NCERT Class 6 Science Chapter 7 Getting to Know Plants

NCERT Class 6 Science Chapter 7 Getting to Know Plants Solutions to each chapter is provided in the list so that you can easily browse through different chapters NCERT Class 6 Science Chapter 7 Getting to Know Plants and select need one. NCERT Class 6 Science Chapter 7 Getting to Know Plants Question Answers Download PDF. NCERT Class 6 Science Solutions.

NCERT Class 6 Science Chapter 7 Getting to Know Plants

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Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. CBSE Class 6 Science Solutions are part of All Subject Solutions. Here we have given NCERT Class 6 Science Chapter 7 Getting to Know Plants and Textbook for All Chapters, You can practice these here.

Getting to Know Plants

Chapter: 7

NCERT TEXT BOOK EXERCISES

Q. 1. Correct the following statements and rewrite them in your note book:

(a) Stem absorbs water and minerals from the soil.

Ans: Root absorbs water and minerals from the soil.

(b) Leaves hold the plant upright. 

Ans: Stem holds the plant upright. 

(c) Roots conduct water to the leaves.

Ans: Stem conducts water to the leaves.

(d) The number of petals and sepals in a flower in always equal. 

Ans: The number of sepals and petals in a flower are equal.

(e) If the sepals of a flower are joined together, its petals are joined to the petals. 

Ans: If the sepals of a flower are joined together, its petals are not joined together.

(f) If the petals of a flower are joined together then the pistil is joined to the petal.

Ans: If the petals of a flower are joined together, its pistil is not joined together.

Q.2. Draw (a) a leaf

(b) a tap root. and 

(c)a flower.

Ans: 

Q.3. Can you find a plant in your house or in your neighbourhood which has a long but a weak stem? Write its name. In which category would you classify it?

Ans: The plant found in our house is money plant, which has weak and long stem. Such type of stem needs support and they are called climbers. Gourd plant and grapevine also have climber stems.

Q. 4. What is the function of a stem in a plant?

Ans: Functions of a stem in a plant:

(i) The stem holds the plants upright. 

(ii) The stem of a plant carries water and minerals from the 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 plant.

(iv) The stem holds the leaves in such a way that the leaves are able to get plenty of sun light for preparing food by photosynthesis.

Q. 5. Which of the following leaves have reticulate venation? Wheat, Tulsi, Maize, Grass, Coriander (Dhania), China rose. 

Ans: Tulsi, China rose. 

Q. 6. If a plant has fibrous root, what type of venation do its leaves likely to have?

Ans: Parallel venation.

Q. 7. If a plant has leaves with reticulate venation, what kind of roots will it have?

Ans: The root of plants will be tap root. 

Q. 8. Is it possible for you to recognize the leaves without seeing them? How?

Ans: Yes, we can recognize the leaves without seeing. We can recognize leaves by touching or by smelling.

Examples: Sugarcane, Bananas, Maize Podina, Dhania etc.

Q. 9. Write the names of the parts of a flower.

Ans: Parts of a flower: 

(i) Sepals.

(ii) Petals. 

(iii) Stamens. 

(iv) Pistil.

Q. 10. Which of the following plants have you seen? Of those you have seen, which one have flowers.

Grass, maize, wheat, chilli, tomato, tulsi, pipal, shisham, banyan, mango, jamun, guava, pomegranate, papaya, banana, lemon, sugarcane, potato, groundnut.

Ans: The following plants have flowers:

Q.11. Name the part of the plant which produces it’s food. Name this process.

Ans: Leaf, produces their own food. The process of producing food by leaves is called photosynthesis.

Q. 12. In which part of a flower you likely to find the ovary? 

Ans: The ovary is found in pistil part of a flower.

Q. 13. Name two flowers, each with joined and separated sepals.

Ans: Flowers with joined sepals: 

(i) Gurhal. 

(ii) Mustard.

Flowers with separate sepals:

(i) Datura. 

(ii) Loki.

SOME OTHER IMPORTANT QUESTIONS FOR EXAMINATION

VERY SHORT ANSWER QUESTIONS

Q. 1. Name the process by which plants make food.

Ans: Photosynthesis.

Q. 2. Name any two herbs.

Ans: Tomato, Cabbage.

Q. 3. What are non-flowering plants?

Ans: The plants which do not bear flowers are called non-flowering plants.

Q. 4. Give two examples of non-flowering plants.

Ans: Moss, fern.

Q. 5. Name two climbers. 

Ans: Pea plant, Bitter gourd.

Q. 6. Name two creepers. 

Ans: Money plant, Straw-berry plant.

Q.7. What Kind of roots does a mustard plant have?

Ans: Tap root.

Q.8. Name a plant whose modified root is also used by us as food.

Ans: Sweet potato.

Q. 9. Name two modified stems.

Ans: Ginger, onion.

