1. Diamond is concerned about getting all the essential amino acids from her diet. Of the 20 amino acids that are commonly found in living tissues, how many of them are considered essential and cannot be made by a healthy adult? O a. 12 O b. 11 O c.9 O d. 6 O e. 5 2. Because she is so active, cardiovascular fitness is important to Diamond. She learns that hemoglobin is an important globular protein molecule in red blood cells that carries oxygen. She also learns that adequate dietary protein and which mineral are needed for her body to build enough hemoglobin? a. collagen b. magnesium O c. calcium d. iron O e. tyrosine 3. Where in Diamond's body are tripeptides and dipeptides split into single amino acids that are readily absorbed? O a. stomach b. small intestine O c. large intestine O d. liver O e. kidneys

1. Diamond is concerned about getting all the essential amino acids from her diet. Of the 20 amino acids that are commonly found in living tissues, how many of them are considered essential and cannot be made by a healthy adult? O a. 12 O b. 11 O c.9 O d. 6 O e. 5 2. Because she is so active, cardiovascular fitness is important to Diamond. She learns that hemoglobin is an important globular protein molecule in red blood cells that carries oxygen. She also learns that adequate dietary protein and which mineral are needed for her body to build enough hemoglobin? a. collagen b. magnesium O c. calcium d. iron O e. tyrosine 3. Where in Diamond's body are tripeptides and dipeptides split into single amino acids that are readily absorbed? O a. stomach b. small intestine O c. large intestine O d. liver O e. kidneys