STD-4, CHAPTER 3 - FLOWERS AND FRUITS, EXERCISE QUESTIONS AND ANSWERS

A.     FILL IN THE BLANKS.

1.      Flower is the colourful part of a ______.

Ans: Plant

2.      A flower develops from a ________.

Ans: Bud (floral bud)

3.      Oil, extracted from cloves, is used as a __________.

Ans: Medicine

4.      We must protect flowers from being ________ unnecessarily.

Ans: Plucked

5.      Dry fruits are generally eaten in ________ season.

Ans: Winter Season

B.      WRITE TRUE OR FALSE FOR THE FOLLOWING STATEMENTS:

1.      A bud is covered with green leaves.    True

2.      All flowers look alike.                            False

3.      Lavender is cooked and eaten as a vegetable.                                                   False

4.      Fruits make flowers.                              False

5.      Jackfruit and tomato are fruits that are often used as vegetables.                   True

 

C.      TICK THE CORRECT OPTION.

1.      It blooms in summer -

(a)   Motia                   (b) Dahlia                     (c) Chrysanthmum            (d) Rose

      Ans: Motia

2.      It is useful for curing wounds and injuries –

(a)   Zenia        (b) Marigold          (c) Arnica        (d) Banana

      Ans: Arnica

3.      It has many seeds –

(a)   Mango        (b) Peach         (c) Plum             (d) Watermelon

      Ans: Watermelon

4.      It is generally not used for preparing jams –

(a)   Apple          (b) Bitter gourd                     (c) Strawberry        (d) Orange

      Ans: Bitter gourd 

D.     ANSWER THE FOLLOWING QUESTIONS IN BRIEF.

1.      State any two uses of flowers.

Ans: : i) Sweet smelling flowers like rose are used for making perfumes.

ii) Flowers are often used for decoration purposes.

2.      How do green leaves help a bud?

Ans: The green leaves protect the bud and help it to bloom into a flower.

3.      Name two flowers which are eaten as vegetables.

Ans: Flowers of sahjan, kachnar, banana plants, are used as vegetables.

4.      Name any three dry fruits. Write two ways in which they are used in our daily life.

Ans: : i) Cashewnuts, almonds and walnuts are some dry fruits.

ii) They are often eaten in their dried form.

iii) They are also used in preparing various dishes.

E.      ANSWER THE FOLLOWING QUESTIONS.

1.      Write five lines about flowers.

Ans: i) Flowers generally have pleasant fragrance and attractive colours.

ii) A flower develops from a bud.

iii) Flowers have different shapes and sizes.

iv) Some flowers bloom singly whereas others bloom in bunches.

v) Flowers make fruits.

2.      What do you understand by ‘seasonal flowers’? Give two examples of seasonal flowers.

Ans: i) Those flowers that grow only in a specific season, are called seasonal flowers.

ii) Chameli (grows in summer) and Rose (grows in winter) are seasonal flowers.

3.      Write any two uses of fruits.

Ans: i) Some fruits like brinjal and tomato are used as vegetables.

ii) Some fruits, like mango and lemon are used for preparing pickles, chutneys.

4.      List the food preparations that can be made by using mango fruit.

Ans: i) Mango fruit can be eaten raw.

ii) Some dishes can be prepared using raw mango.

iii) Mango fruit can also be used to make, a) pickles

             b) chutneys

STD-4, DAV BOOKS, CHAPTER 2 - PLANTS, EXERCISE QUESTION AND ANSWERS

A.     FILL IN THE BLANKS.

1.      _________ is the underground part of a plant.

Ans: Root

2.      Roots absorb ______ and _______ for the plant.

Ans: Water and Minerals

3.      Neem and peepal have ______ roots.

Ans: Tap roots

4.      _______ and ______ are edible roots.

Ans: Radish, Carrot, Beetroot (any two)

5.      Mangrove plants have ______ roots.

Ans: Aerial roots

B.      MATCH THE FOLLOWING:

1.      Carrot and beetroot store food in them.                                                                       True

2.      Beans and rose have fibrous roots.                                                                                False

3.      All roots are edible.                                                                                                         False

4.      Roots do not get sufficient oxygen in marshy areas.                                                    True

 

C.      TICK THE CORRECT OPTION.

 

1.      The root of this plant stores food-

(a)   Mango        (b) Apple          (c)  Banana       (d) Carrot

      Ans: Carrot

2.      This plant has a tap root –

(a)   Banana       (b) Grass           (c) Wheat           (d) Rose

      Ans: Rose

3.      These plants have breathing roots –

(a)   Mangrove       (b)  Apple       (c) Neem       (d) Peepal

       Ans: Mangrove

D.     ANSWER THE FOLLOWING QUESTIONS IN BRIEF.

1.      Name the two different types of roots.

Ans: The two different types of roots are, Tap root and Fibrous roots.

2.      Give two examples of plants having fibrous roots.

Ans: Two plants having fibrous roots are, grass and banana.

3.      Why do aerial roots need to come out of the soil?

Ans: Aerial roots need to come out of the soil to get fresh air from the atmosphere.

A.      E ANSWER THE FOLLOWING QUESTIONS.

1.      Draw the shape of the tap root and the fibrous root. 

 

1.      2.  In what way(s) is the tap root different from the fibrous root?

Ans: i) In tap root system, a single root grows downwards into the soil and smaller thin roots arise from it. There is one main root. Plants like, beans, rose, peepal etc. have tap roots.

ii) In Fibrous roots, many roots arise from the base of the stem. There is no main root. Grasses and cereals have fibrous roots.

2.      3.  State the two main functions of roots.

Ans: The two main functions of roots are,

i)   Absorption:- Roots absorb water and minerals from the soil.

ii) Fixation:- Roots fixes the plant in the soil and holds it upright in the soil.

3.      4. In what ways are the roots of banyan tree and maize ‘special’?

Ans: The roots of banyan tree and maize are special, as they,

i)   Provide extra support to the plant.

                ii) Help the plant in breathing.