Answer:
ALL
steps
enzymes example amylase. in saliva, amylase turns starches into sugar
hormones example insulin. insulin lets sugar from food get into the blood so cells can use them
antibodies example white blood cells. white blood cells basically eat the germs that could hurt your body
collagen lets skin look wrinkles free
Proteins are built from smaller building blocks called amino acids.
The way these amino acids are arranged determines the protein's shape and function.
Proteins have many important functions, such as helping with digestion and building muscle tissue.
Without proteins, life as we know it would not be possible.
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