Lakhmir Singh Manjit Kaur Solution Class 6 Science 7th Chapter Solution Getting to Know Plants Exercise Solution Very Short Type Questions, Short answer Type Questions, Long Answer Type Questions, MCQ.
Plants are Living Things; Classification of Plants: Herbs, Shrubs and Trees; Climbers and Creepers; Parts of a plant; Roots : Tap Roots and Fibrous Roots; Stem; Leaf : Activities to show that (i) Leaves make Food by Photosynthesis (II) Sunlight is necessary for photosynthesis; Activity to show transpiration in plants; Venation: Reticulate Venation: Reticulate venation and parallal venation; Relationship between venation and Types of roots; Flowers. Fruits and Seeds.
Chapter 7 – Getting To Know Plants
Very Short Type Questions
(1) Ans: Photosynthesis.
(2) Ans: Leaves.
(3) Ans: Chlorophyll.
(4) Ans: Mid-rib.
(5) Ans: Chlorophyll.
(6) (a) Ans: Carbon dioxide.
(b) Ans: Oxygen.
(7) Ans: Transpiration.
(8) Ans: Small beakers, Alcohol, water, Burner etc.
(9) Ans: carbon dioxide, water etc.
(10) Ans: Shrubs.
(11) Ans: Root.
(12) Ans: Root.
(13) Ans: Herbs, Shrubs and Trees.
(14) Ans: Climbers and Creepers.
(15) Ans: (a) leaf stalk: Petiole.
(b) Leaf blade: Lamina.
(16) Ans: (a) Male part of flower: Stamen.
(b) Female part of flower: Pistil.
(17) Ans: Insect, wind and water.
(18) In a flower:
(a) Ans: Fruits.
(b) Ans: Seeds.
(19) Ans: Pistil.
(20) Ans: Pollen.
(21) Ans: Pistil.
(22) Ans: Ovules.
(23) Ans: Parallel venation.
(24) Ans: Tap roots.
(25) Fill in the following blanks with suitable words:
(a) Green plants use sunlight energy to make food. This process is called photosynthesis.
(b) Plants having leaves with reticule venation have tap roots whereas those having leaves with parallel venation have fibrous roots.
(c) The flower is that part of a plant which contains the reproductive organs.
(d) After fertilization, ovary is transformed into fruit and ovules grow into seeds.
(e) The part of a plant which rises vertically up from the ground is called its stem.
(f) Root anchor the plant to the soil.
(g) The money plant having a long and weak stem is called a creeper.
(h) Rose plant is a shrub whereas tomato plant is a herb.
Short Answer Type Questions
(26) Ans: The main parts of a plant are: Roots, Stem, Branches, Leaves, Flowers and Fruits.
- The stem of a plant carries water and minerals from the roots to the leaves and other parts of the plant.
(27) Ans: Shrubs are medium size plant and the trees are tall and big plants.
Example of shrubs: Rose.
Example of trees: Mango.
(28) Herbs – Wheat, Carrot, Cabbage
Shrubs – Henna, Bougainvillea, Lemon
Trees – Coconut, Banyan, Eucalyptus
(29) Ans: The main difference between the climber plants and creeper plants is that climber plants have climbing organs like tendrils but creeper plants have no such climbing organs.
Name of climbers – Pea plant, Grape vine
Name of creepers – Strawberry plant, Money plant
(30) Climbers – Bitter gourd, Grape vine, Pea plant.
Creepers – Strawberry plant, Money plant.
(31) Ans: Tap roots – Pea plant, Neem tree
Fibrous roots – Wheat, Paddy
(32) Ans: Tap roots – Mango, Carrot, Neem tree
Fibrous roots – Wheat, Maize, Grass
(33) Ans: Yes, it’s possible. We can say that by seeing the leaves of a plant.if a plant have reticulate venation it will have Taproot system and if it have parallel venation it will have fibrous root system.
(34) Petal, Ovary, Sepal, Trunk, Leaves, Anther
Which of the above contains (a) pollens (b) ovules (c) bark, and (d) chlorophyll?
