Biochemistry Review

SBI 4UIMrs. Tuma

1. Which of the following are structural isomers of each other? (a) maltose and glucose (b) sucrose and glucose (c) dextrose and lactose (d) glucose and fructose

1. Which of the following are structural isomers of each other? (a) maltose and glucose (b) sucrose and glucose (c) dextrose and lactose (d) glucose and fructose

2. Which of the following functional groups is represented here?

(a) ester(b) amine(c) amide(d) ketone

2. Which of the following functional groups is represented here?

(a) ester(b) amine(c) amide(d) ketone

3. What type of macromolecule includes NH2 groups?

(a) fatty acids(b) glycogen(c) proteins(d) nucleic acids

3. What type of macromolecule includes NH2 groups?

(a) fatty acids(b) glycogen(c) proteins(d) nucleic acids

4. Animals store glucose in the form of…(a) glycogen(b) starch(c) cellulose(d) chitin

4. Animals store glucose in the form of…(a) glycogen(b) starch(c) cellulose(d) chitin

5. What level of structure is present in proteins that have a globular structure which includes irregular folding, based on the side-chain interactions?(a) primary(b) secondary(c) tertiary(d) quaternary

5. What level of structure is present in proteins that have a globular structure which includes irregular folding, based on the side-chain interactions?(a) primary(b) secondary(c) tertiary(d) quaternary

6. A hydrocarbon is saturated if…(a) one end is hydrophobic and the other end hydrophilic(b) it has one or more double bonds between carbon atoms(c) it has more than one functional group(d) it has all single bonds between carbon atoms

6. A hydrocarbon is saturated if…(a) one end is hydrophobic and the other end hydrophilic(b) it has one or more double bonds between carbon atoms(c) it has more than one functional group(d) it has all single bonds between carbon atoms

7. Polymerization reactions where polysaccharides are synthesized from monosaccharides or proteins are synthesized from amino acids…(a) result in the formation of water(b) are hydrolysis reactions(c) release energy(d) result in the formation of peptide bonds

7. Polymerization reactions where polysaccharides are synthesized from monosaccharides or proteins are synthesized from amino acids…(a) result in the formation of water(b) are hydrolysis reactions(c) release energy(d) result in the formation of peptide bonds

8. There are 20 essential amino acids. (a) True (b) False

8. There are 20 essential amino acids. (a) True (b) False (8 essential—must get in diet!)

9. Lipids are hydrophilic. (a)True (b) False

9. Lipids are hydrophilic. (a)True (b) False – they are hydrophobic!

10. Glycogen, cellulose, and starch are polymers of galactose. (a) True (b) False

10. Glycogen, cellulose, and starch are polymers of galactose. (a) True (b) False --- polymers of glucose

11. What parts make up a triglyceride? (a) steroids (b) glycerol, two fatty acids, phosphate & amine groups (c) glycerol and three fatty acids (d) glucose and galactose

11. What parts make up a triglyceride? (a) steroids (b) glycerol, two fatty acids, phosphate & amine groups (c) glycerol and three fatty acids (d) glucose and galactose

12. Which sugar does DNA contain? (a) ribose (b) deoxyribose (c) glucose (d) fructose

12. Which sugar does DNA contain? (a) ribose (b) deoxyribose (c) glucose (d) fructose

13. Which type of lipid is used by the body to make hormones such as testosterone and estrogen? (a) cholesterol (b) triglyceride (c) phospholipid (d) saturated fatty acid

13. Which type of lipid is used by the body to make hormones such as testosterone and estrogen? (a) cholesterol (b) triglyceride (c) phospholipid (d) saturated fatty acid

14. Which of the following elements is present in DNA? (a) sulfur (b) calcium (c) potassium (d) phosphorus

14. Which of the following elements is present in DNA? (a) sulfur (b) calcium (c) potassium (d) phosphorus

15. Which of the following is present in RNA and not DNA? (a) uracil (b) thymine (c) guanine (d) adenine

15. Which of the following is present in RNA and not DNA? (a) uracil (b) thymine (c) guanine (d) adenine

16. Which functional group is represented here?

(a) ether(b) ester(c) carboxylic

acid(d) ketone

16. Which functional group is represented here?

(a) ether(b) ester(c) carboxylic

acid(d) ketone

17. What is the amount of energy needed for a chemical reaction to occur? (a) ATP (b) activation energy (c) entropy (d) potential energy

17. What is the amount of energy needed for a chemical reaction to occur? (a) ATP (b) activation energy (c) entropy (d) potential energy

18. Consider: lactose lactase glucose + galactose What is the substrate? (a) lactase (b) lactose (c) glucose (d) galactose

18. Consider: lactose lactase glucose + galactose What is the substrate? (a) lactase (b) lactose (c) glucose (d) galactose

19. Which of the following is true concerning the sodium potassium pump? It… (a) sends 3 Na+ in and 2 K+ out (b) sends 2 Na + out and 3 K + in (c) sends 3 Na+ in and 2 K+ in (d) is active transport

19. Which of the following is true concerning the sodium potassium pump? It… (a) sends 3 Na+ in and 2 K+ out (b) sends 2 Na + out and 3 K + in (c) sends 3 Na+ in and 2 K+ in (d) is active transport

20. What type of transport does the CFTR membrane transport protein represent? (a) voltage gated transport (b) ligand gated transport (c) facilitated transport (d) bulk transport

20. What type of transport does the CFTR membrane transport protein represent? (a) voltage gated transport (b) ligand gated transport (c) facilitated transport (d) bulk transport