Q 1 – Which of the following is the main circulatory fluid in our body ?
(a) Plasma
(b) Lymph
(c) Blood
(d) None of these
Ans. (c) Blood
Q 2 – Which one of the following contains haemoglobin?
(a) RBC
(b) WBC
(c) Platelets
(d) None of these
Ans. (a) RBC
Q 3 – What is the function of WBCs?
(a) Transport of oxygen
(b) Fight against germs
(c) Involved in blood clotting
(d) All of these
Ans. (b) Fight against germs
Q 4 – Blood platelets help in
(a) formation of urine
(b) excretion of urine
(c) sweating
(d) blood clotting
Ans. (d) blood clotting
Q 5 – The muscular tube through which stored urine is passed out of the body is called:
(a) kidney
(b) ureter
(c) urethra
(d) urinary bladder
Ans. (c) urethra
Q 6 – They are pipe-like, consisting of a group of specialised cells. They transport substances and form a two-way traffic in plants. Which of the following terms qualify for the features mentioned above?
(a) Xylem tissue
(b) Vascular tissue
(c) Root hairs
(d) Phloem tissue
Ans. (d) Phloem tissue
Q 7 – The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in:
(a) veins
(b) arteries
(c) heart
(d) capillaries
Ans. (d) capillaries
Q 8 – In which of the following parts of human body are sweat glands absent?
(a) Scalp
(b) Armpits
(c) Lips
(d) Palms
Ans. (c) Lips
Q 9 – In a tall tree, which force is responsible for pulling water and minerals from the soil?
(a) Gravitational force
(b) Transportation force
(c) Suction force
(d) Conduction force
Ans. (c) Suction force
Q 10 – Aquatic animals like fish excrete their wastes in gaseous form as
(a) Oxygen
(b) Hydrogen
(c) Ammonia
(d) Nitrogen
Ans. (c) Ammonia
Q 11 – The pumping organ of our circulatory system is
(a) heart
(b) artery
(c) vein
(d) all of these
Ans. (a) heart
Q 12 – What is the state of the blood?
(a) Solid
(b) Fluid
(c) Gas
(d) None of these
Ans. (b) Fluid
Q 13 – They are pipe-like, consisting of a group of specialised cells. They transport substances and form a two¬way traffic in plants. Which of the following terms qualify for the features mentioned above?
(a) Xylem tissue
(b) Vascular tissue
(c) Root hairs
(d) Phloem tissue
Ans. (b) Vascular tissue
Q 14 – The fluid part of the blood is known as
(a) membrane
(b) plasma
(c) RBC
(d) WBC
Ans. (b) plasma
Q 15 – The red pigment present in the RBC of the blood is
(a) haemoglobin
(b) WBC
(c) pulse
(d) none of these
Ans. (a) haemoglobin
Q 16 – Which blood cells are a significant part of the immune system of the body?
(a) RBC
(b) WBC
(c) Platelets
(d) All of these
Ans. (b) WBC
Q 17 – The cells in the blood which help in clotting are.
(a) Haemoglobins
(b) Platelets
(c) Red blood cells
(d) White blood cells
Ans. (b) Platelets
Q 18 – The part of human body which lacks sweat gland is
(a) scalp
(b) armpits
(c) lips
(d) palm
Ans. (c) lips
Q 19 – Which blood vessel carries oxygen-rich blood?
(a) Arteries
(b) Veins
(c) Both (a) and (b)
(d) None of these
Ans. (a) Arteries
Q 20 – The number of heart beats per minute is called
(a) pulse rate
(b) throbbing
(c) beating
(d) none of these
Ans. (a) pulse rate
Q 21 – What joins up to form veins which empty into the heart?
(a) Arteries
(b) Capillaries
(c) Red blood cells
(d) White blood cells
Ans. (b) Capillaries
Q 22 – The heart is located in the
(a) chest cavity
(b) stomach
(c) lungs
(d) all of these
Ans. (a) chest cavity
Q 23 – How many chambers does the human heart have?
(a) Three
(b) Four
(c) Five
(d) Two
Ans. (b) Four
Q 24 – Name an instrumental device used to amplify the sound of heart.
(a) Stethoscope
(b) UV machine
(c) Both (a) and (b)
(d) Ultrasound machine
Ans. (a) Stethoscope
Q 25 – The absorption of nutrients and exchange of respiratory gases between blood and tissues take place in
(a) veins
(b) arteries
(c) heart
(d) capillaries
Ans. (d) capillaries
Q 26 – All organisms need food, water and …………. for survival.
(a) carbon dioxide
(b) oxygen
(c) nitrogen
(d) argon
Ans. (b) oxygen
Q 27 – Blood carries from the cells of the body to the heart.
(a) argon
(b) neon
(c) carbon dioxide
(d) nitrogen
Ans. (c) carbon dioxide
Q 28 – The fluid part of the blood is called
(a) plasma
(b) RBC
(c) WBC
(d) blood platelets
Ans. (a) plasma
Q 29 – Red pigment in Red Blood Cells is
(a) haemoglobin
(b) plasma
(c) arteries
(d) veins
Ans. (a) haemoglobin
Q 30 – The cells in the blood which fight against the germs entering the body are
(a) RBCs
(b) WBCs
(c) platelets
(d) haemoglobin
Ans. (b) WBCs
Q 31 – The blood vessels which carry oxygen – rich blood from the heart to all parts of the body are called
(a) arteries
(b) veins
(c) RBCs
(d) WBCs
Ans. (a) arteries
Q 32 – The blood vessels which carry carbon dioxide-rich blood from all parts of the body back to the heart are called
(a) arteries
(b) veins
(c) RBCs
(d) platelets
Ans. (b) veins
Q 33 – The device used by the doctor to check up the heart beat is called
(a) anemometer
(b) thermometer
(c) barometer
(d) stethoscope
Ans. (d) stethoscope
Q 34 – The processes of removal of waste materials from the body is called
(a) digestion
(b) excretion
(c) respiration
(d) inhalation
Ans. (b) excretion
Q 35 – Which of the following is an excretory organ?
(a) Kidney
(b) Heart
(c) Lung
(d) Blood
Ans. (a) Kidney
Q 36 – Which of the following is an effect of sweat on the human body?
(a) It causes cooling.
(b) It causes heating.
(c) It causes freezing.
(d) It causes melting.
Ans. (a) It causes cooling.
Q 37 – Aquatic animals excrete cell waste mostly as
(a) ammonia
(b) oxygen
(c) carbon dioxide
(d) nitrogen
Ans. (a) ammonia