BIO 201 RIO SALADO FINAL EXAM BIO 2O1

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BIO 201 RIO SALADO FINAL EXAM / BIO 2O1

ANATOMY AND PHYSIOLOGY NEWEST 2025

ACTUAL EXAM COMPLETE 200 QUESTIONS

AND CORRECT DETAILED ANS WERS

(VERIFIED ANSWERS) |ALREADY GRADED A+

(BRAND NEW VERSION!)

• **What is the connective tissue covering that encloses the

sarcolemma of an individual muscle fiber? A) epimysium B) perimysium C) endomysium D) periosteum** the correct answer is C) endomysium

• **What is a fascicle? A) muscle B) bundle of muscle fibers

enclosed by a connective tissue sheath C) bundle of myofibrils

• group of myofilaments**

the correct answer is 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.**

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the correct answer is 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** the correct answer is 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** the correct answer is 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** the correct answer is 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

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relaxation is seen? A) a twitch B) wave summation C) multiple motor unit summation D) fused tetanus** the correct answer is 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** the correct answer is 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?** the correct answer is 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

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• **What is the neurotransmitter released by somatic motor

neurons called? A) acetylcholine B) acetylcholinesterase C) norepinepherine** the correct answer is A) acetylcholine

• **What are the ions that enter the muscle cell during action

potential generation called? A) calcium ions B) chloride ions C) sodium ions D) potassium ions** the correct answer is C) sodium ions

• **What is the special function of Myoglobin in muscle

tissue? A) break down glycogen B) is a contractile protein C) holds a reserve supply of oxygen in the muscle** the correct answer is C) holds a reserve supply of oxygen in the muscle

• **Aerobic exercise results in all of the following except? A)

increased cardiovascular system efficiency B) more mitochondria in the muscle cells C) increased size and strength of existing muscle cells D) increased neuromuscular system coordination** the correct answer is C) increased size and strength of existing muscle cells