1. Correct the following statements and rewrite them in your notebook.
(a) Stem absorbs water and minerals from the soil.
Answer:
- Root absorbs water and minerals from the soil.
(b) Leaves hold the plant upright.
Answer:
- Stem hold the plant upright.
(c) Roots conduct water to the leaves.
Answer:
- Stem conduct water to the leaves.
(d) The number of petals and sepals in a flower is always equal.
Answer:
- The number of petals and sepals in a flower may or may not be equal.
(e) If the sepals of a flower are joined together, its petals are also joined together.
Answer:
- If the petal of flowers is joined together, its sepals may or may not joined together.
(f) If the petals of a flower are joined together, then the pistil is joined to the petal.
Answer:
- If the petals of a flower are joined together, then the pistil may or may not joined to the petal.
3. Can you find a plant in your house or in your neighborhood, which has a long but weak stem? Write its name. In which category would you classify it?
Answer:
- Money plant; It is long but has a weak stem. It can be categorized as a climber.
4. What is the function of a stem in a plant?
Answer:
The following are the function of stem:
- Stem uphold plant upright or stem bears leaves, flower, and fruits.
- Supply nutrients and water to leaves for photosynthesis and supply food to all parts of plants from leaves.
5. Which of the following leaves have reticulate venation?
Wheat, tulsi, maize, grass, coriander (dhania), China rose
Answer:
Net like venation on both side of the midrib is called reticulate venation.
The following have reticulate venation:
- Tulsi
- Coriander
- China rose
Wheat and grass have parallel venation.
6. If a plant has a fibrous root, what type of venation do its leaves likely to have?
Answer:
- Parallel Venation
7. If a plant has leaves with reticulate venation, what kind of roots will it have?
Answer:
- Taproots
8. Is it possible for you to recognize the leaves without seeing them? How?
Answer:
Yes, it is possible by seeing the root.
If the root is taproot then leaves will have reticulate venation otherwise leaves will have parallel venation.
9. Write the names of the parts of a flower.
Answer:
The following are parts of a flower:
- Sepal: leaves like structure; it is generally in green color.
- Petals: Prominent part of the open flower is called the petal. It is generally in colorful.
- Pistil: Innermost the flower is called Pistil.
- Stamen
10. Which of the following plants have you seen? of those that you have seen, which one has flowers?
Grass, maize, wheat, chili, tomato, tulsi, pipal, Shisham, banyan, mango, Jamun,
guava, pomegranate, papaya, banana, lemon, sugarcane, potato, groundnut
Answer:
- All of the above plants have flowers.
11. Name the part of the plant which produces its food. Name this process.
Answer:
- Green Leaves produce food by photosynthesis process.
- the leaf makes food in the presence of Sunlight and takes Co2, Minerals, and water as input, and produces a carbohydrate(starch) and oxygen as output.
12. In which part of a flower, you are likely to find the ovary?
Answer:
- Pistil
13. Name two flowers, each with joined and separated sepals.
Answer:
Joined sepals: Tomato and Dhatura,
Separated sepals: Lotus, rose, cactus
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