Straighterline Nutrition FINAL Questions
and Answers Already Passed
physical fitness ✔✔the ability to perform moderate to vigorous activity without undue fatigue
ATP (adenosine triphosphate) ✔✔the main energy currency
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Straighterline Nutrition FINAL Questions
and Answers Already Passed
physical fitness ✔✔the ability to perform moderate to vigorous activity without undue fatigue
ATP (adenosine triphosphate) ✔✔the main energy currency for cells. Used to promote ion
pumping, enzyme activity, and muscular contraction. The immediate source of energy for body
functions.
ADP (adenosine diphosphate) ✔✔A breakdown product of ATP. Synthesized into ATP using
energy from foodstuffs and a phosphate group.
phosphocreatine (PCr) ✔✔A high-energy compound that can be used to re-form ATP. It is used
primarily during bursts of activity, such as lifting and jumping.
creatine ✔✔An organic (i.e. carbon containing) molecule in muscle cells that serves as a part of a
high-energy compound (termed creatingphosphate or phosphocreatine) cable of synthesizing ATP
from ADP.
The primary goal in the use of any fuel (carb, fat, protein) ✔✔to make ATP.
First line of defense for resupplying ATP in muscles ✔✔PCr (phosphocreating)
The main advantage of phosphocreatine ✔✔It can be activated instantly and can replenish ATP at
rates fast enough to meet the energy demands of the fastest and most powerful actions.
Disadvantage of phosphocreatine ✔✔Not much of it is made and stored in the muscles
Ues of glucose to make ATP can be either __ or __ ✔✔anaerobic or aerobic
Anaerobic glucose breakdown ✔✔yields energy fast. It provides most of the energy needed for
events that require a quick burst of energy (sprints)
Disadvantage of the anaerobic breakdown of glucose ✔✔(1) cannot be sustained for long periods
of time and (2) the rapid accumulation of lactic acid greatly increases the acidity of the muscle.
pyruvic acid ✔✔a three-carbon compound formed during glucose metabolism, also called
pyruvate
lactic acid ✔✔A three-carbon acid formed during anaerobic cell metabolism; a partial breakdown
product of glucose; also called lactate.
Aerobic glucose breakdown is a ___ energy source ✔✔sustained
aerobic breakdown of glucose yields approximately __ percent of the ATP made from complete
glucose metabolism ✔✔95%.
Products of aerobic glucose breakdown ✔✔carbon dioxide and water as opposed to the lactic acid
of anaerobic glucose breakdown
bonking ✔✔diminished mental ability as the result of blood glucose declining during exercise
Fall in blood glucose during exercise is related to the depletion of ____ glycogen ✔✔liver (not
muscle0
____ glycogen is used to maintain blood glucose ✔✔liver
what is the main fuel for prolonged low-intensity activity ✔✔fat
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