A)In which chemical forms can carbohydrates occur? 1-straight chains
2-single rings
3-multiple rings
4-all of the above

B)Which carbohydrate contains the most carbon atoms?
1-ribose
2-fructose
3-galactose
4-maltose

C)What do phospholipids consist of?
1-fatty acids, glycerol, phosphate, polar alcohol
2-fatty acids, cholesterol, phosphate, polar alcohol
3-fatty acids, glycerate, phosphate
4-phosphate and lipoproteins

D)Which of the following is *not* a polysaccharide?
1-lactose
2-glycogen
3-cellulose
4-chitin

E) What determines the properties of different amino acids?
1-the position of the acidic group
2-the position of the amino group
3-the side chain
4-all amino acids have basically the same properties