CISSN CHAPTER 1 QUESTIONS WITH
COMPLETE SOLUTIONS
Lower intensity, sustained exercise produces a need for the rate
of ATP delivery that is less as during the Lactic Acid System;
therefore, ATP is produced by the Oxidative System primarily by
the combustion of which of the following macronutritents?
A. Carbohydrates and fatty acids
B. Vitamins and minerals
C. Proteins and fatty acids
D. Proteins and carbohydrates - ANS -A. Carbohydrates and
fatty acids
Each sarcomere contains a number of important myofibrillar
proteins, and the two contractile proteins that interact with and
slide over one another act in producing muscle contraction are
known as:
A. Actin and Myosin
, B. Troponin and Tropomyosin
C. Desmin and Dystrophin
D. None of these - ANS -A. Actin and Myosin
Which of the following describes a motor unit?
A. Several muscle fibers are innervated/controlled by a single a-
motor neuron
B. The functional unit of the neuromuscular system
C. a-motor nerve depolarization causes several muscle fibers to
contract
D. All of these - ANS -D. All of these
Compared to Type I and Type IIa, which of the following are not
true regarding Type IIx muscle fibers?
A. More anaerobic as they contain higher amounts of CK than
other fibers
B. Contain a greater amount of glycolytic enzymes and fewer
mitochondria
COMPLETE SOLUTIONS
Lower intensity, sustained exercise produces a need for the rate
of ATP delivery that is less as during the Lactic Acid System;
therefore, ATP is produced by the Oxidative System primarily by
the combustion of which of the following macronutritents?
A. Carbohydrates and fatty acids
B. Vitamins and minerals
C. Proteins and fatty acids
D. Proteins and carbohydrates - ANS -A. Carbohydrates and
fatty acids
Each sarcomere contains a number of important myofibrillar
proteins, and the two contractile proteins that interact with and
slide over one another act in producing muscle contraction are
known as:
A. Actin and Myosin
, B. Troponin and Tropomyosin
C. Desmin and Dystrophin
D. None of these - ANS -A. Actin and Myosin
Which of the following describes a motor unit?
A. Several muscle fibers are innervated/controlled by a single a-
motor neuron
B. The functional unit of the neuromuscular system
C. a-motor nerve depolarization causes several muscle fibers to
contract
D. All of these - ANS -D. All of these
Compared to Type I and Type IIa, which of the following are not
true regarding Type IIx muscle fibers?
A. More anaerobic as they contain higher amounts of CK than
other fibers
B. Contain a greater amount of glycolytic enzymes and fewer
mitochondria
