Oxygen Utilization and Nutrition for Physical Activity Quiz

17 Questions

What is the main metabolic adaptation that enhances glycogen sparing and the use of fat during exercise?

Increase in oxidative enzymes

During which type of exercise does the body primarily use fat as a fuel source?

Long-duration aerobic exercise

What is the main benefit of training with repeated bouts of aerobic exercise?

Increase in mitochondrial size and number

What is the total energy expenditure composed of?

Basal energy expenditure, physical activity, and the thermic effect of food

What is the recommended duration of moderate-intensity exercise per week for adults?

150 minutes

Which nutrient is needed for gene expression, production of sugar ribose, and RNA synthesis during pregnancy?

Thiamin

Which micronutrient is crucial for DNA synthesis and amino acid metabolism during pregnancy?

Folate

Which mineral is needed for the formation of new maternal and fetal cells during pregnancy?

Zinc

Which vitamin is necessary for cell differentiation and development during pregnancy?

Vitamin A

Which mineral is required for the growth and development of bone and connective tissue during pregnancy?

Calcium

Which nutrient is needed for the synthesis of thyroid hormones and deficiency can cause developmental disorders during pregnancy?

Iodine

What is the gold standard for cardiorespiratory fitness?

Oxygen utilization during intense exercise

What measures the volume of CO2 released/volume of O2 absorbed at the cellular level and in blood samples?

Respiratory quotient (RQ)

Which macronutrient has a specific respiratory quotient of 1.0?

CARBOHYDRATES

Which vitamins and minerals are crucial for physical activity?

Vitamin C, vitamin D, iron, calcium

What is essential for eliminating heat, transporting O2 and nutrients, and preventing dehydration?

Water

What is important for hemoglobin production and its regulation involves factors like hepcidin, transferrin, ferroportin, and ferritin?

Iron

Study Notes

Oxygen Utilization and Nutrition for Physical Activity

Oxygen utilization during intense exercise is an indicator of aerobic endurance.
It is the gold standard for cardiorespiratory fitness and is influenced by genetics and training.
Respiratory quotient (RQ) measures the volume of CO2 released/volume of O2 absorbed at the cellular level and in blood samples.
RER measures the volume of CO2 released/volume of O2 absorbed through the mouth/nose.
Different macronutrients have specific respiratory quotients: FAT (0.7), PROTEIN (0.8-0.9), CARBOHYDRATES (1.0).
Exercise and nutrition needs depend on duration, intensity, and frequency, and various vitamins and minerals play essential roles in energy metabolism.
Thiamin (B1), riboflavin (B2), niacin (B3), biotin, pantothenic acid, vitamin C, vitamin E, calcium, and vitamin D are crucial for physical activity.
Water is essential for eliminating heat, transporting O2 and nutrients, and preventing dehydration.
Iron is important for hemoglobin production, and its regulation involves absorption, release, and storage in the body.
Iron regulation includes factors like hepcidin, transferrin, ferroportin, and ferritin for maintaining optimal levels.
Iron deficiency can lead to anemia, while iron toxicity can occur in conditions like hemochromatosis.
Nutrition and pregnancy involve a series of developmental stages, from fertilization to fetal development, with specific milestones for each stage.

Test your knowledge of oxygen utilization and nutrition for physical activity with this quiz. Explore concepts like aerobic endurance, respiratory quotient, macronutrient-specific RQs, exercise and nutrition needs, vital vitamins and minerals for energy metabolism, the role of water and iron, and nutrition during pregnancy.

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