AFAA Personal Trainer Certification Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the AFAA Personal Trainer Certification Exam. Engage with quizzes, flashcards, and multiple-choice questions. Prepare efficiently with hints and explanations to achieve certification success.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which of the following is an example of incomplete protein?

Chicken
Lentils
Fish
Eggs

The correct answer is: Lentils

An incomplete protein is one that does not contain all nine essential amino acids in sufficient quantities. Lentils serve as an example of an incomplete protein because they lack some essential amino acids, particularly methionine and cysteine. This means that while lentils are a good source of protein, they need to be combined with other protein sources, such as grains, to provide a complete amino acid profile. On the other hand, chicken, fish, and eggs are examples of complete proteins, as they contain all nine essential amino acids required for human health. These complete proteins can provide the necessary building blocks for muscle repair, hormone production, and overall metabolic function, making them excellent choices for individuals seeking to optimize their protein intake. The distinction between complete and incomplete proteins is crucial, especially for those following vegetarian or vegan diets.