Human Body Systems
Questions about human physiology including the circulatory, excretory, and respiratory systems, plus basic plant biology concepts.
Questions
Question 1 Multiple Choice (Single Answer)
What of the following statements is correct for pulmonary vein?
- It supplies blood to the heart muscles.
- It is the largest blood vessel in man.
- It is the smallest vein in our body.
- It is the only vein in our body to carry pure blood.
- It supplies blood to the organs in our body.
Question 2 Multiple Choice (Single Answer)
What is needed for a person with renal failure to stay alive?
- ECG
- Dialysis
- Pacemaker
- Heart-lung machine
- Angioplasty
Question 3 Multiple Choice (Single Answer)
Which of the following statements is incorrect about nephrons?
- Tubular re-absorption does not occur in the nephron.
- The loop of Henle in nephron has a descending limb and an ascending limb.
- Nephrons are long tubular structures with a cup-shaped Bowman’s capsule.
- The amount of urine formed varies at different times.
- It has blood capillaries called glomeruli.
Question 4 Multiple Choice (Single Answer)
Which of the following organisms show two kinds of respiratory mechanisms?
- Man
- Amoeba
- Frog
- Paramecium
- Fish
Question 5 Multiple Choice (Single Answer)
The pacemaker of the human heart is situated in________.
- left atrium
- right atrium
- right ventricle
- left ventricle
- aorta
Question 6 Multiple Choice (Single Answer)
Which of the following functions is not associated with stomata?
- Intake of oxygen.
- Intake of carbon dioxide.
- Intake of nitrate.
- Release oxygen.
- Release carbon dioxide.
Question 7 Multiple Choice (Single Answer)
Which of the following functions is not performed by human kidney?
- Kidneys reabsorb useful materials.
- Kidneys help in osmoregulation.
- Kidneys regulate ionic balance in our body.
- Kidneys help to excrete urea.
- Kidneys help to excrete uric acid.
Question 8 Multiple Choice (Single Answer)
In which of the following cases is dialysis required for a person?
- If a kidney stone is there.
- If a person suffers from a heart attack.
- If one kidney is not functioning properly.
- If a person is bitten by a viper snake.
- If ultrafiltration does not happen in the kidney.