oxygen
c) A: Sunlight, B: Glucose + Water
d) A: Sunlight & Chlorophyll, B: Glucose + Oxygen

Answer: d) A: Sunlight & Chlorophyll, B: Glucose + Oxygen
The complete reaction is:

2. Select the incorrect pairing.

a) Cardamom - Spice
b) Bamboo - Gum
c) Eucalyptus - Medicine
d) Lavender - Essential oil

Answer: b) The incorrect pairing is Bamboo - Gum because bamboo is not used to obtain gum; gum is typically derived from the sap or resin of specific trees.

3. The seed shown in the picture below has a sticky surface. Identify the agent of seed dispersal from the given options.

a) Wind
b) Animals
c) Fruits burst with a sudden jerk
d) Water

Answer: b) The seed with a sticky surface is likely to attach to passing animals' fur or feathers, allowing for dispersal when the animals move to other locations.

4. Select the odd one out.

a)
b)
c)
d)

Answer: c) Sugarcane has fibrous roots whereas turnip, sunflower and carrot have taproots.

5. Match the following.

a) 1:C, 2:A, 3:B
b) 1:B, 2:A, 3:C
c) 1:A, 2:C, 3:B
d) 1:C, 2:B, 3:A

Answer: a) Dandelion: Wind
Coconut: Water
Violet: Bursting of the fruit