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HMD 211 Exam Questions And Complete
Answers
If you want to purchase ground beef that fits the definition of "lean" meat, what "percent lean" should you look for on the label? - Answer 90/
What foods are rich sources of saturated fat? - Answer Beef fat, pork fat, milk fat, lard, palm and coconut oil, full fat dairy products
What foods are sources of monounsaturated fatty acids? - Answer Nuts, olive oil, canola oil, peanut oils.
What is the structure of a triglyceride? (In other words, what is it composed of?) - Answer 3 fatty acids and a glycerol backbone
What type of fatty acid has more than one double bond? - Answer Phospholipids
Alpha-linolenic acid (ALA), docosahexaenoic acid (DHA) and eicosatetraenoic acid (EPA) belong to which family of fatty acids? - Answer Omega 3 fatty acids
What is one function of phospholipids? - Answer Cell membranes: lipid bilayer
Lipoproteins: particles that carry lipids in the blood
How many fatty acids are attached to a phospholipid? - Answer 2
Where do the components of chylomicrons come from? - Answer Comes from the Small intestine,
TG, Cholesterol and phospholipids are packaged into chylomicrons and then go to lymph
What is the name of the enzyme that digests TG in the small intestine? - Answer Pancreatic Lipase
What does the above enzyme break TG down into? - Answer Monoglycerides, glycerol and longer chain fatty acids.
What happens in the small intestine wall after absorption of fat? - Answer After fat is emulsified in the small intestine wall, then long chain fatty acids are formed. Then TG, cholesterol, and phospholipids all come together to form chylomicrons which then travel into the lymph system.
Which lipoprotein particle is designed to deliver cholesterol to cells?
Which lipoprotein particle removes cholesterol from cells? - Answer HDL
What effect does saturated fat intake have on cholesterol levels? - Answer Saturated fat makes LDL cholesterol levels go up.
Which type of oil does the Mediterranean diet emphasize? - Answer Olive Oil
What dietary changes can you make to decrease cardiovascular disease risk? - Answer Not smoking, eating reduced fat foods or foods with low saturated fats, working out
What are the basic building blocks of proteins? - Answer Carbon, hydrogen, oxygen, nitrogen
Amino Acids
In what areas of the GI tract does chemical digestion of protein occur? - Answer Stomach, Small intestine
What does it mean to denature? - Answer Denature means to unwind, like it unwinds the different strands in proteins and activates pepsin
**Unwinding/ unfolding of a protein
What do pepsin and hydrochloric acid do to digest protein? - Answer HCL helps to denature the protein and pepsin breaks the protein in to shorter polypeptide chain of amino acids (breaks up some of the
