Diet & Exercise 2

Question 1

What is the primary fuel source for moderate-intensity aerobic exercise lasting longer than 20 minutes?

Accepted Answer

Fat

Answer

After the first 20 minutes of moderate aerobic exercise, fat becomes the dominant fuel source as glycogen stores deplete.

Question 2

Which vitamin is essential for calcium absorption, which supports bone health during weight-bearing exercise?

Accepted Answer

Vitamin D

Answer

Vitamin D regulates calcium absorption in the gut, making it critical for maintaining bone density in athletes and active individuals.

Question 3

An athlete training twice per day should prioritize which recovery nutrition strategy between sessions?

Accepted Answer

Carbohydrate-rich snack within 30 minutes

Answer

Consuming carbohydrates within 30 minutes post-session rapidly restores glycogen, enabling adequate energy for the second training bout.

Question 4

Resistance training primarily increases resting metabolic rate by doing what?

Accepted Answer

Building lean muscle mass that burns more calories at rest

Answer

Muscle tissue is metabolically active and burns more calories at rest than fat tissue, so increasing muscle mass raises the basal metabolic rate.

Question 5

Which dietary pattern best supports fat loss while preserving muscle during a calorie deficit?

Accepted Answer

High protein intake combined with resistance training

Answer

Adequate protein intake (1.6–2.2 g/kg body weight) combined with resistance training preserves muscle mass during a caloric deficit.

Diet Practice Test