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Chapter no .2 (Plant kingdom.)
1. Fill in the blanks.
( i ) Plants which prepared their own food through process of photosynthesis are
called autotrophs.
(ii) Structurally fungi are composed of numerous thread like structures called
hyphae.
(iii) Mushroom is an example of fungi.
(iv) Plants in which seeds are not present in the fruit are called conifer .
(v) Plants without vascular tissues are called mosses plants.
2. Put ( T ) mark against correct statement and ( F ) for incorrect statement.
(i) Chlamydomonas is an example of unicellular algae. ( T )
(ii) In conifer, seeds are present in the fruit.
( F )
(iii) Vascular tissues are present in ferns.
( T )
(iv) Conifer are also called as evergreen plants.
( T )
2. Encircle the correct answer in the following.
( i) The group of plants which includes heterotrophs
(a) Algae
(b) Fungi
( c) Mosses
(d ) Ferns
(ii) The group of plants which includes plants without vascular tissues?
(a) Mosses
(b) Ferns
(c ) Conifers
(d) Flowering plants
(iii) Rice plants belongs to the group of plants
(a) Mosses
(b) Ferns
( c) Conifers
(d) Flowering plants
(iv) Plants prepare their food through photosynthesis are called
( a) Parasites
(b) Saprotrophs
(c ) Heterotrophs
(d) Autotrophs
(v) Which of following group of plants consisting to thread like hyphae
(a) Algae
(b) Fungi
(c) Mosses
(d) Ferns
4. Give short answers.
(i) Write down two characteristics of ferns.
Answer. Ferns are adapted to live in cold, shady and humid place. They have
developed roots, stems and leaves; they do not produce flowers, fruits and seeds.
(ii) What are the differences between mosses and ferns?
Answer.
Mosses
Ferns
1. They live both in water and land.
1. They live in land.
2. Mosses lack true roots, stems and leaves.
2.They have well developed roots, stems
and leaves
(iii) Give two differences between Dicots and Monocots?
Answer.
Dicots
Monocots
1.Those plants which have two cotyledons in 1.Monocots have seeds with one cotyledons.
seed are called dicots. For examples pea,
For examples wheat, maize, rice, sugarcane.
rose , sunflower, apple, mango , orange.
2.Long narrow leaves and parallel veins.
2.Their leaves usually broad and having
branches.
(iv) Define decomposers.
Answer. Organisms responsible for breaking down of dead bodies of plants and
animals into simpler chemical substances for example bacteria and fungi.
Q5. Write down the names of different groups of non-flowering plants. Describe
salient features of each group and give two examples.
Answer. Non- flowering plants includes algae, fungi, mosses, ferns and conifers.
Algae:- The occur in fresh water and sea. Algae either floats in water or attached to
stones. Algae are both in unicellular and multi-cellular .Chlamydomonas and
spirogyra are examples of algae.
Fungi:-Are composed of thread like structures called hyphae., fungi are parasites and
obtain their food from other. fungi are thousand of kinds of which some useful some
harmful to mankind. Mushroom used as food for man. we get antibiotics from few
fungi like penicillin.
Mosses:-Mosses are found in cool, moist and shady places. They live both in land
and water. Mosses lack true roots, stem and leaves. Common examples of mosses are
funaria and polytrichum.
Ferns:- Ferns are found in cold , shady and humid places. They have well developed
roots, stems, and leaves. Pteris and adiantum are common examples.
Conifers:- Are found in cold and hilly areas. These plants are evergreen. They have
prominent roots and stem. Their leaves are long , narrow and needle like. Common
examples are deodar, pines and saroo.