gcse biology

mcqspedia.com has 8 Question/Answers about Topic gcse biology

Elastin in walls of alveoli is destroyed due to

Elastin in walls of alveoli is destroyed due to
  • A. smoker's cough
  • B. enlargement of right side of heart
  • C. a decreasing in pulmonary artery occurs
  • D. an enzyme secreted by phagocytes in an attempt to get rid of bacteria settling in lining of lungs
  • Correct Answer: Option D

These have thickest walls

These have thickest walls
  • A. arteries
  • B. veins
  • C. both arteries and veins
  • D. capillaries
  • Correct Answer: Option A

Rate of transpiration increases if

Rate of transpiration increases if
  • A. it is windy
  • B. if temperature is low
  • C. it is night time
  • D. None of above
  • Correct Answer: Option A

Seed germination in plants is controlled through

Seed germination in plants is controlled through
  • A. gibberellins
  • B. auxins
  • C. Abscisic acid
  • D. All of above
  • Correct Answer: Option B

Word “Saccharide” refers to

Word “Saccharide” refers to
  • A. many
  • B. sweet
  • C. water
  • D. None of above
  • Correct Answer: Option B

Function of meninges is to

Function of meninges is to
  • A. protect brain
  • B. protect spinal cord
  • C. protect digestive organs
  • D. both A and B
  • Correct Answer: Option D

One of most common essential component of many co-enzymes is

One of most common essential component of many co-enzymes is
  • A. Vitamin D12
  • B. Vitamin K
  • C. Vitamin E
  • D. Vitamin B complex
  • Correct Answer: Option D

Collapse of xylem tissues is prevented through

Collapse of xylem tissues is prevented through
  • A. wide lumen
  • B. narrow lumen
  • C. lignin deposition
  • D. presence of pits
  • Correct Answer: Option C