CISSN Chapter 1 Questions with Correct SolutionsCISSN Chapter 1 Questions with Correct SolutionsCISSN Chapter 1 Questions with Correct SolutionsCISSN Chapter 1 Questions with Correct Solutions
There are three separate, but functionally integrated energy systems within muscle fibers that are capabl...
CISSN Chapter 1 Questions with Correct
Solutions
There are three separate, but functionally integrated energy systems within muscle
fibers that are capable of providing ATP for cellular work. Which of the following are not
considered as one of those systems?
A. Glycogenolytic
B. Immediate
C. Lactic Acid
D. All of these - ANSWER-A. Glycogenolytic
Which energy system is considered to be anaerobic and lactic and relies on the stored
intracellular levels of ATP, which are coupled to CP stored within the muscle fiber?
A. Lactic Acid
B. Immediate
C. Oxidative
D. All of these - ANSWER-B. Immediate
During exercise there is a heightened demand for energy to sustain muscular
contraction. This energy can be obtained from:
A. The hydrolysis of ATP to form ADP and inorganic phosphate (Pi)
B. The isomeric conversion of lactic acid to pyruvate
C. Myokinase converting ATP to AMP
D. Hexokinase dephosphorylating glucose - ANSWER-A. The hydrolysis of ATP to form
ADP and inorganic phosphate (Pi)
Very short, explosive, powerful movements can typically require larger amounts of
energy produced, but the muscle's capacity to do so is very limited. As a result, the
overall capacity for the immediate energy system to provide energy is considered to be:
A. 1-5 seconds
B. 10-15 seconds
C. 0-30 seconds
D. 30-60 seconds - ANSWER-B. 10-15 seconds
During maximal, non-aerobic exercise in a trained individual the ability of the muscle
fiber to generate ATP through glycolysis is considered approximately:
A. 1 to 2 minutes
B. 2 to 4 minutes
, C. 6 to 12 minutes
D. None of these - ANSWER-B. 2 to 4 minutes
During 30 seconds of maximal exercise, the utilization of muscle glycogen for ATP
synthesis begins almost immediately, and production of ATP from the lactic acid system
reaches it maximum ATP-generating potential at approximately __________ seconds of
maximal exercise and can be maintained for up to approximately _____________
seconds.
A. 1, 5
B. 2, 6
C. 5, 10
D. 15, 20 - ANSWER-D. 15, 20
Which of the following is the only nutrient capable of generating ATP through the
glycolytic pathway?
A. Creating monohydrate
B. Triglyceride
C. Carbohydrate
D. Protein - ANSWER-C. Carbohydrate
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 - ANSWER-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 - ANSWER-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
C. Have a very good "aerobic" potential
D. Are to as fast glycolytic (FG) fibers - ANSWER-C. Have a very good "aerobic"
potential
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