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IB Biology - Topic 2.1 - 2.4 review

Total questions: 47

Worksheet time: 47mins

Name
Class
Date
1.

Typically, in carbon compounds, how many bonds does carbon make?

a)

3

b)

4

c)

5

d)

none of the above

2.

Common types of carbon compounds in living organisms are:

a)

DNA, enzymes, nitrogenous bases, and amylose.

b)

Nucleic acids, amino acids, carbohydrates, and lipids.

c)

Urea, amino acids, nucleic acids, and carbohydrates

d)

Carbon dioxide, Lipids, carbohydrates, and proteins.

e)

Nucleic acids, proteins, carbohydrates, and lipids.

3.

Which is not true about carbohydrates?

a)

They contain oxygen and hydrogen in a 1:2 ratio.

b)

They contain carbon, oxygen, and hydrogen.

c)

They have hydroxyl groups.

d)

They have carboxyl groups.

4.

Which statement is true about amino acids?

a)

All amino acids have

C=CC=C double bonds

b)

All amino acids have amine groups.

c)

Some amino acids contain phosphorus.

d)

No amino acid contains sulfur.

5.

Where one part of water molecules is partially negative and the other is partially positive is called

a)

Bonding

b)

Polarity

c)

Charged

d)

Neutral

6.

When water molecules are near each other, what forms between them?

a)

nothing

b)

a tiny rope

c)

Attractive forces

d)

Hydrogen Bonds

7.

Hydrophillic means

a)

water-loving

b)

water-fearing

8.

In the Phospholipid bilayer, there is a __________ head and a ___________ tail.

a)

polar; nonpolar

b)

nonpolar; polar

9.

Which property of water would allow bugs to float on water?

a)

Cohesion

b)

Adhesion

c)

Thermal

d)

Solvent

10.

The energy required to increase 1g of a substance 1 degree Celcius is

a)

Boiling

b)

Increase in energy

c)

Freezing

d)

Specific Heat

11.

Because water is polar, it makes an effective

a)

Solute

b)

Solvent

12.

Which term describes the synthesis of complex molecules from simpler molecules?

a)

adhesion

b)

catabolism

c)

metabolism

d)

anabolism

13.

Which type of reaction is the breakdown of starch into sugars?

a)

Denaturation

b)

Reducation

c)

Catabolic

d)

Condensation

14.

Which type of chemical reaction is an example of anabolism?

a)

Photolysis

b)

Combustion

c)

Hydrolysis

d)

Condensation

15.

Carbohydrates contain the following elements:

a)

Carbon, Hydrogen, Oxygen

b)

Carbon, Hydrogen, Nitrogen

c)

Carbon, Hydrogen, Phosphorous

d)

Carbon, Oxygen, Nitrogen

16.

Lipids contain the following elements:

a)

Carbon, Oxygen, Sulfur

b)

Oxygen, Carbon, Nitrogen

c)

Carbon, Oxygen, Hydrogen

d)

Carbon, Nitrogen, Sulfur

17.

The monomers that make up polypeptides are called:

a)

amino acids

b)

fatty acids

c)

nucleotides

d)

monosaccharides

18.

Another name for a polypeptide is:

a)

lipid

b)

carbohydrates

c)

protein

d)

nucleic acid

19.

Which of the following molecules is the only one to contain nitrogen?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

water

20.

Which macromolecule is shown?

a)

lipid

b)

protein

c)

nucleic acid

d)

carbohydrate

21.

Which macromolecule is shown?

a)

lipid

b)

protein

c)

nucleic acid

d)

carbohydrate

22.
What type of macromolecule is being represented in this image? 
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
23.

Which is shown in the picture?

a)

Amino Acid

b)

Nucleotide

c)

Fatty Acid

d)

Monosaccharide

24.

Which is shown in the picture?

a)

Fatty Acid

b)

Monsaccharide

c)

Amino Acid

d)

Nucleotide

25.

The ability for water to form bonds with other polar molecules is called (a)   .

26.

The ability for water molecules to form bonds with itself is called (a)   .

27.

High temperatures can damage tissues and denature proteins causing _____________ to stop working.

a)

fatty acids

b)

nucleic acids

c)

enzymes

d)

carbohydrates

28.
More than one double bond
a)
Monounsaturated fatty acid
b)
Unsaturated fatty acid
c)
Polyunsaturated fatty acid
d)
Polysaccharides
29.
Branched, globular starch
a)
Amylopectin
b)
Glycogen
c)
Amylose
d)
Monosaccharides
30.
Shape of starch molecules
a)
Straight
b)
Curved
31.
Unbranched starch in helix form
a)
Amylopectin
b)
Glycogen
c)
Amylose
d)
Cellulose
32.
Fats that provide long term energy storage
a)
Lipids
b)
Glycogen
c)
Saturated fatty acid
d)
Glucose
33.
All single bonds between carbons
a)
cis or trans isomers
b)
Monounsaturated fatty acid
c)
Polyunsaturated fatty acid
d)
Saturated fatty acid
34.
Hydrogen atoms at a double bond are on the same side; bends; oils
a)
hydrolysis
b)
Cis
c)
Trans
d)
Glycogen
35.
A permanent change to the shape of a protein caused by the breaking of stabilizing bonds (h bonds) and interactions between R groups of their amino acids.
a)
Denaturation
b)
Dipeptide
c)
Condensation
d)
Collagen
36.
A covalent bond that joins amino acids, at the carboxyl group of one amino acid to the amino group of the other amino acid, with the release of a molecule of water.
a)
Ionic Bond
b)
Glycosidic bond
c)
Peptide bond
d)
Ester bond
37.
Examples of polysaccharides are ......
a)
glucose and fructose
b)
cellulose and starch
c)
sucrose and lactose
d)
sucrose and fructose
38.
The function of carbohydrates are ........
a)
insulation
b)
store genetic information
c)
long-term energy storage
d)
 energy and structure
39.

Starch is a mixture of which two polysaccharides?

a)

Amylose & Amylopectin

b)

Amylopectin & Cellulose

c)

Amylose & Cellulose

d)

Cellulose & Cellulite

40.
When two monosaccharides combine, they do so by a process called......
a)
condensation
b)
hydrolysis
c)
hydrogen bonding
d)
fusion
41.
When a disaccharide is broken apart the reaction is know as ......
a)
condensation
b)
hydrolysis
c)
hydrogen bonding
d)
fusion
42.
The bond linking together of monosaccharides to form disaccharides is called......
a)
glycosidic bond
b)
peptide bond
c)
ester bond
d)
ionic bond
43.
Starch, glycogen, and cellulose are all different because .....
a)
they are formed using different a combination of sucrose and glucose
b)
they are made using different forms of glucose
c)
they are formed using a different combination of glucose and fructose
d)
they are formed using different forms of sucrose
44.

Which monomers are in lactose?

a)

glucose

b)

galactose

c)

fructose

d)

ribose

e)

deoxyribose

45.

Which monomer(s) are released from the hydrolysis of starch?

a)

glucose

b)

galactose

c)

fructose

d)

ribose

e)

deoxyribose

46.

Which monomers are found in sucrose

a)

glucose

b)

galactose

c)

ribose

d)

deoxyribose

e)

fructose

47.

Which is correct?

a)

A

b)

B

c)

C

d)

D

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