Chapter 1 Components of Food
Multiple Choice Questions:
1. Given below are names of some animals.
(i) Goat
(ii) Human beings
(iii) Cockroach
(iv) Eagle
which of the above animals form a pair of omnivores?
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (ii) and (iv)
Solution:
(b) Human beings and Cockroach.
Humans and cockroaches eat both animals and plants so, they are omnivores. Goats eat only plants and plant products so they are herbivores. Eagles eat flesh of other animals so, they are carnivores.
2. Honeybee makes honey from
(a) pollen
(b) petals
(c) nectar
(d) bud.
Solution:
(c): nectar.
Honeybees collect nectar from flowers and take it to their beehive. Honeybees convert it into honey and store it as food. Hence we get honey from beehives.
3. Below are the names of some animals.
(i) Cow
(ii) Sheep
(iii) Horse
(iv) Ox
Which of the above are sources of milk for human beings?
(a) (i) and (iii)
(b) (i) and (ii)
(c) (ii) and (iii)
(d) (iii) and (iv)
Solution:
(b): Cow and Sheep.
Cow and sheep are dairy animals i.e., they are kept for obtaining milk. They are also called milch animals.
Ox and horse are draught animals i.e., they are used for transportation and in agriculture.
4. Given below is a list of edible plants.
(i) Banana
(ii) Pumpkin
(iii) Lady’s finger
(iv) Brinjal
Which pair of plants have two or more edible parts?
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)
Solution:
(a): Banana and Pumpkin.
In banana: stem, fruit and flower are edible and in pumpkin: flower and fruit are edible. In the lady’s finger and brinjal: only the fruit is edible.
5. The part of a banana plant not used as food is
(a) flower
(b) fruit
(c) stem
(d) root.
Solution:
(d): root.
In banana: stem, fruit and flower are edible which are very useful.
6. Read each set of terms and identify the odd set.
(a) Cow, milk, butter
(b) Hen, meat, egg
(c) Goat, milk, meat
(d) Plant, vegetable, buttermilk
Solution:
(d): Plant, vegetable, buttermilk
Vegetables are part of the plants whereas buttermilk is an animal product.
Very Short Answer Questions:
7. Read the clues and fill up the blanks given below each of them.
(a) Honeybees suck from flower.
N_ _T_R
(b) Animals which eat other animals.
_A _N_V_R_S
(c) Animals which eat only plants and plant products.
HE_B_ _ _ _ E_
(d) Animals which eat both plants and animals.
_MN I_O_ _ _
Solution:
(a) NECTAR
(b) CARNIVORES
(c) HERBIVORES
(d) OMNIVORES
8. Why do boiled seeds fail to sprout?
Solution:
Boiled seeds fail to sprout because boiling kills the seed.
9. Where do bees store honey?
Solution:
Bees store honey in their beehives.
10. Name two ingredients in our food that are not obtained from plants or animals. Mention one source for each ingredient.
Solution:
Two ingredients in our food that are not obtained from plants or animals are salt and water.
The main source of salt is obtained from seawater and from the rock.
Water is obtained from the river, well, tube well, rain etc.
11. Given below are jumbled words which are names of parts of a plant. Rearrange them to get the correct words.
(a) LILCHI
(b) ITRUF
(c) SEANBOYA
(d) GURSA
(e) ROUNDGUNT
Solution:
The rearranged words are:
(a) CHILLI
(b) FRUIT
(c) SOYABEAN
(d) SUGAR
(e) GROUNDNUT
Short Answer Questions:
12. Identify the animals in the grid given below as Fig. 1.1 and categorize them into herbivore, carnivore and omnivore.
T |
A |
C |
O |
W |
O |
L |
F |
T |
A |
R |
W |
X |
G |
O |
R |
N |
N |
O |
L |
I |
O |
N |
O |
E |
T |
W |
Q |
L |
A |
N |
G |
H |
U |
M |
A |
N |
T |
W |
O |
Fig 1.1
Solution:
Herbivore – Cow, Goat, Hen
Carnivore – Wolf, Lion, Frog
Omnivore – Cat, Rat, Crow, Human, Ant, Owl
13. Why should we avoid wastage of food?
Solution:
We should avoid wastage of food because:
(i) Sufficient food is not available to everyone.
(ii) Food is very costly and poor people cannot afford to buy even the minimum required amount of food.
14. Why do organisms need food? Write two reasons.
Solution:
Organisms need food because
(i) Without energy, we cannot do any activity hence food gives energy to do the work.
(ii) Food helps in building the body parts stronger.
(iii) Food contains minerals, which helps in protecting the body against diseases.
15. Match the organisms given in column I with their part product in column II that is used by human beings as food.
Column I |
Column II |
(a) Mustard plant |
(i) Meat |
(b) Goat |
(ii) Fruits and vegetables |
(c) Hen |
(iii) Seed |
(d) Smoke |
(iv) Direction of air flow |
(e) Wind |
(v) Prevent dust particles |
