Selina solutions for Concise Biology [English] Class 6 ICSE chapter 1 - The Leaf [Latest edition]

Identify the plant which has compound leaves.

 Tick (✓) the appropriate answer:

Which one of the following is not an insectivorous plant

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This leaf shows parallel venation:

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The point on the stem from where the leaf arises is

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Which one of the following is essential for photosynthesis:

Name the following:

The part of the plant which grows under the ground

Name the following:

The part of the plant which grows above the soil

Differentiate between the following:

Tap root and Fibrous root

Differentiate between the following:

Simple Leaf and compound leaf

Differentiate between the following:

Parallel venation and reticulate venation

What are the four functions of the roots?

Mention the function of the following :

Spines

Mention the function of the following :

Tendril

Mention the function of the following :

Scale leaves

Define venation.

Describe the modifications of leaf in any one insectivorous plant.

Write the two main functions of leaves

What is the modification seen in the Bryophyllum. Explain

Define

Photosynthesis

Define

Tranpiration

Name the wide flat portion of the leaf

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

Explain why leaf survival is so important to the plant?

Give an example of the following and draw generalized diagram for the same:

Simple leaf and compound leaf

Give an example of the following and draw generalized diagram for the same:

Parallel venation and reticular venation

Enlist some of the advantages of transpiration to green plants.

Why do some plants have to trap insects? 

Explain some of the modifications of leaves found in plants. 

What is a tendril? Explain its use to the plant

Complete the crossword using the clues given below. Check your performance with the correct solutions given below

Clues across: 
1. The plant that bears buds in leaves for propagation.
2. The flattened green part of the leaf.
3. Underground plant part.
4. The structure that develops into flower. 
Clues down: 
5. The central big vein of a leaf.
6. A modification seen in cactus.

Fill in the blank

The ends of primary or secondary roots have fine hair-like structures, called ________.

Fill in the blanks

Fibrous roots are found in ________ and __________

Fill in the blank

________fix the plant firmly to the soil. 

Fill in the blank

Banyan trees have ______ roots which provide support to heavy branches

Fill in the blank

_________ roots help in absorbing nutrients from the body of the host

Fill in the blank

_______ is an enlarged, roughly spherical-shaped stem storing food. 

Fill in the blank

The region between two successive nodes of a stem is called ______

State if the following statement IS true or false. Correct the statement if it is false.

The point on the stem from where leaves and branches arise is called Internode

State if the following statement IS true or false. Correct the statement if it is false.

Growth in a terminal bud leads to an increase in the length of the stem 

State if the following statement IS true or false. Correct the statement if it is false.

A rhizome is an enlarged, roughly spherical-shaped stem that stores food

State if the following statement IS true or false. Correct the statement if it is false.

The region between two successive nodes of a stem is called a node

State if the following statement Is true or false. Correct the statement if it is false.

The lamina has a thickened vein along its center called veinlet 

State if the following statement Is true or false. Correct the statement if it is false.

In reticulate venation, veins and veinlets are irregularly distributed over the entire lamina, forming a network.

State if the following statement Is true or false. Correct the statement if it is false.

In a simple leaf, the leaf blade is clearly divided into many distinct parts called leaflets

State if the following statement Is true or false. Correct the statement if it is false.

In an alternate arrangement, a set of three or more leaves grows from the same node

State if the following statement Is true or false. Correct the statement if it is false.

Leaf spines help to reduce the loss of water by transpiration

Tick the most appropriate answer

Which of the following is not a function of the roots?

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The flower is borne on a short stalk called 

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Which of the following roots give mechanical support to the plant?

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The point on the stem where leaves arise is 

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The wide flat part of the leaf is called the 

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The calyx consists of –

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The gynoecium consists of

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Which part of the flower gives rise to the seeds?

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Flowers with either male or female reproductive part are

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The transfer of pollen grains from the anther to the stigma is termed as

Fill in the blanks

The primary root is ______at its origin and _____ at the tip.

Fill in the blank

_____ is the additional roots that arise from the lower part of the stem and fix the plant firmly.

Plants with brightly coloured flowers are usually pollinated by ______.

Fill in the blank

Cone-shaped roots that grow vertically upwards and come out of the ground are known as __________.