Q. 10. Name the part of plant which helps in holding the plant in the soil.

Ans: Roots. 

Q.11. Give names of two plants which have tap root.

Ans: Gram and mustard.

Q.12. Name two plants which have aerial roots.

Ans: Sugarcane, banyan tree. 

Q. 13. Name two underground stems.

Ans: Potato, yams.

Q. 14. Name one plant which stores food in their leaves.

Ans: Onion.

Q. 15. (a) Name a gas used in photo- synthesis.

Ans: Carbon dioxide.

(b) Name a gas produced in photo- synthesis.

Ans: Oxygen.

SHORT ANSWER QUESTIONS

Q.1. What are herbs? Give two examples.

Ans: Herbs are small plants with a green soft stem. They do not grow more than three to four feet in height.

Examples: Mustard, Sunflower.

Q.2. What are shrubs? Give two examples.

Ans: Shrubs are medium – sized plants with hard and woody stems. Many branches are seen rising just above the ground.

Examples: Lemon, Rose.

Q.3. What are trees? Give two examples.

Ans: Trees are tall and big plants with hard and thick woody stem. The branches in a tree appear higher up on the stem (much above the ground).

Examples: Teak, Eucalyptus. 

Q. 4. What are creepers. Write two examples.

Ans: A plant having thin, long and weak stem which cannot stand upright and spreads on the ground is called a creeper. 

Examples: Strawberry plant and Money plant. 

Q. 5. What are climbers? Write two examples.

Ans: A plant having thin, long and weak stem which cannot stand upright but readily climbs up a neighbouring support (like a fence) or a tree is called a climber.

Examples: Grape vine, Bottle gourd (Lauki). 

Q. 6. Write two primary functions of a root.

Ans: (i) Fixation: It fixes the plant firmly in the soil. 

(ii) Absorption: The root hairs help in the absorption of water and minerals from the soil.

Q. 7. Which type of leaf shows: 

(a) Reticulate venation?

Ans: The design made by the veins in a leaf is called leaf venation. If this design is net like on both the sides of midrib, the venation is called reticulate. Leaves of the plants having tap roots show reticulate venation.

(b) Parallel venation?

Ans: If the veins are parallel to each other, the venation is called parallel venation. Leaves of the plants having fibrous roots show parallel venation.

Q.8. Differentiate between flowering plants and non-flowering plants.

Ans: 

Q. 9. What is root of a tree? Name plants having tap roots and two plants which have fibrous roots.

Ans: Root: That part of a plant which is below the ground in the soil is called root.

Plants having tap roots are: Pea plant and Marigold.

Plants having fibrous roots are wheat, maize.

Q. 10. Mention the reproductive parts of a flower.

Ans: Stamens are the male reproductive parts and the carpels (pistil) are the female reproductive parts of a flower. Each stamen has anther and filament. Anther produces pollen grains which possess male gametes. Each carpel (pistil) has stigma, style and ovary. The ovules situated inside the ovary possess gamete.

SHORT ANSWER QUESTIONS

Q. 1. Write three functions of the leaves. 

Ans: The leaves of plants have three main functions:

(i) The leaves make food for the plant by photosynthesis.

(ii) The leaves get rid of excess water from the plant through transpiration. 

(iii) The leaves carry out the process of respiration in plants which is the production of energy from food.

Q.2. Distinguish between roots and stems.

Ans: 

Q. 3. Name the male part of a flower. Write names of the parts and draw a diagram.

Ans: The male part of a flower is called stamen. It has two parts 

(i) Filament. and 

(ii) Anther.

Q. 4. Name the female part of a flower. Write names of its parts and draw a diagram.

Ans: The female part of a flower is called pistil. It has three parts: 

(i) Stigma.

(ii) Style. and 

(iii) Ovary.

Q.5. Write three differences between tap root and fibrous root.

Ans: 

Q.6. Draw a labelled diagram of a flower.

Ans: 

Q. 7. Draw a labelled diagram of a plant showing its various parts.

Ans: The various parts of a plant are shown on the diagram given below:

Q. 8. What is pollination? Describe cross-pollination.

Ans: Pollination is the transfer of pollen grains from the open anther of the stamen to the receptive stigma of the carpel (pistil). 

Cross-pollination: It involves the transfer of pollen grains from the flower of one plant to the stigma of the flower of another plant of the same species. This transfer occurs through wind, water, animals, insects, birds and bats.

Q. 9. Classify the following as herbs, shrubs and trees:

Jasmine, Rose, Palm, Mustard, Radish, Neem, Mango, Sunflower, Tulsi

Ans:  

Q. 10. What are the functions of a flower?

Ans: (i) A flower is the seat or organ of sexual reproduction and results in the formation of fruits and seeds. Seeds on germination give rise to new plants. A flower, thus, results in multiplication of plants.

