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)
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
1. What are the different parts of leaves?
The stem is the plant's support system, holding up leaves, flowers, and fruits. The different parts of leaves are:
2. What are the main parts of a plant?
Plants contain various major parts, including roots, stems, leaves, flowers, and fruits. Every part helps the plant's growth and survival.
3. How does photosynthesis occur in leaves?
Photosynthesis occurs in the chloroplasts of leaf cells. Chlorophyll is a green pigment that captures sunlight, and along with carbon dioxide and water, converts them into glucose (food) for the plant.
4. How are fruits formed in a plant?
After pollination and fertilisation, the flower's ovary develops into a fruit, which protects and releases the seeds.
5. What is the function of a plant's roots?
Roots hold the plant in the earth and absorb water and nutrients from the soil. They act as a food storage facility for the plant.
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