Straighterline Introduction to Nutrition Final Exam: Study Guide & Practice Test 2024

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STRAIGHTERLINE INTRODUCTION TO NUTRITION

FINAL EXAMS (LATEST 2025 UPDATES BUNDLED

TOGETHER PACKAGE ) QUESTIONS AND VERIFIED

ANSWERS | 100% CORRECT | A GRADE

physical fitness .....ANSWER.....the ability to perform moderate to

vigorous activity without undue fatigue

ATP (adenosine triphosphate) .....ANSWER.....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) .....ANSWER.....A breakdown

product of ATP. Synthesized into ATP using energy from

foodstuffs and a phosphate group.

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phosphocreatine (PCr) .....ANSWER.....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 .....ANSWER.....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)

.....ANSWER.....to make ATP.

First line of defense for resupplying ATP in muscles

.....ANSWER.....PCr (phosphocreating)

The main advantage of phosphocreatine .....ANSWER.....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.

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Disadvantage of phosphocreatine .....ANSWER.....Not much of it is

made and stored in the muscles

Ues of glucose to make ATP can be either __ or __

.....ANSWER.....anaerobic or aerobic

Anaerobic glucose breakdown .....ANSWER.....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

.....ANSWER.....(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 .....ANSWER.....a three-carbon compound formed

during glucose metabolism, also called pyruvate

lactic acid .....ANSWER.....A three-carbon acid formed during

anaerobic cell metabolism; a partial breakdown product of

glucose; also called lactate.

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Aerobic glucose breakdown is a ___ energy source

.....ANSWER.....sustained

aerobic breakdown of glucose yields approximately __ percent

of the ATP made from complete glucose metabolism

.....ANSWER.....95%.

Products of aerobic glucose breakdown .....ANSWER.....carbon

dioxide and water as opposed to the lactic acid of anaerobic

glucose breakdown

bonking .....ANSWER.....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 .....ANSWER.....liver (not muscle0

____ glycogen is used to maintain blood glucose

.....ANSWER.....liver