Excretion: O Level Biology Notes App | IGCSE O Level Biology Notes e-Book PDF
IGCSE O Level Biology MCQs (O Level) From Textbook

IGCSE O Level Biology Exam MCQs – Practice Test 4 (Chapter 8)

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Excretion O Level Biology Test Questions and Answers PDF Download: MCQ 4

MCQ 16: Kidney tubules are also known as:

  1. collecting tubules
  2. renal pelvis
  3. ureter
  4. nephrons

MCQ 17: In mammals, an important part in excretion is played by:

  1. lungs
  2. liver
  3. kidneys
  4. large intestines

MCQ 18: For excretion, animals with impermeable skin use:

  1. simple diffusion process
  2. produce concentration gradient
  3. special excretory glands
  4. special excretory organs

MCQ 19: Each nephron consists of:

  1. distal convoluted tubule
  2. proximal convoluted tubule
  3. Bowman' capsule
  4. all of above

MCQ 20: Renal pelvis is the enlarged portion of:

  1. renal artery
  2. renal vein
  3. hilus
  4. ureters

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