Chapter Questions and Valid Answers.
Which of the following is NOT a characteristic of bioenergetics?
A. breakdown of food
B. conversion of chemical energy to mechanical energy
C. conversion of mechanical energy to chemical energy
D. break down of chemical bonds correct answers C
How many molecules of ATP are produced from glycolysis of one molecule of glucose in the
blood?
A. 1
B. 2
C. 3
D. 4 correct answers B
Which of the following energy systems is the primary source of energy at rest and during aerobic
activities?
A. phosphagen system
B. anaerobic glycolysis
C. oxidative
D. anaerobic lipolysis correct answers C
Glycogen becomes the preferred fuel source at intensities above about
_________________________ of maximal oxygen uptake
A. 30-40%
B. 60-75%
C. 80-90%
D. 90-100% correct answers B
When relying on the slower ATP-producing energy systems, ATP can be produced as long as the
body has a good supply of ___________________
I. muscle glycogen
II. fatty acids
III. protein
IV. creatine phosphate
A. I only
B. III and IV only
C. I, II, and III only
D. II and IV only correct answers C
,In biomechanics, the term "body" refers to which of the following?
I. the human body
II. limb segment
III. piece of chalk
A. I only
B. II only
C. III only
D. I, II, and III correct answers D
Which of the following is the equation that represents work?
A. force x distance moved
B. force + distance moved
C. force - distance moved
D. force / distance moved correct answers A
Which of the following is INCORRECT regarding rate of force development?
A. It is the ratio of the change in force over the change in time
B If rate of force development is high, power is also high
C. It is time rate of change of force
D. It can be improved with resistance training correct answers B
Which of the following is INCORRECT regarding the use of heavy metal chains on a barbell?
A. They can be used with linear movements
B. The chains add resistance throughout the range of motion
C. The chains provide greater resistance at the weakest part of the range of motion
D. Chains can be used in exercises such as the squat or bench press correct answers C
With water resistance, if the surface area is ______________________, the exercise will be
_____________________
I. smaller, easier
II. larger, easier
III. smaller, harder
IV. larger, harder
A. I only
B. II only
C. I and IV only
D. II and III only correct answers C
, Which of the following is INCORRECT regarding the stress responses to resistance exercise?
A. can lead to increases in bone mineral density
B. is a negative response that inhibits adaptation
C. leads to muscle growth
D. results in increased strength correct answers B
Which of the following is NOT a steroid hormone?
A. testosterone
B. growth hormone
C. estrogen
D. any hormone derived from cholesterol correct answers B
Which of the following is INCORRECT regarding endocrine adaptations to resistance exercise?
A. testosterone has been shown to increase
B. chronic changes to hormones are greater than acute changes
C. resistance exercise leads to upregulation of androgen receptor content
D. growth hormone does NOT appear to increase correct answers B
Which of the following is INCORRECT regarding individuals who possess the ACTN XX
genotype?
A. they respond less well to resistance training
B. commercial DNA testing companies can inform individuals if they possess it
C. the ACTN gene is responsible for producing a structural Z-line protein found mainly in type II
muscle fibers
D. being a carrier of the ACTN XX genotype does not present deleterious health consequences
correct answers A
Approximately how often does resistance exercise need to be performed to prevent detraining?
A. 3 sessions per week
B. 1 or 2 sessions per week
C. 1 session every 2 weeks
D. 1 session per month correct answers B
Which of the following increases during an aerobic exercise bout?
A. respiratory exchange rate
B. blood pH
C. insulin
D. plasma volume correct answers A
Which of the following represents the Fick Equation?