PCAT

PCAT practice questions, page 9 of 12, with answer review and explanations.

Question 41

Why does the lactic acid pathway predominate in anaerobic respiration?

  1. because the lactic acid can be made into oxygen when needed
  2. because O is needed for the creation of NADH
  3. because O is required for glycolysis
  4. without O there is no electron acceptor for the ETC

Question 42

Which pathway accounts for the least amount of ATP generated (by the pathway)?

  1. glycolysis
  2. TCA cycle
  3. ETC
  4. all have an equal number of ATP made

Question 43

An action potential would travel fastest in:

  1. unmyelinated, thick axon
  2. myelinated, thick axon
  3. unmyelinated, thin axon
  4. myelinated thin axon

Question 44

Where is the ETC located in bacteria?

  1. mitochondria
  2. Golgi apparatus
  3. peroxisome
  4. plasma membrane

Question 45

Which of the following is NOT made by the pituitary gland?

  1. ACTH
  2. ADH
  3. FSH
  4. LH