RIO SALADO BIO 201 ANATOMY AND
PHYSIOLOGY FINAL ACTUAL EXAM PAPER
2026 QUESTIONS WITH SOLUTIONS GRADED
A+
◉ What is a fascicle?
A) muscle
B) bundle of muscle fibers enclosed by a connective tissue sheath
C) bundle of myofibrils
D) group of myofilaments. Answer: B) bundle of muscle fibers
enclosed by a connective tissue sheath
◉ What are the differences, if any, in the composition for thick and
thin myofilaments?
A) Thin filaments contain actin, troponin and attach to the Z disc.
B) Thick filaments contain ATPases, myosin and does not lie in the I
band.
C) Thick and thin filaments generally have the same composition.
,D) Both A and B are correct.. Answer: D) Both A and B are correct.
Thin filaments contain actin, troponin and attach to the Z disc. Thick
filaments contain ATPases, myosin and does not lie in the I band.
◉ What are the sites called where the motor nerve impulse is
transmitted from the nerve endings to the skeletal muscle cell
membranes?
A) neuromuscular junctions
B) sarcomeres
C) myofilaments
D) Z discs. Answer: A) neuromuscular junctions
◉ What is a contraction elicited by a single brief stimulus called?
A) a twitch
B) wave summation
C) multiple motor unit summation
D) fused tetanus. Answer: A) a twitch
◉ What is the function of T tubules in muscle contraction?
A) make and store glycogen
,B) release CA2+ into the cell interior and then pick it up again
C) transmit action potential deep into the muscle cells
D) form proteins. Answer: C) transmit action potential deep into the
muscle cells
◉ What is a smooth sustained contraction called that result from
very rapid stimulation of the muscle, in which no relaxation is seen?
A) a twitch
B) wave summation
C) multiple motor unit summation
D) fused tetanus. Answer: D) fused tetanus
◉ Characteristics of isometric contractions include all of the
following except?
A) shortening
B) increased muscle tension throughout the contraction phase
C) absence of shortening
D) use in resistance training. Answer: A) shortening
, ◉ During muscle contraction, ATP is provided by (A) a coupled
reaction of creatine phosphate with ADP (B) aerobic respiration of
glucose, and (C) anaerobic glycolysis? (multiple answers may apply)
1) Provides ATP fastest?
2) Does/do not require that oxygen be available?
3) Highest yield of ATP per glucose molecule?
4) Results in the formation of lactic acid?
5) Has carbon dioxide and water products?
6) Most important in endurance sports?. Answer: 1) A) a coupled
reaction of creatine phosphate with ADP
2) A) a coupled reaction of creatine phosphate with ADP
and C) anaerobic glycolysis
3) B) aerobic respiration of glucose
4) C) anaerobic glycolysis
5) B) aerobic respiration of glucose
6) B) aerobic respiration of glucose
◉ What is the neurotransmitter released by somatic motor neurons
called?
A) acetylcholine
B) acetylcholinesterase
PHYSIOLOGY FINAL ACTUAL EXAM PAPER
2026 QUESTIONS WITH SOLUTIONS GRADED
A+
◉ What is a fascicle?
A) muscle
B) bundle of muscle fibers enclosed by a connective tissue sheath
C) bundle of myofibrils
D) group of myofilaments. Answer: B) bundle of muscle fibers
enclosed by a connective tissue sheath
◉ What are the differences, if any, in the composition for thick and
thin myofilaments?
A) Thin filaments contain actin, troponin and attach to the Z disc.
B) Thick filaments contain ATPases, myosin and does not lie in the I
band.
C) Thick and thin filaments generally have the same composition.
,D) Both A and B are correct.. Answer: D) Both A and B are correct.
Thin filaments contain actin, troponin and attach to the Z disc. Thick
filaments contain ATPases, myosin and does not lie in the I band.
◉ What are the sites called where the motor nerve impulse is
transmitted from the nerve endings to the skeletal muscle cell
membranes?
A) neuromuscular junctions
B) sarcomeres
C) myofilaments
D) Z discs. Answer: A) neuromuscular junctions
◉ What is a contraction elicited by a single brief stimulus called?
A) a twitch
B) wave summation
C) multiple motor unit summation
D) fused tetanus. Answer: A) a twitch
◉ What is the function of T tubules in muscle contraction?
A) make and store glycogen
,B) release CA2+ into the cell interior and then pick it up again
C) transmit action potential deep into the muscle cells
D) form proteins. Answer: C) transmit action potential deep into the
muscle cells
◉ What is a smooth sustained contraction called that result from
very rapid stimulation of the muscle, in which no relaxation is seen?
A) a twitch
B) wave summation
C) multiple motor unit summation
D) fused tetanus. Answer: D) fused tetanus
◉ Characteristics of isometric contractions include all of the
following except?
A) shortening
B) increased muscle tension throughout the contraction phase
C) absence of shortening
D) use in resistance training. Answer: A) shortening
, ◉ During muscle contraction, ATP is provided by (A) a coupled
reaction of creatine phosphate with ADP (B) aerobic respiration of
glucose, and (C) anaerobic glycolysis? (multiple answers may apply)
1) Provides ATP fastest?
2) Does/do not require that oxygen be available?
3) Highest yield of ATP per glucose molecule?
4) Results in the formation of lactic acid?
5) Has carbon dioxide and water products?
6) Most important in endurance sports?. Answer: 1) A) a coupled
reaction of creatine phosphate with ADP
2) A) a coupled reaction of creatine phosphate with ADP
and C) anaerobic glycolysis
3) B) aerobic respiration of glucose
4) C) anaerobic glycolysis
5) B) aerobic respiration of glucose
6) B) aerobic respiration of glucose
◉ What is the neurotransmitter released by somatic motor neurons
called?
A) acetylcholine
B) acetylcholinesterase