Ans: (a) Pollens – Anther
(b) Ovules – Ovary
(c) Bark – Trunk
(d) Chlorophyll – Leaves
(35) Reticulate venation – Tulsi, Neem, Sunflower, Coriander, Mustrad
Parallel venation – Wheat, Maize, Paddy, Banana, Sugarcane
(36) (a) Leaves hold the plant upright.
Ans: Stem holds the plant upright.
(b) Roots conduct water to the leaves.
Ans: Stem conducts water to the leaves.
(c) Stem absorbs water and minerals from the soil.
Ans: Roots absorb water and minerals from the soil.
(d) The number of petals and sepals in a flower is always equal.
Ans: The number of petals and sepals in flower is not always equal.
Long Answer Type Questions
(37) Ans: Herbs: Herbs are small plants having a soft and delicate stem. For example – Tomato, Paddy
Shrubs: Shrubs are medium sized plants with a hard and woody stem, branching out near the base. For example – rose, jasmine.
Trees: Trees are tall and big plants with hard and thick woody stem. For examples – neem, mango.
(38) Ans: That part of a plant which is below the ground is called root.
- Functions of roots:
(i) Roots anchor the plant to the soil.
(ii) Roots absorb water and minerals from the soil.
(iii) Roots help in holding the soil together.
- Roots are mainly of two types:
(i) Tap roots and (ii) Fibrous root.
(39) Ans: The part of a plant which rises vertically up from the ground is called its stem.
- The functions of stem are:
(i) The stem holds the plant upright.
(ii) The stem of a plant carries water and minerals from roots to the leaves and other parts of the plant.
(iii) The stem carries the prepared food from the leaves to other parts of the plants.
(iv) The stem holds the leaves in such a way that the leaves are able to get plenty of sunlight for preparing food by photosynthesis.
(40) Ans: The leaf is a thin, broad, flat and green part of a plant which as attached to the stem.
- The functions of leaves:
(i) The leaves make food for the plant.
(ii) The leaves get rid of excess water from the plant.
(iii) The leaves carry out the process of respiration in plants.
(41) Ans: The main function of flowers is to produce fruits and seeds.
- The main parts of a flower are: Sepals, Petals Stamen and pistil.
(42) Ans: The process by which green plants use sunlight to make food from carbon dioxide and water is called photosynthesis.
- The leaves make food for the plant by the process of photosynthesis.
- Chlorophyll present in the green leaves helps in trapping energy from sunlight.
(43) Ans: Tap root: Tap root is a straight tapering root which grows vertically down into the soil and gives out branches on all the sides.
Example – Pea plant and Neem tree.
Fibrous roots: The fibrous roots consist of many thin, fibre-like roots of a similar size. Example – Paddy and Wheat.
(44) Ans: (a) Stamen: The stamen is the male part of a flower.
(b) Pistil: The pistil is the female part of a flower.
(45) Ans: Venation: The arrangement of veins in the lamina is known as venation of the leaf.
- Types of venation: (i) Reticulate venation and (ii) Parallel venation.
- Relationship between the type of venation:
(i) The plants having leaves with reticulate venation have tap roots.
(ii) The plants having leaves with parallel venation have fibrous roots.
Multiple Choice Questions (MCQs)
(46) Ans: (c) leaves, stem and roots.
(47) Ans: (c) fruit.
(48) Ans: (d) coconut tree
(49) Ans: (c) stem.
(50) Ans: (b) leaves
(51) Ans: (b) male flowers will develop into fruits
(52) Ans: (a) get more sunlight
(53) Ans: (c) root
(54) Ans: (d) seeds
(55) Ans: (b) pine tree
(56) Ans: (c) maize
(57) Ans: (b) rose
(58) Ans: (c) carrot
(59) Ans: (b) strawberry plant
(60) Ans: (d) marigold
(61) Ans: (b) banana
(62) Ans: money plant
(63) Ans: (c) maize
(64) Ans: (c) beet
(65) Ans: (d) transpiration.