Plants

Q.

Name five plants and their parts that we eat?

Q.

Question 16

Label the different parts of the plant given below in figure.

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Q.

Can you name the two parts in a flower in which the two most important units of sexual reproduction develop?

Q. What type of root system is present in grass?

1. Tap roots
2. Fibrous roots
3. Adventitious roots
4. They do not have roots

Q.

What are weeds?Why do farmers remove weeds from their fields?

Q.

Complete the following blanks by choosing the appropriate answer.

Coniferous trees have leaves that are (i)_______.

An example of a coniferous tree is (ii)______.

1. (i) long and thin
   (ii) hyacinth

2. (i) waxy
   (ii) fir

3. (i) needle-shaped
   (ii) pine

4. (i) hollow
   (ii) lily

Q.

Can you eat fish scales?

Q. Pumpkin and watermelon plants are examples of

1. creepers
2. climbers
3. trees
4. shrubs

Q.

Why are the scale leaves in garlic and onion fleshy and thick?

Q.

How much absorbed water is lost during transpiration?

Q.

Which is not a part of a leaf?

1. Petiole

2. Lamina

3. Veins

4. Nodes

Q. Evaporation of excess water from aerial parts of a plant is called .

1. diffusion
2. transpiration
3. osmosis

Q.

Flowers of which plants are used as vegetables?

Q.

Which among the following plants has spines instead of leaves?

1. Marigold
2. Cactus
3. Daisy
4. Banana tree

Q.

The needle shaped structure is a pinus plant is

1. Root

2. Stem

3. Flower

4. Leaf

Q.

Trees are ______ plants that have a single, ​______, and woody stem.​

1. tall, hard​
2. tall, soft​
3. short, hard​
4. short, soft​

Q. Plants can prepare food without sunlight.

1. Annuals
2. Biennials

Q. Explain the structure of a leaf with the help of a labelled diagram. (4 Marks)

Q. Water easily trickles off lotus leaves. Why?

1. Their leaves are thin surfaced.
2. Their leaves have an oily surface.
3. Leaf surface is covered with dead cells.
4. Air spaces are present in the leaves.

Q.

Explain any three stem modifications. [3 MARKS]

Q. Rationalise denominator of 22/2+root3+root5

Q. Which of the following living beings are known for growth throughout their life?

1. Animal
2. Bacteria
3. Human being
4. Tree

Q. Which option is not an adaption of animals living in snowy regions?

1. Long hair on the skin.
2. Thick layer of fat under the skin.
3. Long legs with flat and cushioned soles.
4. White or silvery body colour.

Q.

A wide, thin, flat part of a leaf.

Q. Pumpkin plants are while grape plants are .

1. creepers
2. climbers
3. shrubs
4. trees

Q. It is possible to find out whether a plant has taproot or fibrous roots by looking at the impression of its leaf on a sheet of paper.

1. False
2. True

Q.

Where can one find the fibrous root system?

Q. Undesirable plants that grow along with the crops are called as:

1. Weeds
2. Pests
3. Yield
4. Insects

Q.

State whether the following statements are true or false:​
Statement 1: Stem anchors the plant to the soil.​
Statement 2: Fibrous roots do not have a main root.​

1. Statement 1: True; Statement 2: True​
2. Statement 1: True; Statement 2: False​
3. Statement 1: False; Statement 2: True​
4. Statement 1: False; Statement 2: False​

Q. It is possible to find out whether a plant has taproot or fibrous roots by looking at the impression of its leaf on a sheet of paper.

1. False
2. True