ALA 1

Which macronutrient do our bodies break down the fastest? Ex. During a maximal intensity 300-meter sprint (~ 30 seconds)

• Fats

• Proteins

• CHO

• All the above

Which of the following processes increase when under-consuming food and/or when there is depletion in muscle and liver glycogen stores?

• Protein Synthesis

• Proteolysis

• Lipolysis

• Glycolysis

What is the product that comes from converting energy stored as substrates to a form that our bodies use for energy?

• Kcals

• ATP

• Macronutrients

• Liver Glycogen

• Glucose

A cyclist finishes a two-hour bike session in which they fasted AND did not consume food during the workout. Which of the following processes would we expect to be elevated during and after the session?

• Glycogenolysis

• Gluconeogenesis

• Lipogenesis

• Lipolysis

• Glycogenesis

Which hormone is released to decrease blood glucose levels?

• Glucagon

• Cortisol

• Glycogenesis

• Insulin

In the Ex Phys-lab, Jules is running on the treadmill at a speed that is 80% of her HRmax. Ian is observing the test while sitting in a chair and is considered at rest. Who is using a higher percentage of CHO’s than Fats as their primary energy source?

• Ian

• Jules

• Both are using the same amount of these substrates for energy

• Cannot be determined based on the information given

Muscle glycogen is primarily used for _____.

• Making ATP in the muscle cells

• Creating ATP from fats

• Creating ketones for the brain

• Managing blood glucose levels

• Fueling muscle contraction (ex. during exercise)

According to the Continuum Diagram, under what conditions can CHO be metabolized?

• Aerobically only

• Anaerobically only

• Aerobic and Anaerobically

• Cannot be determined based on the information given.

What type of sugars illicit a fast spike in blood sugar?

• Simple sugars

• Complex fast-digesting sugars

• Complex slow-digesting sugars

• Fructose

Sarah, a dedicated biology student, studied late into the night after a 1-hour run. Due to an unexpected power outage, she couldn't eat anything for hours. As her glucose levels dropped, her body needed a way to maintain blood sugar. In this situation, which metabolic process would likely become crucial for Sarah's body to generate glucose?

• Glycolysis

• Gluconeogenesis

• Glycogenolysis

• Lipogenesis