CISSN Chapter 1 (Energy Systems And Skeletal Muscl
CISSN Chapter 1 (Energy Systems and Skeletal Muscl
Exam (elaborations)
CISSN Chapter 1 (Energy Systems and Skeletal Muscle Plasticity Questions And Answers Latest Updates
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CISSN Chapter 1 (Energy Systems and Skeletal Muscl
Institution
CISSN Chapter 1 (Energy Systems And Skeletal Muscl
The immediate energy system in skeletal muscle is comprised of ______________
separate chemical reactions which all working in an integrated manner during highintensity, explosive exercise, to degrade ATP, such that energy can be liberated and
used for myocellular work. - ️️three (3)
This re...
CISSN Chapter 1 (Energy Systems and
Skeletal Muscle Plasticity
The immediate energy system in skeletal muscle is comprised of ______________
separate chemical reactions which all working in an integrated manner during high-
intensity, explosive exercise, to degrade ATP, such that energy can be liberated and
used for myocellular work. - ✔️✔️three (3)
This reaction in the immediate energy system utilizes the ADP from reaction 1 and
combines it with another ADP to form ATP and AMP, catalyzed by the enzyme
adenylate kinase/myokinase. - ✔️✔️Reaction 2b: ADP + ADP _____
myokinase______ > ATP + AMP
The ability of skeletal muscle to perform work to sustain muscle contraction, are
contingent on the availability of ______________________. - ✔️✔️adenosine
triphosphate (ATP)
The issue of ATP availability is a function of the muscle fiber's ability to synthesize ATP
from _______________________ and to also resynthesize itself once it has been
degraded to yield energy. - ✔️✔️macronutrients (carbs, fats, proteins)
Within the muscle fiber, there are three "systems" in which ATP is provided for cell
work, often termed the __________________. - ✔️✔️three metabolic energy systems
What are the three metabolic energy systems? - ✔️✔️1. Immediate Energy System
2. Lactic Acid System
3. Oxidative System
The immediate energy system is considered to be ________________ and
_______________ meaning that it does not rely on oxygen to drive this process, as
ATP and creatine phosphate (CP) hydrolysis does not depend on oxygen availability nor
does it yield lactic acid (as with glycolysis). - ✔️✔️-anaerboic
and
-alactic
The immediate energy system involves the stored intracellular levels of ATP, which are
coupled to creatine phosphate (CP) stored within the muscle fiber. This constitutes the
________________ System. - ✔️✔️ATP-CP System (phosphagen system)
, This reaction in the immediate energy system involves the hydrolysis of ATP to form
ADP and inorganic phosphate (Pi), and is catalyzed by ATPase. - ✔️✔️Reaction 1:
ATP + H20 ____ATPase________ > ADP + Pi
This reaction in the immediate energy system utilizes the ADP from reaction 1 and is
used to combine with creatine phosphate (CP) to form ATP and creatine (C), catalyzed
by the enzyme creatine kinase (CK). - ✔️✔️Reaction 2a: ADP + CP _____ creatine
kinase______ > ATP + C
In the immediate energy system, both the creatine kinase (CK) and myokinase
reactions (reactions 2a & 2b) produce ATP, however, the ________________ reaction
yields the greatest amount of ATP. - ✔️✔️Creatine Kinase (CK) Reaction (Reaction 2a)
The overall capacity in which the immediate energy system is capable of supplying
energy through ATP degradation is highly _______________. The total quantity of ATP
stored with a muscle fiber is very ________________. - ✔️✔️- limited
- small
In the immediate energy system, the idea that the quantity of ATP stored in a muscle
fiber is very small suggests that muscle ATP concentration is actually not an energy
store per se, rather an essential requirement for optimal ____________ function. -
✔️✔️cell
In the immediate energy system, any reduction in ATP levels coincides with cellular
conditions associated with ______________________. Therefore, the duration for
sustained maximal anaerobically-related exercise performance is very
______________________. - ✔️✔️-muscle fatigue
- short
The immediate energy system is the primary energy system behind very short,
explosive, powerful movements like ____________________. - ✔️✔️-a golf swing
- a 100m sprint
- heavy resistance exercise
Short-duration, high intensity exercise (i.e. longer than several seconds) relies on fast
(i.e. ___________________________ system) as well as the stored phosphagens to a
lesser extent. - ✔️✔️lactic acid energy system
The cell's ability to maximally generate _________ form glycolysis is achieved when
exercise intensity requires energy production greater than a person's maximum oxygen,
and is performed for as long as possible. - ✔️✔️ATP
On average, in a trained individual the duration in which ATP generation can be
adequately maintained is between ____ and ____ minutes. - ✔️✔️2 and 4 minutes
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