Principles of Functional Exercise

CHAPTER 7

1. Myofibrils are the contractile components that allow for strength and the performance of work.
   A. True
   B. False


2. Actin and Myosin are proteins that work independently in the Myofibrils
   A. True
   B. False


3. What is ATP?
   A. Energy
   B. Protein
   C. Fats
   D. Carbohydrates


4. Which is NOT a muscle type description:
   A. Skeletal
   B. Cardiac
   C. Respiratory
   D. Smooth


5. Which one is not a muscle fiber type?
   A. White fast twitch
   B. White slow twitch
   C. Red fast twitch
   D. Red slow twitch


6. White fast twitch muscle fibers have a tremendous number of capillaries allowing for
   long-term sustained activity.
   A. True
   B. False


7. A motor unit is a single motor neuron plus all muscle fibers to which it connects.
   A. True
   B. False