(ii) It is the source of food for many insects. For example, bees collect nectar from flowers and make honey.

(iii) Flowering plants are grown in gardens and in homes because of the bright and fragrance of the flowers. Thus, they beautify the surroundings and provide aesthetic value.

LONG ANSWER QUESTIONS

Q. 1. The flower of a plant has two reproductive organs X and Y. The organ Y is flask-shaped whose sticky top part is A, the central part is a long tube B and the swollen part at the bottom is C. The part C contains tiny structure D. The organ Y consists of a long stalk having a swollen top E. The top E contains a powdery substance F.

(a) What are (i) X and (ii) Y?

Ans: (i) Pistil. 

(ii) Stamen.

(b) Name (i) A, (ii) B, (iii) C and (iv) D.

Ans: (i) Stigma.

(ii) Style. 

(iii) Ovary. 

(iv) Ovules. 

(c) What are (i) E and (ii) F?

Ans: (i) Anther.

(ii) Pollen.

(d) What will part C become after fertilization?

Ans: Fruit.

(e) What will structure D become after fertilization?

Ans: Seeds.

Q. 2. What is the stem of a plant? State the various functions of the stem in a plant.

Ans: Stem: The part of a plant which rises vertically up from the ground is called its stem. 

The main functions of the stem of a plant are as follows:

(i) The stem holds the plants upright.

(ii) The stem of a plant carries water and minerals from the 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 plant.

(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.

Q. 3. What is a leaf ? Draw the labelled diagram of a leaf. What are the functions of the leaves of a plant?

Ans: Leaf: The leaf is a thin, broad, flat and green part of a plant which is attached to the stem (or branch).

The leaves of plants have three main functions:

(i) The leaves make food for the plant by photosynthesis.

(ii) The leaves get rid of excess water from the plant through transpiration. 

(iii) The leaves carry out the process of respiration in plants.

HIGHER ORDER THINKING SKILL QUESTIONS 

Q. 1. P and Q are the types of plants. Plant P has a thin, long and weak stem which cannot stand upright on its own. The plant P does not have tendrils and spreads on the ground. On the other hand, plant Q has a green soft and delicate stem but it can stand upright on its own.

(a) What type of plant is P? one plant like P.

Ans: Creeper plant: Money plant.

(b) What type of plant is Q? Name one plant like Q.

Ans: Herb: Sunflower plant.

Q. 2. A, B, C, D and E are the various parts of a plant. Part A contains the reproductive organs of the plant. Part A leads to the formation of part B which contains seeds of the plant. Part C absorbs water and dissolved minerals from the soil and part D makes the food for the plant by the process of photosynthesis. Part E supports the plant and also carries the food by D to all the parts of the plant. What are A, B, C, D and E?

Ans: A: Flower.

B: Fruit.

C: Root.

D: Leaf (or leaves). and

E: Stem.

Q. 3. Define supporting roots with examples.

Ans: In some plants, a number of rope- like roots arise from the horizontal branches of the tree. They grow downwards and penetrate the soil acting as pillars to support the main stem and heavy branches of the tree. These roots are called prop roots. These roots are found in banyan tree, sugarcane, screwpine and maize.

Q. 4. Mention some modified roots and stems which we eat.

Ans: Radish, carrot, potato, sweet potato, beet etc., plant roots store food, which we eat such root are called tuberous roots. In some plants like ginger, onion, potato etc. stems grow underground and store food materials.

Q. 5. Explain why petals of flowers are variously coloured.

Ans: The flowers are coloured to attract insect pollinators for cross-pollination.

SKILL BASED QUESTIONS

Q.1. Draw a diagram to show longitudinal and transverse cut of an ovary.

Ans: 

(a) Longitudinal cut. and 

(b) Transverse cut.

Q.2. Identify the following figure and write two Characteristics of it.

Ans: The figure is of a fibrous root.

Characteristics:

(i) All roots emerge from the base of stem.

(ii) These roots do not go deep in the soil.

FORMATIVE ASSESSMENT

Q. 1. Fill in the following blanks with a suitable word:

(i) Green plants use___________ energy to food. This property is called__________.

Ans: Sunlight, photosynthesis

(ii) Plants having leaves with reticulate venation have________ roots whereas those having leaves with parallel venation have __________roots. 

Ans: Tap, fibrous.

(iii) The flower is that part of a plant which contains the __________ organs.

Ans: Reproductive.

(iv) After fertilisation ovary is transformed into _________and ovules grow into____________.

Ans: Fruit, Seeds.

(v) The part of a plant which rises vertically up from the ground is called its ___________.

Ans: Stem.

(vi) __________anchor the plant to the soil.

Ans: Roots.

(vii) The money plant having a long and weak stem is called a _________. 

Ans: Creepers.

