1. cells use glucose to make
energy.
proteins.
enzymes.
vitamins.
2. which of the following is broken down to provide the body with glucose?
proteins
vegetable oils and animal fats
simple sugars and starches
vitamins
3. what makes essential fatty acids and essential amino acids different from ones that aren’t essential?
essential nutrients are more important than others, so the body needs more of them.
nutrients that are essential cannot be made by the body, so they must be obtained from food.
brain cells need only the essential nutrients, so they are important for clear thinking.
all essential nutrients are water-soluble, so they all must be replaced every day.
4. a car is to gasoline as your body is to
your stomach.
your kidneys.
food.
enzymes.
5. starches are to simple sugars as proteins are to
fatty acids.
double bonds.
amino acids.
carbohydrates.

Mr. j, age 42, is a construction worker in las vegas. he recently noticed that a mole on his face seemed to be getting larger and darker. at first he did not worry because he was in the sun a lot and assumed the change may have been caused by sunburn. after a month, not only was the mole larger and darker, but it appeared to be “bumpy.” his doctor diagnosed a malignant melanoma skin cancer following biopsy of the nevus. mr. j reports pain in his right shin that does not go away when he puts his feet up or sleeps. discussion questions 1. relate mr. j’s skin changes to the warning signs for malignant melanoma. (see malignant melanoma.) 2. discuss the normal progression of this malignancy. what is the significance of the bone pain that mr. j is experiencing? (see malignant melanoma.) 3. discuss the treatment available for this patient and the prognosis for recovery. (see malignant melanoma.)