Human physiology worksheet with answers

Free printable Human physiology worksheet: 8 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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Name: ____________________   Date: ____________

1.Easy

Which hormone lowers blood glucose?

  1. AGlucagon
  2. BInsulin
  3. CAdrenaline
  4. DCortisol
2.Easy

Which enzyme begins protein digestion in the stomach?

  1. APepsin
  2. BAmylase
  3. CLipase
  4. DLactase
3.Easy

What is the liquid part of blood in which the cells are suspended called?

  1. ACytoplasm
  2. BInterstitial fluid
  3. CPlasma
  4. DLymph
4.Medium

Which ABO blood group has both anti-A and anti-B antibodies in the plasma?

  1. AGroup A
  2. BGroup AB
  3. CGroup O
  4. DGroup B
5.Medium

Which ion enters the cell to cause the depolarisation phase of a typical neuronal action potential?

  1. ACalcium (Ca²⁺)
  2. BChloride (Cl⁻)
  3. CSodium (Na⁺)
  4. DPotassium (K⁺)
6.Medium

Mean arterial pressure is approximately equal to:

  1. AStroke volume × total peripheral vascular resistance
  2. BCardiac output ÷ heart rate
  3. CHeart rate × stroke volume
  4. DCardiac output × total peripheral resistance
7.Hard

In long-standing aortic stenosis, how does the left ventricle adapt?

  1. ANo change because the valve is not part of the ventricle
  2. BThinning of the wall with dilation
  3. CConcentric hypertrophy with a thicker wall
  4. DAtrophy of the muscle due to less work
8.Hard

Which transporter in the thick ascending limb of the loop of Henle is key to building the medullary concentration gradient?

  1. AThe Na⁺–K⁺–2Cl⁻ cotransporter (NKCC2)
  2. BAquaporin-2 water channels
  3. CThe sodium–glucose cotransporter (SGLT2)
  4. DThe epithelial sodium channel (ENaC)

Answer key

  1. 1. B · Insulin
  2. 2. A · Pepsin
  3. 3. C · Plasma
  4. 4. C · Group O
  5. 5. C · Sodium (Na⁺)
  6. 6. D · Cardiac output × total peripheral resistance
  7. 7. C · Concentric hypertrophy with a thicker wall
  8. 8. A · The Na⁺–K⁺–2Cl⁻ cotransporter (NKCC2)

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