wits study guide practice exam questions & answers 2024/2025
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Course
Wits
Institution
Wits
wits study guide practice exam questions & answers 2024/2025
Personal Trainer Certification
Practice Exam #1
1.)_________________ is the most important source of immediate energy which lasts about 3 - 5 seconds
(Ch. 4, P. 66) - ANSWERS...a.Phosphocreatine
2.)During muscle contra...
wits study guide practice exam
questions & answers 2024/2025
Personal Trainer Certification
Practice Exam #1
1.)_________________ is the most important source of immediate energy which lasts about 3 - 5
seconds
(Ch. 4, P. 66) - ANSWERS...a.Phosphocreatine
2.)During muscle contraction, the _______________ releases calcium into the sarcoplasm, which allows
for actin-myosin interaction.
(Ch. 4, P. 68) - ANSWERS...b.sarcoplasmic reticulum
3.)Which type of muscle fiber not only produces great force when stimulated but also resists fatigue?
(Ch. 4, P. 69) - ANSWERS...b.Type IIa
4.)The volume of blood pumped by the heart per beat is known as ______________.
(Ch. 4, P. 78) - ANSWERS...d.stroke volume
,5.)What are the primary reasons women have lower VO2max values than men?
(Ch. 4, P. 76) - ANSWERS...c.hemoglobin levels and body fat percentage
6.)As the respiratory exchange ratio (R) increases, ______________ become the primary fuel source for
activity.
(Ch. 4, P. 73) - ANSWERS...a.carbohydrates
7.)Studies have revealed that ____________ is the most significant factor in maintaining VO2max with a
reduced training load.
(Ch. 4, P. 83) - ANSWERS...c.intensity
8.)_________ is the primary energy source cells use for biological work.
(Ch. 4, P. 66) - ANSWERS...b.ATP
9.)Which form of heat loss occurs when heat is transferred from the surface of one object to the surface
of another with no physical contact between the objects?
(Ch. 4, P. 85) - ANSWERS...d.radiation
10.)____________ is the volume of blood pumped by the heart per minute.
(Ch. 4, P. 78) - ANSWERS...d.Cardiac output
11.)During a ____________, participants exercise at progressively increasing work rates until they reach
maximum work tolerance.
,(Ch. 4, P. 75) - ANSWERS...a.graded exercise test (GXT)
12.)The period of elevated oxygen uptake during recovery from exercise is known as __________.
(Ch. 4, P. 74) - ANSWERS...c.oxygen debt
13.)As the respiratory exchange ratio (R) decreases, the primary fuel utilized for exercise is
________________.
(Ch. 4, P. 73) - ANSWERS...b.fat
14.)Which component of a cell is a major player for the production of ATP during aerobic metabolism?
(Ch. 4, P. 66) - ANSWERS...a.mitochondria
15.)The fundamental unit of muscle contraction is the _____________.
(Ch. 4, P. 67) - ANSWERS...d.sarcomere
16.)During periods of exercise, _______________ is the body's primary form of heat loss.
(Ch. 4, P. 86) - ANSWERS...c.evaporation
17.)An increase in the frequency of muscle stimulation into a smooth, sustained, high-tension
contraction is called ____________.
(Ch. 4, P. 70) - ANSWERS...b.tetanus
, 18.)Which type of muscle fibers contract quickly and have an innate capacity to produce great force, but
fatigue quickly?
(Ch. 4, P. 69) - ANSWERS...c.Type IIx
19.)In the general population, _____________ is the major variable influencing maximal cardiac output.
(Ch. 4, P. 79) - ANSWERS...a.stroke volume
20.)For the average male and female, about _________ of muscle fibers are type I.
(Ch. 4, P. 69) - ANSWERS...a.52%
21.)Which anaerobic energy pathway provides energy for maximal work lasting about two minutes?
(Ch. 4, P. 66) - ANSWERS...d.glycolysis
22.)What protein does calcium bind to when it is released into the sarcoplasm during muscle
contraction?
(Ch. 4, P. 68) - ANSWERS...b.troponin
23.)The volume of oxygen missing during the first few minutes of work is the ____________.
(Ch. 4, P. 74) - ANSWERS...B.oxygen deficit
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