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Human Biology. MCQ Unit 2. 1.Which of these events produces the normal sounds of heart beat heard through a stethoscope?. Contraction of the atria Contraction of the ventricles Closing of the heart valves Opening of the heart valves.

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Human biology
Human Biology

MCQ

Unit 2


1 which of these events produces the normal sounds of heart beat heard through a stethoscope
1.Which of these events produces the normal sounds of heart beat heard through a stethoscope?

  • Contraction of the atria

  • Contraction of the ventricles

  • Closing of the heart valves

  • Opening of the heart valves


2 which of the following is not a function of the lymphatic system
2. Which of the following is beat heard through a stethoscope?not a function of the lymphatic system?

  • It returns excess tissue fluid to the blood

  • It transports fat from the small intestine

  • It destroys bacteria

  • It causes the clotting of blood at wounds


3 where is bile active
3. Where is bile active? beat heard through a stethoscope?

  • Liver

  • Stomach

  • Gall bladder

  • Small intestine


4 which of the following pairs of compounds is produced by the pancreas
4. Which of the following pairs of compounds is produced by the pancreas?

  • Glycogen and insulin

  • Insulin and ADH

  • Insulin and glucagon

  • Glycogen and glucagon


5.The concentration of urea in plasma is 0.2 g/100cm the pancreas?3, and in urine it is 1.26 g/100cm3.By how many times has the urea been concentrated by the activity of the kidney?

  • 0.252 times

  • 1.28 times

  • 6.3 times

  • 63 times


6 which of the following hormones is released by the pituitary gland
6. Which of the following hormones is released by the pituitary gland?

  • Insulin

  • Adrenaline

  • Oestrogen

  • Antidiuretic hormone


7 infants are more likely to suffer from hypothermia because they have
7. Infants are more likely to suffer from hypothermia because they have

  • A low surface area to volume ratio

  • A high surface area to volume ratio

  • A low metabolic rate

  • A high metabolic rate


8. After a race an athlete breathes at a rate of 24 breaths per minute, with a tidal volume of 1litre, and 5% CO2 in his exhaled air.

What would be the volume of CO2 breathed out during the first two minutes after the race?

  • 0.18 litres

  • 0.36 litres

  • 1.2 litres

  • 2.4 litres


9 which hormone stimulates the production of testosterone by the testes
9. per minute, with a tidal volume of 1litre, and 5% COWhich hormone stimulates the production of testosterone by the testes?

  • Follicle stimulating hormone (FSH)

  • Luteinising hormone (LH)

  • Oestrogen

  • Progesterone


10 which hormone is produced by the corpus luteum
10. Which hormone is produced by the corpus luteum? per minute, with a tidal volume of 1litre, and 5% CO

  • Follicle stimulating hormone (FSH)

  • Luteinising hormone (LH)

  • Oestrogen

  • Progesterone

    - trick question….


11.Which of the following will per minute, with a tidal volume of 1litre, and 5% COnot normally pass through the placenta between the mother and the fetus?

  • Oxygen

  • Minerals

  • Glucose

  • Red blood cells


12 fertility drugs can be used to
12. Fertility drugs can be used to: per minute, with a tidal volume of 1litre, and 5% CO

  • Correct hormone imbalances

  • Reduce the pH of the oviduct

  • Stimulate mitosis in an egg

  • Protect sperm cells in the oviduct


13. If ventricular systole last for 0.4 sec, and atrial systole lasts for 0.2 sec, what is the heart rate of the individual?

  • 60 bpm

  • 72 bpm

  • 100 bpm

  • 120 bpm


14 in which of these locations are red blood cells destroyed
14. In which of these locations are red blood cells destroyed?

  • Liver and lymph nodes

  • Liver and spleen

  • Bone marrow and duodenum

  • Spleen and duodenum


15 which of the following body fluids does not contain digestive enzymes
15. Which of the following body fluids does destroyed? not contain digestive enzymes?

  • Saliva

  • Gastric juice

  • Pancreatic juice

  • Bile


16 which of the following would an increase in adh bring about
16. Which of the following would an destroyed? increase in ADH bring about?

  • An increase in the permeability of the kidney tubules to water

  • An decrease in the permeability of the kidney tubules to water

  • An increase in the permeability of the glomerulus to water

  • An decrease in the permeability of the glomerulus to water


17 the function of the interstitial cells in the human testes is to
17. The function of the interstitial cells in the human testes is to:

  • Act as a store for sperm cells

  • Produce sperm

  • Cause sperm cells to mature

  • Produce testosterone


18 which of the following are exchanged between maternal and fetal blood by diffusion
18. Which of the following are exchanged between maternal and fetal blood by diffusion?

  • Oxygen and proteins

  • Carbon dioxide and antibodies

  • Oxygen and glucose

  • Carbon dioxide and oxygen


19. A person produces 1.5 litres of urine in 24 hours. The urine contains 36g of urea. What is the concentration of urea in the urine?

  • 1.0 g / 100 cm3

  • 2.4 g / litre

  • 2.4 g / 100 cm3

  • 3.6 g / 100 cm3


20 the function of the seminal vesicles is to
20. The function of the seminal vesicles is to: urine contains 36g of urea. What is the concentration of urea in the urine?

  • Produce nutrients for sperm

  • Allow sperm to mature

  • Store sperm temporarily

  • Produce testosterone


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