Science class 6, Ch.7 (Getting to know plants) Keywords and Solution. PDF Download

Keywords

1. Climbers: The plant which has a weak stem and needs support to stand is called Climbers. Example: Money plant.

2. Conduct: To pass water.

3. Creepers: The plant which does not stand you too weakly but spreads on soil are called Creepers. Example: The Watermelon plant.

4. Fibrous root: The route which is made of many fibres of some size. Example: Grass root.

5. Herbs: The plant has a tender stem and is small in size. Example: The Tomato plant.

6. Lamina: Green blades part of a leaf is called Lamina.

7. Lateral roots: Thread fibre attached to the main root of the taproot.

8. Midrib: The Middle Sim of a leaf is called Midrib.

9. Ovule: The plant egg is present in a structure that is called Ovule.

10. Parallel venation: Arrangement of veins parallel to each other on a leaf.

11. Petal: Colourful part of a flower is called the Petals.

12. Petiole: The part of leaves which is attached to a branch of a plant.

13. Photosynthesis: The process of making food by the plant using CO₂ and H₂O in the presence of sunlight and chlorophyll.

14. Pistil: The innermost part of the flower is the pistil which is the female part of a flower.

15. Reticulate venation: Arrangement of veins on leaf alternate to each other.

16. Sepal-leaf: Structure which protects flowers during the bud stage.

17. Shrubs: The plant which is of medium height and branchy are called Shrubs.

18. Stamen: The male part of a flower is Stamen.

19. Taproot: The root which has the main root attached to the Lateral root.

20. Transpiration: Evaporation of water through stomata and leaves is called transpiration.

21. Trees: The plant which has Woody stems and is longer in height are called trees.

22. Veins: Lines present on the leaf are called veins.

Exercise

Q.1. Correct the following statements and rewrite -

A. Stem absorbs water minerals from the soil.

Ans: Root absorbs water and minerals from the soil.

B. Leaves hold the plant upright.

Ans. Stem holds the plant upright.C. Root conducts water to the leaves.

Ans. Stems conduct water to the leaves.

D. The number of petals and stamens in a flower is always equal.

Ans. The number of petals and stamens is not always equal.

E. If the sepals of a flower join together its Patels are also joined together.

Ans. If the sepals of a flower are joined together, then it is not necessary for the petals to be joined together.

F. If the petals of a flower are joined together its pistil is joined to the petal.

Ans. If the petals of a flower are joined together then it is not compulsory for the pistil to be joined with the petal.

Q.3. Can you find or plant in your house in your neighbourhood that has a long but weak stem and write its name in which category will you place it?

Ans. 

• Money plant: Climbers

• Pumpkin: Creepers

Q.4. What is the function of a stem?

Ans. Functions of Stem:

• Stem holds the plant upright.

• Stem conducts water and minerals to the leaf from the root.

• Stems conduct food from leaves to other parts.

Q.5. Which of the following leaves have reticulate venation? Wheat, tulsi, maize, grass, China rose, coriander.

Ans. Tulsi, China rose and Coriander have reticulate venation.

Q.6. If a plant has fibrous roots, what type of venation do its leaves have?

Ans. Parallel venation

Q.7. If a plant has leaves with reticulate venation, what kind of roots will it have?

Ans. Taproot.

Q.8. Is it possible for you to find out whether a plant has taproot or fibrous roots by looking at the impression of its leaves and on a sheet of paper.

Ans. yes it is possible, if it has parallel venation then the root is a fibrous root and if the leaf has reticulate venation then the root is a taproot.

Q.9. What are the parts of a flower?

Ans. Parts of the flower:

• Petals

• Sepals

• Carpel

• Stamen

Q.10. In which part of a flower will you find the ovary?

Ans. In Carpel.

Q.11. Name the part of a plant that produces food and name the process.

Ans. Leaf produces food in plants by photosynthesis.

Q.12. Name two plants in which one has joined sepals and the other has separate sepals.

Ans. Jointed sepals: China Rose, Sahabhar

Separate sepals: Rose, Lotus

Q.13. 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.

Ans. 

• Grass - No

• Maize - Yes

• Wheat - yes

• Chilli - yes

• Tomato - Yes

• Tulsi - yes

• Peepal - yes  

• Shisham - no

• Banyan - yes

• Mango - yes

• Jamun - yes  

• Guava - yes

• Pomegranate - yes

• Papaya - yes

• Banana - yes

• Lemon - yes

• Sugarcane - no

• Potato - no

• Groundnut - no