Question

Kevin's Lactate Concentration in the Blood (Blue points, circle symbol)
Duration of exercise (Minutes)	0	2	4	6	8	10
Lactate concentration in the blood (Percent)	0	15	25	35	45	50

Dmitri's Lactate Concentration in the Blood (Orange points, square symbol)
Duration of exercise (Minutes)	0	2	4	6	8	10
Lactate concentration in the blood (Percent)	0	5	10	10	15	20

KevinDmitri024681050403020100Lactate concentration in the blood (Percent)Duration of exercise (Minutes)

Which man is doing a workout that primarily involves anaerobic exercise?

a.Kevin

b. Dmitri

In the previous question, you identified the individual who was completing aerobic exercise. This aerobic exercise helps to increase  

a. musculoskeletal fitness

b. flexibility

c. cardiorespiratory fitness

, or the ability to perform moderate-to-high-intensity activity involving large muscle groups for long periods of time.

Identify the activities that would most likely improve an individual’s cardiorespiratory fitness.  Check all that apply.

a.Bench pressing

b.Stretching

c.Triathlon

d.Running

What is true about this pathway for forming ATP? Check all that apply. ALL THE ANSWER THAT APPLY

This pathway typically utilizes creatine phosphate supplies to provide short bursts of high-intensity contractile effort.

Known as glycolysis, this pathway is ideal for endurance-type exercises, where glycogen stores are slowly and steadily depleted to provide a consistent rate of ATP production.

This pathway is typically used when oxygen delivery or oxidative phosphorylation capacity is exceeded.

Compared to oxidative phosphorylation, this pathway can generate ATP more rapidly but also depletes glycogen stores more rapidly.

Answer 1

Kevin is involved in an anaerobic workout where the lactose concentration is very high compared to Dmitri's report. Option a is the correct answer.

Aerobic exercise helps to increase cardiorespiratory fitness. Option c is the correct answer.

The activities that would most likely improve an individual’s cardiorespiratory fitness are triathlon and running. Options c and d are correct answers.

Pathway for forming ATP

This pathway typically utilizes creatine phosphate supplies to provide short bursts of high-intensity contractile effort. Known as oxidative phosphorylation.

Known as glycolysis, this pathway is ideal for endurance-type exercises, where glycogen stores are slowly and steadily depleted to provide a consistent rate of ATP production.

This pathway is typically used when oxygen delivery or oxidative phosphorylation capacity is exceeded. Also known as the Krebs cycle or citric acid cycle or tricarboxylic acid cycle.