There are only five health-related fitness components and these are:
a. Cardiovascular Endurance - refers to the ability of your circulatory and respiratory systems, how they work together.
b. Muscular Strength - the maximum amount force that your muscles can exert in one effort.
c. Muscular Endurance - the ability of your muscles to perform without feeling easily fatigued.
d. Flexibility - the ability of your joints to move and bend through a full range of motion.
e. Body composition - refers to the proportions of your lean and fat tissue.
Answer: Humans can produce 10 of the 20 amino acids. The others must be supplied in the food. Failure to obtain enough of even 1 of the 10 essential amino acids, those that we cannot make, results in degradation of the body's proteins—muscle and so forth—to obtain the one amino acid that is needed.