PES Quiz8

The mixture of carbohydrates and fat as fuel is close to equal at a Respiratory Quotient (RQ) of _____;above that, carbohydrates are the predominant energy source while below that, fats are the predominant energy source .071 0.75 0.80 0.85

0.85

A 25 year old athlete exercising in Zone1 should keep his/her heart rate between: 127-146 beats per minute (bpm) 156-166 beats per minute (bpm) 168-177 beats per minute (bpm) 179-185 beats per minute (bpm)

127-146 beats per minute (bpm)

Which formula is used to determine an athletes maximum heart rate? 180 minus client's age 200 minus client's age 220 minus client's age 240 minus client's age

220 minus client's age

Resting cardiac output is typically ____L/min at rest and approximately ______L/min during maximum exercise 1, 1-4 2, 5-10 4, 11-15 6, 20-25

6, 20-25

At the onset of exercise the ____ system is the first active bioenergetic pathway ATP-CP glycolytic oxidative electron transport chain

ATP-CP

What is the primary fuel for anaerobe ATP production for activities lasting 45-120 seconds? Oxygen Muscle glycogen calcium fatty acids

Muscle glycogen

Exercise at an intensity that results in a respiratory quotient (RQ) of 0.9-1.0 would be considered _____, which corresponds to about 80-85% of maximum heart rate Zone 1 Zone 2 Zone 3 Zone 4

Zone 2

Most cells (including muscle fibers) contain ______, which is the site of aerobic ATP production actin myosin mitochondria neurons

mitochondria

The process which brings oxygen from the air, across the alveolar membrane and into the blood to be carried by hemoglobin is BEST defined as cardiac output stroke volume pulmonary ventilation respiratory quotient

pulmonary ventilation

The waste products of aerobic ATP production are ____ and ______, which are both easily processed by the body making aerobic energy production the more efficient method of generating energy and averting muscle fatigue lactic acid, calcium creatine phosphate, lactic acid water, CO2 creatine phosphate, ADP

water, CO2