SUBSCRIBE
BIOS 100
1. What is the difference between saturated and unsaturated fats?:
Answer Unsaturat- ed fats contain double bonds
2. What is the level of structure is represented by a strand of hair?:
Answer quaternary structure hair represents multiple strands of keratin cross-linked by disulfide bridges.
3. What is the difference between starch and cellulose?:
Answer In cellulose, the glu- cose monomers are assembled in an alternating pattern. In starch, the glucose monomers are not alternated.(The glucose monomers of starch are assembled facing in the same direction each time. This bond can be broken by the enzymes in our mouth and intestines.)
- Why would a food manufacturer wish to use hydrogenated vegetable oils in food products
like potato chips?:
Answer They are solid like saturated animal fats and contain no cholesterol.
5. What is the difference between carbohydrates and lipids?:
Answer Carbohydrates have mostly polar bonds and lipids do not.(The presence of oxygen makes carbo- hydrates more polar. Lipids have very little oxygen overall.)
- Which part of a nucleotide provides the information in DNA that codes for proteins?:
Answer the nitrogenous base
7. All monosaccharides and disaccharides dissolve in water.Why is this?:
Answer The oxygen in carbohydrates creates polar bonds.
- / 1