Students can practice the best Class 7 Science MCQ and Life Processes in Animals Class 7 Science Curiosity Chapter 9 MCQ Online Test with Answers for exam preparation.
Class 7 Science Chapter 9 Life Processes in Animals MCQ
Life Processes in Animals MCQ Class 7
MCQ On Life Processes in Animals Class 7
Question 1.
Human alimentary canal consists of:
(a) mouth
(b) stomach
(c) intestine
(d) all of these
Answer:
(d) all of these
Question 2.
Inner wall of our stomach secretes:
(a) Digestive juices
(b) Mucus
(c) Hydrochloric acid
(d) All of these
Answer:
(d) All of these
Question 3.
Which of these helps in digestion ?
(a) Anus
(b) Stomach
(c) Liver
(d) Intestine
Answer:
(b) Stomach
Question 4.
The fats get digested in:
(a) Stomach
(b) Small intestine
(c) Mouth
(d) Large intestine
Answer:
(b) Small intestine
Question 5.
Oesophagus is also called:
(a) food pipe
(b) wind pipe
(c) none of these
(d) all of these
Answer:
(a) food pipe
Question 6.
The cow possesses:
(a) Single chambered stomach
(b) Double chambered stomach
(c) Three chambered stomach
(d) Four chambered stomach
Answer:
(d) Four chambered stomach
Question 7.
The intake of O2 and release of CO2 is called:
(a) Breathing
(b) Digestion
(c) Egestion
(d) Absorption
Answer:
(a) Breathing
Question 8.
Earthworm respire by:
(a) Moist skin
(b) Lungs
(c) Gills
(d) None of these
Answer:
(a) Moist skin
Question 9.
Fish respire by:
(a) gills
(b) lungs
(c) none of these
(d) all of these
Answer:
(a) gills
Question 10.
What is the process of breaking down complex food into simpler forms called?
(a) Ingestion
(b) Digestion
(c) Egestion
(d) Absorption
Answer:
(b) Digestion
Question 11.
Which part of the human digestive system is primarily responsible for nutrient absorption?
(a) Stomach
(b) Mouth
(c) Small intestine
(d) Large intestine
Answer:
(c) Small intestine
Question 12.
What is the function of bile secreted by the liver?
(a) Break down proteins
(b) Absorb nutrients
(c) Neutralise stomach acid and break down fats
(d) Kill bacteria
Answer:
(c) Neutralise stomach acid and break down fats
Question 13.
What is rumination in animals?
(a) Absorption of nutrients
(b) Swallowing food whole
(c) Chewing of cud
(d) Grinding food in stomach
Answer:
(c) Chewing of cud
Question 14.
Which part of the alimentary canal stores waste before egestion?
(a) Small intestine
(b) Liver
(c) Rectum
(d) Stomach
Answer:
(c) Rectum
Question 15.
In birds, food is ground using:
(a) Teeth
(b) Stomach
(c) Gizzard
(d) Liver
Answer:
(c) Gizzard
Question 16.
Which gas is released during respiration in humans?
(a) Oxygen
(b) Nitrogen
(c) Hydrogen
(d) Carbon dioxide
Answer:
(d) Carbon dioxide
Question 17.
What is the dome-shaped muscle that helps in breathing called?
(a) Ribcage
(b) Alveoli
(c) Diaphragm
(d) Trachea
Answer:
(c) Diaphragm
Question 18.
Which structure in lungs is responsible for exchange of gases?
(a) Bronchi
(b) Alveoli
(c) Trachea
(d) Diaphragm
Answer:
(b) Alveoli
Question 19.
Which gas turns lime water milky when exhaled air is blown into it?
(a) Oxygen
(b) Nitrogen
(c) Hydrogen
(d) Carbon dioxide
Answer:
(d) Carbon dioxide
Question 20.
What is the function of mucus in the stomach?
(a) Digest proteins
(b) Neutralise acid
(c) Protect stomach lining
(d) Absorb nutrients
Answer:
(c) Protect stomach lining
Life Processes in Animals Class 7 Assertion Reason Questions
Given below are two statements, one lab as Assertion (A) and the other labelled as son (R).
(a) Both (A) and (R) are true and (R) is c explanation of (A).
(b) Both (A) and (R) are true and (R) is not c explanation of (A).
(c) (A) is true but (R) is false.
(d) (A) is false but (R) is true.
1. Assertion (A): Saliva helps in the digest starchy foods like chapati and rice.
Reason (R): Saliva contains enzymes break down starch into sugars during che
Answer:
(a) Both (A) and (R) are true and (R) is c explanation of (A).
2. Assertion (A): Ruminants bring par digested food back into their mouth to ch again.
Reason (R): This process is called respir and helps in absorbing oxygen.
Answer:
(c) (A) is true but (R) is false.
3. Assertion (A): Bile from the liver helps i digestion of fats.
Reason (R): Gizzards contain grit and stones that help grind food in the absence of teeth.
Answer:
(a) Both (A) and (R) are true and (R) is c explanation of (A).
4. Assertion (A): Birds use gizzards instead of teeth to help digest their food.
Reason (R): Gizzards contain grit and stones that help grind food in the absence of teeth.
Answer:
(a) Both (A) and (R) are true and (R) is c explanation of (A).
5. Assertion (A): Respiration in animals involves the breakdown of glucose in the presence of oxygen to release energy.
Reason (R): This process produces carbon dioxide, water, and energy as end products.
Answer:
(a) Both (A) and (R) are true and (R) is c explanation of (A).
Life Processes in Animals Class 7 Fill in the Blanks
1. Fishes absorb oxygen from water through _______.
Answer:
Gills
2. Alimentary canal of man begins with the _______.
Answer:
mouth
3. The chapatti contains _______.
Answer:
starch
4. The mucus protect stomach living from _______.
Answer:
acid
5. Secretion of liver is _______ in nature.
Answer:
basic
6. Passing out of stool by the anus is called _______.
Answer:
egestion
7. _______ is a grass eating animal.
Answer:
Cow
8. Birds have _______.
Answer:
gizzard
9. The other name of trachea is _______
Answer:
win
10. Breathing is a _______ process.
Answer:
physical
Life Processes in Animals Class 7 True or False
1. Elephants, lions respire by lungs.
Answer: True
2. Frog tadpole respire by gills.
Answer: True
3. Circulatory system includes mouth stomach etc.
Answer: False
4. Respiration is a chemical process.
Answer: False
5. Pancreas secretes pancreatic juice.
Answer: True
6. Acid is stomach kills harmful bacteria.
Answer: True
7. Cows possess four chambered stomach
Answer: True
8. Frog lives in water and on land.
Answer: True