Posted by In Chapter 4 of RBSE Class 6 Science, titled “Getting to Know Plants,” students are introduced to the fascinating world of plants. RBSE Solutions for Class 6 Science Chapter 4 – Getting to Know Plants covers the various parts of a plant, their functions, and the types of plants found in nature. Understanding the structure of plants and how each part functions is key to learning about plant growth and reproduction.RBSE Solutions for Class 6 Science Chapter 4 – Getting to Know Plants
Table of Contents
Key Topics Covered in Chapter 4: Getting to Know Plants
- Parts of a Plant
- Roots: The underground part of the plant that anchors it in the soil and absorbs water and nutrients.
- Stem: The above-ground part that supports the plant, transports water and nutrients, and helps in the growth of branches, leaves, and flowers.
- Leaves: The food factories of the plant, responsible for photosynthesis (making food using sunlight).
- Flowers: The reproductive part of the plant that produces seeds.
- Fruits and Seeds: The products of fertilization that contain seeds and help in plant reproduction.
- Types of Plants
- Herbaceous Plants: Plants with soft, green stems.
- Woody Plants: Plants with hard, rigid stems (e.g., trees and shrubs).
- Climbers and Creepers: Plants that either climb up other plants (climbers) or spread along the ground (creepers).
- Functions of Different Plant Parts
- Roots: Anchor the plant, absorb water and minerals, store food.
- Stem: Transport water, minerals, and food, support leaves and flowers.
- Leaves: Carry out photosynthesis, produce food for the plant.
- Flowers: Produce seeds through pollination and fertilization.
- Fruits: Protect seeds and help in their dispersal.
- Reproduction in Plants
- The process of reproduction in plants involves flowers, pollination, fertilization, and the formation of seeds that grow into new plants.
- Types of Pollination
- Self-pollination: When pollen from the same plant fertilizes its own flowers.
- Cross-pollination: When pollen from one plant fertilizes the flowers of another plant.
RBSE Solutions for Class 6 Science Chapter 4 Exercise Questions
1. Correct the following statements and rewrite them in your notebook.
(a) Stem absorbs water and minerals from the soil.
(b) Leaves hold the plant upright.
(c) Roots conduct water to the leaves.
(d) The number of petals and stamens in a flower is always equal.
(e) If the sepals of a flower are joined together, its petals are also joined together.
(f) If the petals of a flower are joined together, then the pistil is joined to the petal.
Solution:
a) Roots absorb water and minerals from the soil.
b) Stem holds the plant upright.
c) Stems conduct water to the leaves.
d) The number of petals and stamens in a flower may not always be equal.
e) If the sepals of a flower are joined together, its petals are separate.
f) If the petals of a flower are joined together, then the pistil may or may not be joined to the petal.
2. Draw (a) a leaf, (b) a taproot and (c) a flower you have studied for Table 7.3
Solution:
a)
b)
c)
3. Can you find a plant in your house or in your neighbourhood which has a long but weak stem? Write its name. In which category will you place it?
Solution:
Yes, lauki (gourd) plant needs support. It is a climber.
4. What is the function of a stem?
Solution:
Following are the functions of a stem
- Stems hold the plant upright.
- Stems conduct water to the leaves.
- Stems conduct food from leaves to other parts of the plant.
5. Which of the following leaves have reticulate venation?
Wheat, tulsi, maize, grass, coriander (dhania), China rose
Solution:
Tulsi, China rose, and coriander have reticulate venation.
6. If a plant has fibrous roots, what type of venation do its leaves have?
Solution:
If a plant has a fibrous root, its leaves have parallel venation.
7. If a plant has leaves with reticulate venation, what kind of roots will it have?
Solution:
If a plant has leaves with reticulate venation, it will have a tap root.
8. Is it possible for you to find out whether a plant has taproot or fibrous roots by looking at the impression of its leaf on a sheet of paper?
Solution:
Yes, it is possible to find whether a plant has taproot or fibrous roots by looking at the impression of its leaf on a sheet of paper.
9. What are the parts of a flower?
Solution:
a) Sepals
b) Petals
c) Stamens
d) Pistil
10. From the following plants, which of them have flowers?
Grass, maize, wheat, chilli, tomato, tulsi, peepal, shisham, banyan, mango, jamun, guava, pomegranate, papaya, banana, lemon, sugarcane, potato, groundnut
Solution:
The plants which have flowers are grass, maize, wheat, chilli, tomato, tulsi, peepal, shisham, banyan (flowers lie inside its fruits), mango, jamun, guava, Pomegranate, papaya, banana, lemon, sugarcane, potato, groundnut
11. Name the part of a plant which produces food. Name the process.
Solution:
Leaves produce food through a process called Photosynthesis.
12. In which part of a flower will you find the ovary?
Solution:
The ovary is found in the lowermost and most swollen part of the pistil.
13. Name two plants in which one has joined sepals, and the other has separate sepals.
Solution:
Plants with joined sepals – Datura and cotton
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FAQs for RBSE Class 6 Science Chapter 4
1. Why are leaves important for plants?
Leaves are crucial for photosynthesis, which is the process through which plants make food. They also help in gas exchange and transpiration.
2. How do roots help plants survive?
- Roots anchor the plant in the soil and absorb essential nutrients and water, ensuring the plant’s growth and survival.
3. What are the two types of pollination in plants?
- The two types of pollination are self-pollination (where pollen from the same plant fertilizes its flowers) and cross-pollination (where pollen from one plant fertilizes another).
4. What is the role of fruits in plants?
- Fruits protect the seeds and help in their dispersal. They may attract animals, which help in spreading the seeds to new areas.
5. What are the different types of plants based on their stems?
- Based on the stem, plants can be categorized into herbaceous plants (soft, green stems), woody plants (hard, thick stems), and climbers and creepers (weak stems).
Conclusion
Chapter 4 of RBSE Class 6 Science introduces students to the fundamental parts of plants and their functions. Understanding these basic structures—roots, stems, leaves, flowers, fruits, and seeds—helps students appreciate the importance of each part in the growth, reproduction, and survival of plants. These concepts are essential for further studies in biology and environmental science, as they form the foundation for understanding plant life.