(viii) Rose plant is a __________whereas tomato plant is a herb.

Ans: Shrub.

(ix) The arrangement in which only the leaf is attached to each node is called ___________.

Ans: Alternate arrangement.

(x) The lower broader portion of the pistil is called ___________.

Ans: Ovary.

Q. 2. State whether the following statements are true or false: 

(i) Plants take carbon dioxide from air through tiny openings found in the roots.

Ans: False.

(ii) Plants spread out their branches and leaves in order to make it more beautiful

Ans: False.

(iii) Most of the fruits have seeds.

Ans: True.

(iv) The loss of water from the leaves of a plant is called evaporation.

Ans: False.

(v) Stem absorbs water and minerals from the soil. 

Ans: False.

(vi) All plants have colourful flowers.

Ans: False.

(vii) Pistil is the female part of a flower.

Ans: True.

(viii) In shrubs branches arise from the base of the stem.

Ans: True.

(ix) Grass has a tap root.

Ans: False.

(x) Sepal protects the flower at the bud stage. 

Ans: True.

Q. 3. Match the items in column A with those in column B:

Ans: 

Q. 4. Write one word for the following:

(i) A plant of small height with green soft stem.

Ans: Herb.

(ii) The part of the plant above the ground.

Ans: Shoot system.

(iii) The point where leaves and branches are joined to the stem.

Ans: Nodes.

(iv) The process in which plants take in oxygen and release carbon dioxide.

Ans: Respiration.

(b) A cluster of thin fibre-like roots at the base of the stem. 

Ans: Fibrous roots.

(vi) A flask-shaped structure in the center of the flower.

Ans: Pistil.

(vii) The flat green of the leaf.

Ans: Lamina.

(vin) A medium sized plant with hard and woody stem. 

Ans: Shrub.

(ix) Green leafy structure which forms the outermost whorl of a flower.

Ans: Sepals.

(x) Brightly coloured leaves which form the second whorl of a flower.

Ans: Petals.

MULTIPLE CHOICE QUESTIONS

(i) The plants having green and tender stems are called:

(a) Herbs. 

(b) Shrubs. 

(c) Trees. 

(d) All of the above.

Ans: (a) Herbs.

(ii) Grape is an example of:

(a) Trees. 

(b) Climbers.

(c) Creepers.

(d) Shrubs. 

Ans: (b) Climbers.

(iii) Which part of the plant is not always present?

(a) Leaf. 

(b) Root. 

(c) Fruit.

(d) Stem. 

Ans: (c) Fruit.

(iv) Which one of the following does not have branches?

(a) Neem tree. 

(b) Oak tree. 

(c) Banyan tree.

(d) Coconut tree.

Ans: (d) Coconut tree.

(v) Which part of plant helps to carry food to all parts of the plant?

(a) Root.

(b) Leaf. 

(c) Stem. 

(d) Flower.

Ans: (c) Stem.

(vi) Which one of following statements is wrong? 

(a) Leaves can only make food when there is light.

(b) Male flowers will develop into fruits. 

(c) Plant firmly to the ground.

(d) Plants need air, water and sunlight to grow.

Ans: (b) Male flowers will develop into fruits.

(vii) Which of the following has fibrous roots?

(a) Peas.

(b) Wheat. 

(c) Radish. 

(d) Neem. 

Ans: (b) Wheat.

(viii) Which modified part of a plant, sweet potato is?

(a) Stem. 

(b) Root. 

(c) Leaf. 

(d) Fruit.

Ans: (b) Root. 

(ix) Which of the following plants has parallel venation in its leaves?

(a) Mustard. 

(b) Banana. 

(c) Mango tree. 

(d) China rose.

Ans: (b) Banana.

(x) One the following plants has reticulate venation in its leaves. This plant is:

(a) Wheat. 

(b) Sugar cane.

(c) Bamboo. 

(d) Marigold.

Ans: (d) Marigold.

VALUE BASED QUESTIONS

Pollens are produced in the anther and are useful in fertilization towards formation of seed. In addition to this role in nature, pollen have been employed in trade and in solving crime related problems in the society. 

Questions

(i) What is the study of pollens called? What important pollen characteristics are generally considered for different uses? 

Ans: Study of pollens is covered under the science called as polynology. Pollens of different plant species vary in their size, shape, colour and surface designs. These differences in pollen characteristics are specific for the plant species and have been used indifferent ways.

(ii) Explain the use of pollens in solving crime related problems and in trade in the society.

Ans: Pollen have been used as evidence in solving a number of criminal cases. sticking to the body of a killed person or to the clothes, shoes and articles of the murderer have proved useful as evidence for confirming the site of crime or the time of crime. Also, analysis of pollens has been used in solving problems of other crimes in the society like smuggling of drugs, antiques, food etc. as to which country these might have been smuggled from.