A. Tick the correct answer:-
1. B 2. C 3. B 4. C 5. D
B. Differentiate between the following:-
1. Plants that cannot stand upright and spread on the ground are called creepers, like mint.
Plant which climb up with the support of neighbouring structures are called climbers.
2. Tap root is a root where main road goes down and branches gives out side roots .e.g pea
Fibrous root system - A cluster of the fibre like roots at the base of the stem are called fibrous root.
3. Root-The part of a plant that grows under the ground.
Stem-Part of a plant above the ground from which the leaves of flowers grows.
4. Reticulate venation-Veins form a network.
Parallel venation- Veins run parallel to each other.
C. Give one word answer for each of the following:-
1. Stem and root 2. root system 3. shoot system 4.stem, branch, fruit,flower 5. taproot , fibrous root 6. Taproot , fibrous root.
D. Match column a with column b:-
1. Mango 2. maize 3. grapevine 4. leaf 5. flower.
E. Give two examples for each of the following:-
1. Coriander ,mint 2.rose, China rose 3. cucumber ,grapevine 4. Melon,pumpkin.
F. Give reason for each of the following:-
1. Plants and creepers need support for better production.
2. Modification of roots for food storage, for extra support,as support root (stilt root) .
Modification of stem to give support, to make food, to store food.
3. To make food
Extra water leave by transpiration process from leaf
Presence of xylem tissues in root.
4. Pollination is very important for the fertilization of flowers. Fertilization flowers develop the states which then germinate into flowering plants.
G. Write true or false:-
1. False 2. False 3. True 4. True 5. False.
H. Circle the odd one out:-
1. Aquatic plants 2. Mustard 3. Grass 4. Pitcher plant.
I. Fill in the blanks:-
1. Photosynthesis 2. Pollination 3. Water , gases 4. Node 5. Reproductive.
J. Short answer question:-
1.Herbs are the plant slightly above the level of grass.
Shrubs are more higher than the herbs.
2.A tall plant that can live a long time.e.g. Mango tree, BlackBerry tree
3.Plants that cannot stand upright and spread on the grounds are called creepers. e.g. gourd plant
Plants which climb up with the support of neighbouring structures are called climbers.e.g. money plant
4.Parts of a plant are-root,stem,branch and flowers.
5. Tendril is a curling stem of a plant.
It clings a plant to the other structure.
6. Seed by the process of germination give future plant.
K. Long answer question:-
1.Various types of plant are-
Herb, shrub creeper climber and tree.
Plants that cannot stand upright and spread on the ground are called creepers.e.g mint.
Plant which climb up with the support of neighbouring structure are called climbers.e.g. money plant.
Herbs are the plant slightly above the level of grass.
Shrubs are more higher than the herbs.
Tree is a tall plant that can live a long time.e.g. Mango trees, BlackBerry tree.
2. Plant can be classified on the basis of their colour, habitat, nutrition and flowering pattern. Another way of plant classification is based on their size and the nature of their stem.
Herbs- As per biology, herbs are the plant that are used for food, flavour and medicine
Shrubs-These plants are slightly higher than herbs.e.g. rose,China rose.
Creepers- Plants that cannot stand upright and spread on the grounds are called creepers, like mint and gourd plants.
Climbus-Plants which climb up with the support of neighbouring structure are called climbers. example money plant.
Tree-A tall plant that can live a long time example Mango tree blackberry tree.
3. Parts of a plant-There are two parts of the plants the root system and the shoot system. The root system is usually beneath the ground and The suite system is on the above the surface of soil and consist of stem, leaves and flowers.The part of the plant above the soil is generally green. It is erect at is called the stem. The stem bears leaves at intervals. The particular point on the stem from which each leaf arises is called a node. The path in between two nodes is an antinode.
4. Tap root is a root where main root goes down and branches gives out side roots.e.g. pea
Fibrous root system-A cluster of fibre like roots at the base of the stem are called fibrous root.
Modification of roots for food storage, for extra support,as stilt root.
Modification of stem to give support, to make food, to store food.
5. The part of the plant above the soil is generally green. It is erect and is called the stem. The stem bears leaves at intervals. The particular point on the stem from which each leaf arises is called node. The path in between two nodes is an antinode.
Functions of the stem are-
Stem helps to keep the plant upright
A stem bears the leaves, flowers and fruits
The stem carries water and minerals from the roots to different parts of the plants
The stem carries the food manufactured by the leaves.
Modification of stem to give support,to make food, to store food
6. The leaf blade has many fine veins forming a network in the leaf blade. The arrangement of veins in the leaf blade is called venation.
Various types of venation are parallel venation and reticulate venation.
In parallel venation veins of the leaf are parallel to each other e.g.Banana leaf
In reticulate venation veins of the leaf form a complicated pattern e.g. jackfruit leaf.
7. Flowers differ in shapes, size and colours but all flower have same basic parts. There are some green leaf like structures in the outermost circle of a flower. These are called sepals. Next to sepals, coloured and attractive leafy structure are present. These are petals. They attract insects and other animals. Stamens are the male part of a flower. Each stamen has a swollen tip called anther which is present on stalk called filament. Anthers are filled with pollen grains. In the centre, a flask shaped carpel is present. It is also called pistil. It is the female part of a flower. Each carpel is divisible into stigma, style and ovary. Ovary contains ovules.
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