IB DP Biology Topic 2 Biochemistry Quiz
1. Maltose is an example of a(an):
a. Monoglyceride
b. Diglyceride
c. Disaccharide
d. Protein
2. This is the general formula for monosaccharides.
a. C6H12O6
b. COOH
c. Starch
d. CnH2nOn
3. The monomer that creates the polymer protein.
a. Amino acid
b. Monoglyceride
c. Glucose
d. Glycerol
4. Organic chemistry is the study of compounds that contain what element?
a. Carbohydrate
b. Polymer
c. Carbon
d. Oxygen
5. These are the monomers for carbohydrates
a. Amino acids
b. Sucrose
c. Fatty acids
d. Monosaccharides
6. Which is not a polysaccharide?
a. Starch
b. Lactose
c. Glycogen
d. Cellulose
7. Animals store fat energy as what molecule?
a. Glycogen
b. Starch
c. Phospholipids
d. Triglycerides
8. Cells use this type of molecule to increase the rate of a reaction.
a. DNA
b. Enzyme
c. Lipid
d. Nucleic acid
9. Catabolic reactions:
a. Break down large molecules into smaller ones
b. Involve condensation reactions
c. Always involve carbohydrates
d. Combine smaller molecules into larger ones
10. This type of reaction requires the addition of water as a reactant
a. Condensation
b. Hydrolysis
c. Anabolic
d. Enzyme
11. Glucose and fructose combine to form:
a. The monosaccharide sucrose
b. The disaccharide maltose
c. The disaccharide sucrose
d. The monosaccharide lactose
12 . Glycerol is a required molecule of the formation of:
a.
b.
c.
d.
Fatty acids
Diglyceride
Polysaccharide
Protein
13. An NH2 group will always be found as part of what type of molecule?
a. amino acid
b. fatty acid
c. lipid
d. organic
14. Water is polar because:
a.
b.
c.
d.
The oxygen atom has a partially positive charge
The hydrogen atoms are partially negative
The hydrogen atoms are partially positive while the oxygen is partially negative
It has a low boiling point
15. Cohesion is defined as:
a.
b.
c.
d.
Water molecules being attracted to other polar molecules
The hydrogen atoms in water covalently bonding to other water molecules
Covalent bonding of oxygen atoms in water to other water molecules
The hydrogen atoms in water bonding to the oxygen atoms in other water molecules by
hydrogen bonding.
16. Water is able to climb to the tops of tall trees against the force of gravity due to:
a.
b.
c.
d.
Cohesion
Adhesion
Both cohesion and adhesion
Protein pumps
17. Water has a high heat of vaporization. This means water can absorb a great deal of heat when it
does what?
a. bonds to other molecules
b .evaporates
c. condenses
d. dissolves things
18. Carbohydrates, proteins and ions are very soluble in water due to the fact that:
a.
b.
c.
d.
Water is cohesive
Water is polar
Water has a high specific heat
Water is adhesive
19. A monosaccharide with 5 carbons would be:
a.
b.
c.
d.
A triose sugar
A molecule with a molecular formula C6H12O6
Ribose
A monomer of starch
20. Water is able to climb to the tops of tall trees against the force of gravity due to:
a.
b.
c.
d.
Cohesion
Adhesion
Both cohesion and adhesion
Protein pumps
21. This polysaccharide is composed of Beta glucose molecules
a.
b.
c.
d.
Cellulose
Starch
Glycogen
Chitin
22. Where would you expect to find a 1,6 glycosidic bond?
a.
b.
c.
d.
Cohesion
Triglyceride
Glycogen
Glycerol
23. All fatty acids have a carboxylic acid group (-COOH) at one end and what at the other?
a.
b.
c.
d.
Amine
Double bond
Glycerol
Methyl group (-CH3)
24. Which is true of most unsaturated fatty acids?
a.
b.
c.
d.
Found in animal fats
No double bonds
Liquid at room temperature
Generally are not good for you
25. An omega -3 monounsaturated fatty acid will have:
a.
b.
c.
d.
3 double bonds
A double bond at carbon 3
3 glycerols
No double bonds
Which molecule is a:
26. Glycerol a. 1
b. 6
27. Saturated fatty acid
c. 10
d. 14
a. 1
b. 4
28. Maltose
a. 2
b. 8
c. 12
d. 15
29. Ribose
a. 6
b. 12
c. 15
d. 13
b. 5
c. 6
d. 14
30. Amino acid a. 8
c. 7
d. 9