CBSE Class 7 Science Nutrition in Animals Assignment

Question. The diagram below represents a portion of the human body. The principal function of structure X is to 

a) Produce salivary enzymes.
b) Secrete bile.
c) Absorb water from digested food.
d) Break down food particles.

Answer : C

Question. Which option correctly shows the function of the different types of teeth in Man?

a) A
b) B
c) C
d) D

Answer : D

Question. Which of these is the smallest structure capable of basic life processes like nutrition and reproduction?
a) DNA
b) Tissues
c) The molecule
d) The cell

Answer : D

Question. Which of the FOOD CHAINS could be made from the given food web?

a) Mice -->lizard -->bird --> moth
b) Corn -->  bird --> mice --> hawk
c) Corn --> cricket -->  lizard --> hawk
d) Moth --> cricket --> corn &Birds;> mice

Answer : C

Question. Some animals eat only plants and are called primary consumers. Some animals eat other animals and are called secondary consumers. Which of these are BOTH primary and secondary consumers?

a) hawks
b) Corn
c) Mice
d) Lizard

Answer : C

Question. Name the digestive substance found in mouth.
a) Teeth
b) Tongue
c) Saliva
d) Lips

Answer : C

Question. The amount of energy content in food is usually measured in:
a) percentage
b) calories
c) kilograms
d) grams

Answer : B

Question. Shown here is the picture of a butterfly. The part of the butterfly that helps it acquire its food is the___________.

a) Antennae
b) Proboscis
c) Wings
d) Thorax

Answer : B

Question. When people are unwell and not able to eat normal food, doctors sometimes feed them from a bottle connected through a tube. What kind of food is given through the tube?

a) Sugar dissolved in water.
b) Boiled water.
c) Milk mixed with water.
d) Vegetable soup.

Answer : A

Question. Which of these meals would give you most of the nutrients that you need
a)  Meat, milk and a piece of chocolate
b) Bread, vegetables and fish
c) Vegetables, fruits and water
d) Meat, fish and bread

Answer : B

Question. Inadequate intake of iodine could lead to -
a) Goiter 
b) Beriberi
c) Anaemia 
d) Scurvy 

Answer : A

Question. Which of these foods is rich in protein but has little fat?
a) Redmeat
b) Beans
c) Dairy products
d) Fish

Answer : B

Question. Energy giving foods like pasta and bread are rich in.
a) Protein
b) Carbohydrates
c) Fat
d) Vitamin

Answer : B

Question. Smallpox, a deadly disease which is believed to have been eradicated, was initially thought to have been spread through the air. Today, we know that it is actually spread through__________________.
a) water
b) mosquitoes
c) contact with an infected person
d) food

Answer : C

Question. Which of the following shows the structures in the correct order from the least complex to the most complex?
a) System, organ, tissue, cell
b) Organ, tissue, cell, system
c) Cell, system, organ, tissue
d) Cell, tissue, organ, system

Answer : D

Q.1 Fill in the blanks.

i) The conversion of complex food is called ________________

ii) A ____________ is an association of symbiotic relationship between an alga and a fungus.

iii) A plant that has both autotrophic as well as heterotrophic mode of nutrition is ____________.

iv) The mode of taking in food by organism and its utilization by the body for its various activities is called _____________.

v) The relationship in which two different organisms live together in such a way that benefit each other in some way is called the _______________.

Q2. Correct the following sentences by correcting the highlighted words :

i) Roots are the main site of photosynthesis in plants.

Ans. ______________________________________________________________

ii) Boiled and cooled water with a pinch of salf and some sugar which is given to the patient suffering from diarrhea is called iodine solution.

Ans. ______________________________________________________________

iii) False feet in amoeba are called vacuoles.

Ans. ______________________________________________________________

iv) Cellulose is digested by ruminants in rumen.

Ans. ______________________________________________________________

v) Green pigment present in leaves is rhizobium.

Ans. ______________________________________________________________

Please refer to attached file for CBSE Class 7 Science Nutrition in Animals Assignment