CG Board Class 6 Science Structure and Functions of Living Organisms-II MCQ
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What is the process of breaking down food into components that can be used by the body called?
a) Ingestion
b) Digestion
c) Absorption
d) Excretion
Answer: b) Digestion
Which part of the tongue can detect bitter tastes?
a) Tip
b) Sides
c) Back
d) All of the above
Answer: c) Back
What is the function of the salivary glands in the mouth?
a) To secrete saliva
b) To grind food
c) To absorb nutrients
d) To store food
Answer: a) To secrete saliva
How many teeth do adults have?
a) 16
b) 20
c) 28
d) 32
Answer: d) 32
Which type of teeth are used for cutting?
a) Incisors
b) Canines
c) Premolars
d) Molars
Answer: a) Incisors
Which blood vessels carry blood from the heart to various parts of the body?
a) Arteries
b) Veins
c) Capillaries
d) All of the above
Answer: a) Arteries
What is the function of the circulatory system?
a) To circulate oxygen
b) To circulate blood
c) To circulate useful substances to the body
d) All of the above
Answer: d) All of the above
Where is the heart located in the human body?
a) Towards the right of the chest
b) Towards the left of the chest
c) In the center of the chest
d) Below the ribs
Answer: b) Towards the left of the chest
What is the function of the diaphragm in the respiratory system?
a) To pump air into the lungs
b) To filter air
c) To remove carbon dioxide
d) To store air
Answer: a) To pump air into the lungs
What is the main function of the kidneys in the excretory system?
a) To remove waste products from the blood
b) To store urine
c) To produce sweat
d) To regulate blood pressure
Answer: a) To remove waste products from the blood
What are the main waste products removed from the body?
a) Solid waste, carbon dioxide, and urine
b) Solid waste, sweat, and carbon dioxide
c) Urine, sweat, and carbon dioxide
d) Solid waste, urine, and carbon dioxide
Answer: d) Solid waste, urine, and carbon dioxide
What are the main organs of the excretory system?
a) Kidneys, ureters, bladder, and urethra
b) Lungs, skin, and liver
c) Stomach, intestines, and rectum
d) Heart, arteries, and veins
Answer: a) Kidneys, ureters, bladder, and urethra
What is the function of the nervous system?
a) To coordinate the functioning of different body systems
b) To provide support and structure to the body
c) To remove waste products from the body
d) To produce new cells and tissues
Answer: a) To coordinate the functioning of different body systems
What are the main parts of the nervous system?
a) Brain, spinal cord, and nerves
b) Heart, lungs, and kidneys
c) Muscles, bones, and joints
d) Stomach, liver, and pancreas
Answer: a) Brain, spinal cord, and nerves
Which type of actions are controlled by the spinal cord?
a) Voluntary actions
b) Involuntary actions
c) Both voluntary and involuntary actions
d) None of the above
Answer: b) Involuntary actions
Which of the following are sense organs?
a) Eyes, nose, ears, tongue, and skin
b) Heart, lungs, and kidneys
c) Muscles, bones, and joints
d) Stomach, liver, and pancreas
Answer: a) Eyes, nose, ears, tongue, and skin
What is the main reproductive organ in males?
a) Ovaries
b) Uterus
c) Testes
d) Vagina
Answer: c) Testes
What is the main reproductive organ in females?
a) Ovaries
b) Uterus
c) Testes
d) Vagina
Answer: a) Ovaries
What is the function of the ureters in the excretory system?
a) To store urine
b) To remove waste from the blood
c) To carry urine from the kidneys to the bladder
d) To remove solid waste from the body
Answer: c) To carry urine from the kidneys to the bladder
Which of the following is a type of joint found in the human body?
a) Ball and socket joint
b) Hinge joint
c) Both a and b
d) None of the above
Answer: c) Both a and b
What is the function of the skeleton in the human body?
a) To provide support and structure
b) To allow movement
c) To protect internal organs
d) All of the above
Answer: d) All of the above
What is the main function of the heart in the circulatory system?
a) To pump blood to the lungs
b) To pump blood to the body
c) To filter blood
d) Both a and b
Answer: d) Both a and b
Which part of the digestive system is responsible for the breakdown of food?
a) Mouth
b) Stomach
c) Small intestine
d) All of the above
Answer: d) All of the above
What is the function of the liver in the digestive system?
a) To secrete bile
b) To store glucose
c) To break down toxins
d) All of the above
Answer: d) All of the above
Which type of teeth are used for tearing food?
a) Incisors
b) Canines
c) Premolars
d) Molars
Answer: b) Canines
What is the function of the pancreas in the digestive system?
a) To secrete insulin
b) To secrete digestive enzymes
c) Both a and b
d) None of the above
Answer: c) Both a and b
Which blood vessels carry blood from the body back to the heart?
a) Arteries
b) Veins
c) Capillaries
d) All of the above
Answer: b) Veins
What is the function of the diaphragm in the respiratory system?
a) To filter air
b) To remove carbon dioxide
c) To pump air into the lungs
d) To store air
Answer: c) To pump air into the lungs
What is the function of the urinary bladder in the excretory system?
a) To produce urine
b) To filter waste from the blood
c) To store urine
d) To remove urine from the body
Answer: c) To store urine
Which part of the nervous system controls involuntary actions?
a) Brain
b) Spinal cord
c) Nerves
d) Sense organs
Answer: b) Spinal cord
What is the function of the testes in the male reproductive system?
a) To produce sperm
b) To produce testosterone
c) Both a and b
d) None of the above
Answer: c) Both a and b
What is the function of the ovaries in the female reproductive system?
a) To produce eggs
b) To produce estrogen
c) Both a and b
d) None of the above
Answer: c) Both a and b
Which of the following is a type of joint found in the shoulder and hip?
a) Ball and socket joint
b) Hinge joint
c) Both a and b
d) None of the above
Answer: a) Ball and socket joint
What is the function of the ureter in the excretory system?
a) To store urine
b) To remove waste from the blood
c) To carry urine from the kidneys to the bladder
d) To remove solid waste from the body
Answer: c) To carry urine from the kidneys to the bladder
Which of the following is an example of a voluntary action controlled by the brain?
a) Raising your hand
b) Blinking your eyes
c) Breathing
d) Both a and b
Answer: d) Both a and b
What is the function of the nose in the respiratory system?
a) To filter air
b) To warm air
c) To humidify air
d) All of the above
Answer: d) All of the above
Which of the following is a function of the circulatory system?
a) To carry oxygen to the cells
b) To carry carbon dioxide to the lungs
c) To transport nutrients and waste products
d) All of the above
Answer: d) All of the above
What is the main function of the nervous system?
a) To provide structure and support to the body
b) To coordinate the functioning of different body systems
c) To remove waste products from the body
d) To produce new cells and tissues
Answer: b) To coordinate the functioning of different body systems
