Practice Test Geeks(NCCPT) National Council for Certified Personal Trainers Practice Test
← All NCCPT Flashcard Decks

Nutrition and Energy Systems Flashcards

7 cards from real NCCPT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Nutrition and Energy Systems flashcards as text

  1. A client exercising at 85% VO2max is primarily using which energy system?

    Answer: Glycolytic system with some oxidative contribution

    At ~85% VO2max, the glycolytic (anaerobic) system predominates, though the oxidative system continues to contribute, as intensity is above the lactate threshold.

  2. What is the net ATP yield from one molecule of glucose during anaerobic glycolysis?

    Answer: 2 ATP

    Anaerobic glycolysis yields a net of only 2 ATP per glucose molecule, producing lactate as the final end product instead of entering the Krebs cycle.

  3. Which of the following best describes the role of carnitine in fat metabolism?

    Answer: It transports long-chain fatty acids across the inner mitochondrial membrane

    Carnitine is essential for shuttling long-chain fatty acids across the inner mitochondrial membrane so they can undergo beta-oxidation.

  4. Which hormone primarily stimulates glycogenolysis and gluconeogenesis during fasting or intense exercise?

    Answer: Glucagon

    Glucagon, released by pancreatic alpha cells in response to low blood glucose, stimulates hepatic glycogenolysis and gluconeogenesis to raise blood sugar.

  5. What is the recommended dietary protein intake for an adult engaged in regular resistance training, per the NCCPT guidelines?

    Answer: 1.2–2.0 g/kg body weight/day

    Resistance-trained individuals generally require 1.2–2.0 g of protein per kg of body weight per day to support muscle repair and hypertrophy.

  6. Which of the following describes a ketogenic state?

    Answer: Elevated production of ketone bodies from fat when carbohydrate availability is very low

    Ketosis occurs when carbohydrate intake is severely restricted, causing the liver to oxidize fatty acids and produce ketone bodies (acetoacetate, beta-hydroxybutyrate) as an alternative fuel.

  7. Phosphofructokinase (PFK) is an important regulatory enzyme in which metabolic pathway?

    Answer: Glycolysis

    PFK is a key rate-limiting enzyme in glycolysis, catalyzing the conversion of fructose-6-phosphate to fructose-1,6-bisphosphate and regulating glycolytic flux.