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Honors Bio 2 Ch. 2-5 Review

Total questions: 35

Worksheet time: 35mins

Name
Class
Date
1.

What is a functional group?

a)

Group of atoms that give specific characteristics to a molecule

b)

Group of molecules that give specific characteristics to an atom

c)

Group of molecules that make up a group of atoms

d)

Group of atoms that give specific characteristics to an element

2.

Large molecules made up of small monomers are called

a)

polymers

b)

monomer

c)

allotrope

d)

functional group

3.
Which formula represents an amino acid?
a)
a.
b)
b. 
c)
c.
d)
d.
4.
DNA is a polymer formed from 
a)
fatty acids. 
b)
monosaccharides.
c)
amino acids.
d)
nucleotides.
5.
Proteins are polymers formed from 
a)
lipids.
b)
carbohydrates.
c)
amino acids.
d)
nucleic acids.
6.
Which one is NOT a function for Carbohydrates?
a)
Short Term Energy
b)
Cell walls
c)
Digestion
d)
Plant Structure
7.
Organic molecules that always contain carbon, oxygen and hydrogen, often in a 1:2:1 ratio
a)
carbohydrates
b)
functional groups
c)
enyzme
d)
monosaccaride
8.
A type of biological molecule that includes fats, oils, hormones, waxes, and components of cellular membranes ...
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
9.
What is the pH level of an acid?
a)
7.1-14
b)
14-21
c)
0-6.9
d)
7
10.
What is the pH level of a base?
a)
7.1-14
b)
0-6.9
c)
14-21
d)
7
11.
A solution that keeps pH from changing.
a)
glucose
b)
carbohydrate
c)
monomer
d)
Buffer
12.
Which of the following properties of water enables it to move from the roots to the leaves of plants?
a)
Water is less dense as a solid than as a liquid.
b)
Water has a high specific heat.
c)
Cohesion due to hydrogen bonding  and adhesion due to water's polar nature.
d)
Water is a solvent.
13.
Why does ice float?
a)
As water freezes, it expands and its density decreases.
b)
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
c)
As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
d)
As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
14.

molecule with the same molecular structure but different structural formula

a)

fats

b)

lipids

c)

fossil fuels

d)

isomers

15.

which bond does carbon mostly form

a)

hydrogen bond

b)

dipole-dipole

c)

covalent bond

16.
What are the four main categories of organic compounds?
a)
Carbohydrates
Batman
Alucard
The Dark Side of the Force
b)
Carbon
Protons
Nuclear energy
Triffids
c)
Mitochondria
Endoplasmic reticulum 
Ribosome
Nucleus
d)
Carbohydrates
Proteins
Nucleic acids
Lipids
17.
True or False? Lipids are Hydrophilic.
a)
True
b)
False
18.

What monomer makes up carbohydrates?

a)

Amino acids

b)

Monosaccharides

c)

Glycerol and fatty acids

d)

Nucleotides

19.
How many electron pairs does carbon share in order to complete its valence shell?
a)
1
b)
3
c)
4
d)
8
20.

Which of the following statements correctly describes geometric (cis-trans) isomers?

a)

They have the same chemical properties

b)

They have an asymmetrical carbon that makes them mirror images

c)

They have different molecular formulas

d)

They have variations in arrangement around a double bond

21.
Thalidomide and L-dopa, shown below, are examples of pharmaceutical drugs that occur as enantiomers, or molecules that
a)
are cis-trans isomers
b)
are mirror images of one another
c)
are mirror images of one another and have the same biological activity
d)
have identical three-dimensional shapes
22.
Which of the groups shown above is a carbonyl functional group?
a)
A
b)
B
c)
C
d)
D
23.
Which molecule shown above has a carbonyl functional group in the form of a ketone?
a)
A
b)
B
c)
C
d)
D
24.
Which functional group has the molecular formula of CH3?
a)
Methyl
b)
Amino
c)
Hydroxy
d)
Carbonyl
25.
Which property is most closely associated with the hydroxyl functional group?
a)
Polar
b)
Nonpolar
c)
Basic
d)
Acidic 
26.

What type of isomer is shown?

a)

Structrual isomers

b)

geometric isomers

c)

Enantiomers

d)

They're not isomers, its the same structure

27.
What makes a molecule polar?
a)
Equal sharing of valence electrons
b)
Unequal sharing of valence electrons
c)
Stealing of electrons
d)
Temporary charges that come and go
28.
Which of the following is an organic compound?
a)
H2O
b)
C6H12O6
c)
NH2
d)
OH
29.
Water molecules require a lot of energy to break the hydrogen bonds.  This gives water a high
a)
density
b)
polarity
c)
solvency
d)
specific heat
30.
Large bodies of water do not quickly fluctuate, or change, in temperature. Why?
a)
Water is a solvent.
b)
Water has a high heat capacity.
c)
Water acts as a buffer.
d)
Water is non-polar.
31.
Some insects can stand on the surface of calm water. Their feet push the surface of the water down slightly, but they do not break the surface. Why?
a)
The insects are light enough so they do not break the hydrogen bonds holding the water molecules together
b)
The insects actually use their wings to hover slightly above the water’s surface and they only skim it with their feet.
c)
The insect’s feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water’s surface.
d)
The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next
32.

Nucleic acids are mad up of nucleotide. What is the structure of a nucleotide?

(hint: look for a 5-Carbon Sugar Molecule)

a)
b)
c)
d)
33.

What Organic molecule is a biologically functional molecule that consists of one or more polypeptides folded and coiled into a specific 3-D structure?

a)

Lipid

b)

Carbohydrate

c)

Nucleic Acid

d)

Protein

34.

A fat that is liquid at room temperature because of the kinks in the molecule. (ex. Plant oils)

a)

Supersaturated

b)

Unsaturated

c)

Saturated

d)

I am playing games on my phone now.

35.

This is two simple sugars put together to make a complex sugar,

a)

Disaccharide

b)

Bisaccharide

c)

dos saccharide

d)

two saccaride

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