Which is the life process among the following?
  • Respiration
  • Reading
  • Cooking
2.What is the feeding habit of cow?
  • swallowing
  • chewing
  • filter feeding
3.In which organism is swallowing feeding habit observed?
  • lion
  • rabbit
  • snake
4.Digestion actually starts in?
  • intestine
  • stomach
  • mouth
5.The process of breaking down of food is termed as?
  • nutrition
  • digestion
  • excretion
During inhalation, the diaphragm:
  • Closes the windpipe
  • Reduces space in the lungs
  • Contracts and moves down
  • Relaxes and moves up
Which of the following is NOT part of the digestive system?
  • Oesophagus
  • Pancreas
  • Kidney
  • Stomach
The small balloon-like sacs in the lungs where gas exchange occurs are called:
  • Bronchi
  • Nasal passage
  • Alveoli
  • Windpipe
What is the main function of the lungs in the respiratory system?
  • Pump blood
  • Absorb nutrients
  • Exchange gases
  • Digest food
The swallowed food moves downwards in the alimentary canal because of:
  • The contraction of muscles in the wall of the food pipe
  • Gravitational pull
  • The flow of water taken with the food
  • Force provided by the muscular tongue
The finger-like outgrowths of the human intestine help to:
  • Digest the fatty food substances
  • Make the food soluble
  • Absorb the undigested food
  • Absorb the digested food
What is the role of saliva in digestion?
  • It neutralizes stomach acid
  • It moistens food and begins starch digestion
  • It breaks down fats
  • It digests proteins
During the process of exhalation, the ribs move:
  • Down and outwards
  • Down and inwards
  • Up and inwards
  • Up and outward
The main purpose of respiration is to:
  • Produce oxygen
  • Eliminate waste
  • Produce energy
  • Digest food
Assertion: Alveoli are found in the stomach. Reason: Alveoli help in gas exchange.
  • A is false, but R is true
  • Both A and R are true, but R is not the correct explanation of A
  • A is true, but R is false
  • Both A and R are true and R is the correct explanation of A
Assertion: The small intestine is the main site for absorption of nutrients. Reason: The inner walls of the small intestine have finger-like projections.
  • Both A and R are true and R is the correct explanation of A
  • Both A and R are true, but R is not the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Assertion: The nose filters and moistens the air we breathe. Reason: Tiny hairs and mucus help trap dust particles.
  • A is false, but R is true
  • Both A and R are true, but R is not the correct explanation of A
  • Both A and R are true and R is the correct explanation of A
  • A is true, but R is false
Assertion: Alveoli increase the surface area of the lungs. Reason: Greater surface area improves gas exchange.
  • A is true, but R is false
  • A is false, but R is true
  • Both A and R are true and R is the correct explanation of A
  • Both A and R are true, but R is not the correct explanation of A
Assertion: The small intestine is longer than the large intestine. Reason: The small intestine is 1.5 m long.
  • Both A and R are true and R is the correct explanation of A
  • Both A and R are true, but R is not the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Assertion: Churning of food takes place in the stomach. Reason: The walls of the stomach contract and relax to churn the food.
  • A is false, but R is true
  • Both A and R are true and R is the correct explanation of A
  • Both A and R are true, but R is not the correct explanation of A
  • A is true, but R is false
Assertion: The oesophagus is involved in gas exchange. Reason: The oesophagus connects the mouth to the stomach.
  • Both A and R are true and R is the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
  • Both A and R are true, but R is not the correct explanation of A
Assertion: The pancreas is part of the respiratory system. Reason: The pancreas produces pancreatic juice that is basic in nature.
  • Both A and R are true, but R is not the correct explanation of A
  • A is false, but R is true
  • Both A and R are true and R is the correct explanation of A
  • A is true, but R is false
Assertion: Inhalation is caused by the expansion of the chest cavity. Reason: The diaphragm contracts during inhalation.
  • Both A and R are true and R is the correct explanation of A
  • A is false, but R is true
  • A is true, but R is false
  • Both A and R are true, but R is not the correct explanation of A
Assertion: Oxygen is the final product of respiration. Reason: Respiration produces water, carbon dioxide, and energy.
  • A is true, but R is false
  • Both A and R are true and R is the correct explanation of A
  • Both A and R are true, but R is not the correct explanation of A
  • A is false, but R is true
The long tube that carries food from the mouth to the stomach is called the _____.
  • Pharynx
  • Trachea
  • Intestine
  • Oesophagus
The _____ system is responsible for taking in oxygen and removing carbon dioxide from the body.
  • Digestive
  • Nervous
  • Respiratory
  • Circulatory
The body part where undigested food is stored temporarily before being removed is the _____.
  • Stomach
  • Rectum
  • Pancreas
  • Intestine
The contraction and relaxation of the _____ helps in breathing.
  • Heart
  • Ribs
  • Diaphragm
  • Lungs
The final stage of digestion, where undigested material is removed, is called _____.
  • Digestion
  • Egestion
  • Ingestion
  • Absorption
Digestion of starch starts in the _____.
  • Small intestine
  • Stomach
  • Mouth
  • Large intestine
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