Fill in the blank

______is an enlarged, roughly spherical-shaped stem storing food.

Fill in the blank

In a _______leaf, the leaf blade is clearly divided into many parts.

A flower usually has four parts - calyx, corolla, _________, and ________.

Reproduction is a two-step process. The first step is called pollination and the second step is called _______.

Fill in the blank

Fruit is nothing but a ripened _____.

Fill in the blanks

A fruit may have one seed, as in _____or many seeds, as in _____.

Match the definitions with the terms. All the terms will not be used.

State if the following statement Is true or false. Correct the statement if it is false.

The node is the part of the stem between two internodes.

State if the following statement Is true or false. Correct the statement if it is false.

Anther, style and stigma are the parts of a pistil.

State if the following statement Is true or false. Correct the statement if it is false.

A stamen has a long stalk called style.

State if the following statement Is true or false. Correct the statement if it is false.

The transfer of the pollen grains from the anthers to the stigma of a flower is called fertilization.

State if the following statement is true or false. Correct the statement if it is false.

The leaves of Opuntia are modified into thorns.

State if the following statement Is true or false. Correct the statement if it is false.

Ovules develop into fruits.

State if the following statement Is true or false. Correct the statement if it is false.

The stem helps in absorbing water from the soil.

State if the following statement Is true or false. Correct the statement if it is false.

The flat green portion of the leaf is called the leaf blade.

State if the following statement Is true or false. Correct the statement if it is false.

Mango and orange are fruits whereas cucumber and tomato are vegetables.

State if the following statement Is true or false. Correct the statement if it is false.

Cluster of roots of about the same size is present in the fibrous root system.

Find the odd one out. Give reason.

Find the odd one out. Give reason.

Find the odd one out. Give reason.

Find the odd one out. Give reason.

Name the type of stem present in the following.

Potato

Name the type of stem present in the following.

Onion

Name the type of stem present in the following.

Ginger

Name the type of stem present in the following.

Cactus

State the functions of the following.

Leaf spines

State the functions of the following.

Stem tendril

State the functions of the following.

Phylloclade

State the functions of the following.

Stilt roots

We eat different parts of various plants. Write the part of the plant that we eat.

Carrot   ________

We eat different parts of various plants. Write the part of the plant that we eat.

Cucumber __________

We eat different parts of various plants. Write the part of the plant that we eat.

Radish ______

We eat different parts of various plants. Write the part of the plant that we eat.

tomato _________

We eat different parts of various plants. Write the part of the plant that we eat.

Onion   _________

We eat different parts of various plants. Write the part of the plant that we eat.

potato   _________

We eat different parts of various plants. Write the part of the plant that we eat.

ginger   _________

We eat different parts of various plants. Write the part of the plant that we eat.

Sugar can   _________

We eat different parts of various plants. Write the part of the plant that we eat.

Lady's finger   _________

We eat different parts of various plants. Write the part of the plant that we eat.

Mint   _________

We eat different parts of various plants. Write the part of the plant that we eat.

fenugreek   _________

We eat different parts of various plants. Write the part of the plant that we eat.

pea   _________

We eat different parts of various plants. Write the part of the plant that we eat.

Apple   _________

We eat different parts of various plants. Write the part of the plant that we eat.

Groundnut  _________

Differentiate between the following:

Parallel venation and reticulate venation

Differentiate between

terminal bud and axillary bud

Differentiate between the following:

Simple Leaf and compound leaf

Answer the following in short.

Give one example of modification of roots

Answer the following in short.

What are the prop roots?

Answer the following in short.

What is a rhizome

Answer the following in short.

What is venation? State its various types.

Answer the following in detail

State any three functions of the root

Answer the following in detail

What are the main parts of a leaf?

Answer the following in detail

What are the various adaptations in seeds dispersed by animals?

Answer the following in detail

Write two important functions of the stem.

Answer the following in detail

Why are seeds produced in large quantities?

Answer the following in detail

What are the different agents of seed dispersal?

Answer the following in detail

State various adaptations in the seeds dispersed by wind.

Give reasons for the following

The leaves of prickly pear are reduced to spines

Give reasons for the following.

A tomato and an orange are both fruits.