Selina solutions concise biology class 6 icse Solutions for Chapter 1 the leaf

Q1) Tick the appropriate answer:

(i) Identify the plant which has compound leaves

(a) Banana

(b) Banyan

(c) Mango

(d) Rose

(ii) Which of the following is not an insectivorous plant:

(a) Pitcher plant

(b) Venus flytrap

(c) Bladderwort

(d) Cactus

(iii) This leaf shows a parallel venation:

(a) Banana

(b) Mango

(c) Banyan

(d) Guava

(iv) The point on the stem from where the leaf arises is

(a) Petiole

(b) Lamina

(c) Node

(d) Trunk

(v) Which of the following is essential for photosynthesis:

(a) Carbon dioxide

(b) Nitrogen

(c) Oxygen

(d) Soil

Q2) Name the following

1. The part of the plant which grows under the ground.

2. The part of the plant which grows above the soil.

Q3) Differentiate between the following:

(i) Tap Root and FIbrous Root

(ii) Simple Leaf and Compound Leaf

(iii) Parallel Venation and Reticulate Venation

Q4) What are the four functions of the roots?

Q5) Mention the functions of the following:

(i) Spines

(ii) Tendril

(iii) Scale leaves

Q6) Define venation. What are the different types of venation found in the leaves?

Q7) Describe the modification of leaf in any one insectivorous plant.

Q8) Write the two main functions of leaves.

Q9) What is the modification seen in the Bryophyllum. Explain.

Q10) Define:

(i) Photosynthesis

(ii) Transpiration

Q11) Name the wide flat portion of the leaf.

Q12) What purpose is served by the spines horned on the leaves of cactus?

Q13) Explain why leaf survival is so important to the plant?

Q14) Give an example of the following and draw generalized diagrams for the same:

(i) Simple leaf and Compound leaf

(ii) Parallel Venation and Reticulate Venation

Q15) In list some of the advantages of transpiration to green plants.

Q16) Why do some plants have to trap insects?

Q17) Explain some of the modifications of leaves found in plants.

Q18) What is a tendril? Explain its use to the plant.

Q19) Complete the cross word using the clues given below. Check your performances with the correct solutions given at the end of the chapter.

Clues across:

1. Plant that bears buds in leaves for propagation.
2. The flattened green part of leaf.
3. Underground plant part.
4. Structure that develops into flower.

Clues down:

5. The central big vein of a leaf
6. A modification seen in of cactus