Classification of Plants Online Test

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Classification of Plants

Description: ICSE,VI
Number of Questions: 20
Created by: Darshan Khurana
Tags: ICSE VI Classification of Plants

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Why are algae called thallophytes?

As they are unicellular.
As they are autotrophic.
As they have undifferentiated body.
As they float on ponds and stagnant pools.

Why are bryophytes called cryptogams?

As they contain photosynthetic pigments.
As they do not bear flowers.
As they do not have true roots, stems and leaves.
As they can make their own food.

Why is mushroom called 'heterotrophic'?

As it causes diseases.
As it depends on others for food.
As it reproduces though spores.
As it helps to make wine and bread.

What are underground stems of ferns called?

Sori
Frond
Rhizome
Spore

Which of the following is not a characteristic feature of algae?

Unicellular
Aquatic
Heterotrophic
Grow in fresh or sea water

Why are fungi called saprophytes?

As they grow on dead or decaying plants.
As they grow on living plants and animals.
As they cause skin infections to human beings.
As they reproduce through spores.

Which of the following is not a characteristic feature of ferns?

They have true roots, stems and leaves.
They are predominantly land plants.
They produce flowers and seeds.
Their leaves are divided into leaflets.

Why are bryophytes called 'amphibians of the plant kingdom'?

Because they respire in water.
Because they reproduce by spores.
Because they live in water and on land.
Because they grow on damp walls and tree trunks.

Seeds of which of the following plants have only one cotyledon?

Pea and bean
Groundnut and almond
Rice and wheat
Bean and rice

Which of the following is not a characteristic feature of gymnosperms?

They have well developed roots, stems and leaves.
Their seeds are enclosed in fruits.
They produce spores.
They are tall and bear stout stems.

Why are angiosperms called 'closed-seeded plants'?

Because seeds are enclosed in fruits.
Because seeds are divided into two parts.
Because seeds are enclosed in a thick covering.
Because radicle and plumule are present inside the seeds.

Match the following:


1. Algae	i. Bryophytes
2. Mushroom	ii. Thallophytes
3. Moss	iii. Pteridophytes
4. Fern	iv. Fungi

1 - i, 2 - iv, 3 - ii, 4 - iii
1 - ii, 2 - iv, 3 - i, 4 - iii
1 - iii, 2 - ii, 3 - iv, 4 - i
1 - iv, 2 - ii, 3 - iv, 4 - i

Why grams are called dicotyledonous plants?

Because their seeds contain both root and shoot system of the plant.
Because their seeds can be divided into two parts.
Because they possess double layer over their seeds.
Because they germinate only during favourable conditions.

Why is mango tree called as perennial?

As it produces edible fruits.
As it lives for many years.
As it has hard and stout stem.
As it sheds its leaves during winters.

Some plants like rice and wheat, complete their entire process in few months. What are such plants called?

Biennials
Annuals
Perennials
Dioecious

Why are Indian aloe and plum called xerophytes?

Because they live in water bodies.
Because they can grow in dry soil.
Because they are partially submerged in water.
Because they can grow in tropical rain forests.

Match the following:


1. Rhizome	i. Reproductive organs
2. Fronds	ii. Underground stem
3. Sori	iii. Leaves
4. Cones

1 - ii, 2 - iii, 3 & 4 - i
1 - ii, 2 & 3 - iii, 4 - i
1 - iii, 2 & 4 - i, 3 - ii
1 & 2 - ii, 3 - iii, 4 - i

Which among the following statements is incorrect?

Dodder is a common parasitic angiosperm.
The leaves of Indian spinach are thick due to storage of water.
Saprophytic plants feed on living plants.
Autotrophic plants prepare their own food with the help of chlorophyll and sunlight.

Match the following:


1. Radish	i. Shrub
2. Neem	ii. Herb
3. Basil	iii. Hydrophytes
4. Lotus	iv. Perennial

1 - i, 2 - iv, 3 - ii, 4 - iii
1 - ii, 2 - iv, 3 - i, 4 - iii
1 - iii, 2 - ii, 3 - iv, 4 - i
1 - iv, 2 - ii, 3 - iv, 4 - i

Correct Option: B

Explanation:


1. Radish	ii. Herb
2. Neem	iv. Perennial
3. Basil	i. Shrub
4. Lotus	iii. Hydrophytes

Match the following:


1. Water hyacinth	i. Mesophyte
2. Teak	ii. Xerophyte
3. Cactus	iii. Hydrophyte
4. Pine

1 - i, 2 & 3 - ii, 4 - iii
1 - ii, 2 - i, 3 & 4 - iii
1 & 4 - iii, 2 - ii, 3 - i
1 - iii, 2 & 4 - i, 3 - ii

Correct Option: D

Explanation:


1. Water hyacinth	iii. Hydrophyte
2. Teak	i. Mesophyte
3. Cactus	ii. Xerophyte
4. Pine	i. Mesophyte

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