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Unit 2 Review - Chemistry of Life

Total questions: 75

Worksheet time: 1hrs 2mins

Name
Class
Date
1.
Which statement is a part of the cell theory?
a)
all cells come from preexisting cells
b)
bacteria are prokaryotic cells
c)
eukaryotic cells are complex
d)
humans are multicellular
2.
The ___ is the basic unit of sturucture and function of organisms
a)
atom
b)
cell
c)
matter
d)
all other answers are correct
3.

What cell part is NOT found in all cells?

a)

Chloroplasts

b)

Cell Membrane

c)

Cytoplasm

d)

Nucleus

4.

This cell part is in ALL cells. It is the gel-like substance that provides cell shape.

a)

Chloroplasts

b)

Cell membrane

c)

Cytoplasm

d)

Nucleus

5.

What type of cell is pictured above?

a)

Plant Cell

b)

Animal Cell

6.

What type of cell is pictured above?

a)

Plant Cell

b)

Animal Cell

7.

What are two major differences found in plant and animal cells?

a)

Plant cells have a cell wall and chloroplasts, while animal cells do not.

b)

Plant cells have a nucleus and vacuoles, while animal cells do not.

c)

Plant cells have no mitochondria or cytoplasm, while animal cells do.

d)

They are the same.

8.

Which table headings should the student use for the two groups?

a)

1. Animal cells………..2. Plant Cells

b)

1. Prokaryotic cells…..2. Eukaryotic cells

c)

1. Mobile cells………..2. Motile cells

d)

1. Fungal cells………..2. Bacterial cells

9.

A single- celled organism can be classified as a prokaryote based on the absence of…..

a)

a cell membrane.

b)

a nucleus.

c)

cytoplasm.

d)

ribosomes.

10.

What do Eukaryotes and Prokaryotes both share?

a)

Ribosomes

b)

Cytoplasm

c)

DNA

d)

Ribosomes, Cytoplasm and DNA

11.

Some students used information they gathered from lab investigation to prepare a table. They entered the table in their lab notebook.

a)

Cell 1 is eukaryotic, and Cell 2 is Prokaryotic

b)

Cell 1 is prokaryotic, and Cell 2 is Eukaryotic

c)

Both cell 1 and Cell 2 are Eukaryotic

d)

Both Cell 1 and Cell 2 are Prokaryotic

12.

I am staphylococcus epidermidis and I live on your skin. I am apart of your normal flora in your body, although I am not like your other cells in your body. I am very small and can replicate very quickly. Inside my cell I only have DNA, Ribosomes and Cytoplasm. My DNA is also free floating in my cell and very messy. What type of cell am I?

a)

Skin cell

b)

Eukaryotic cell

c)

Prokaryotic cell

d)

A Virus

13.

What is the function of nucleic acids?

a)

Stores energy

b)

Stores and transmits genetic information

c)

Movement

d)

Physical structure

14.
Proteins are made of monomers called ___________
a)
Nucleotides
b)
Monosaccharides
c)
Amino Acids
d)
Glycerol and fatty acids
15.
The element _______is found in all of the organic compounds.
a)
Iron
b)
Nitrogen
c)
Carbon
d)
Oxygen
16.
_________ are composed out of carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and phosphorus (P)
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
17.
DNA and RNA are examples of 
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
18.
Nucleotides are monomers of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
19.
Monosaccharides are monomers of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
20.
Waxes, oils and fats are examples of
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
21.

Glycerol and fatty acids (triglycerides) are the monomers of

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

22.
The organic compounds that have many structural purposes and are used in many processes within the
cell are called ____________________.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
23.
Which macromolecule is shown?
 View Figure 1 (if not visible)
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
24.
Which macromolecule is shown?
 View Figure 2 (if not visible)
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
25.
Which macromolecule is shown?
 View Figure 3 (if not visible)
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
26.
Which macromolecule is shown?
 View Figure 4 (if not visible)
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
27.
What type of macromolecule are enzymes?
a)
Protein
b)
Carbohydrate
c)
Lipid
d)
Nucleic Acid
28.
Which of the following organic compounds is the main source of energy for living things?
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
proteins
29.
Carbohydrates are made of... 
a)
C H O
b)
C H O N
c)
C H O N P
d)
C H O N S
30.
Lipids are made of... 
a)
C H O
b)
C H O N
c)
C H O N P
d)
C H O N S
31.
Proteins are made of... 
a)
C H O
b)
C H O N
c)
C H O N P
d)
C H O N S
32.
Which macromolecule stores energy, insulates us, and makes up the cell membrane?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
33.
Which macromolecule is made of simple and complex sugars?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
34.

Monomer is to Macrocolecule like ___ is to ____

a)

Building is to Bricks.

b)

Brick is to Building.

c)

Carpenter is to Building.

d)

Building is to Carpenter.

35.
What type of macromolecule is being represented in this image? 
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
36.

What is the building block of a lipid?

a)

monosaccharide

b)

nucleic acid

c)

fatty acid (trigylceride)

d)

amino acid

37.
Which macromolecule is this?
a)
carbohydrates
b)
lipids
c)
proteins
d)
nucleic acids
38.

Which organelle allows plants to support heavy structures such as leaves and flowers?

a)

cell membrane

b)

chloroplast

c)

golgi apparatus

d)

vacuole

39.

Which type of reproduction requires 2 parent cells combining to create a new cell (offspring)?

a)

sexual

b)

asexual

40.

Which type of reproduction only requires one parent?

a)

sexual

b)

asexual

41.

Identify the type of asexual reproduction shown in the image.

a)

vegetative propogation

b)

cloning

c)

binary fision

d)

budding

42.

Type of reproduction that requires the most time to happen.

a)

Asexual

b)

Sexual

c)

Bilingual

d)

Monopolistic

43.

Which type of reproduction takes the shortest amount of time?

a)

Asexual

b)

Sexual

c)

Monopolistic

d)

Bilingual

44.

Which type of reproduction requires two parents?

a)

Asexual

b)

Sexual

c)

Linguistic

d)

Monopoly

45.

Which type of reproduction causes bacteria of a species to have the exact same DNA as each other?

a)

asexual

b)

sexual

c)

monopolistic

d)

linguistic

46.

Which type of reproduction causes members of a species to look different from each other?

a)

asexual

b)

sexual

c)

monopolistic

d)

linguistic

47.

molecule in which opposite ends have opposite electric charges

a)

cohesion

b)

nonpolar molecule

c)

solution

d)

polar molecule

48.

Opposite electrically charged areas _______________.

a)

repel each other

b)

attract each other

49.
In the phospholipid, the polar head is considered what type of structure?
a)
hydrophobic
b)
insoluble
c)
hydrophilic
50.
Lipids do not dissolve in water because they are _______________
a)
polar
b)
water soluble
c)
non-polar
51.
Lipids differ from most other larger biomolecules in that they
a)
Are hydrophillic
b)
Are hydrophobic
c)
Do not have specific shapes
d)
Do not contain carbon
52.
What type of carbohydrate is this?
a)
polysaccharide
b)
disaccharide
c)
monosaccharide
d)
it isn't a carbohydrate
53.

Large molecules made up of small monomers are called

a)

polymers

b)

peptides

c)

peptones

d)

monomers

54.
Starch is a polymer formed from 
a)
fatty acids. 
b)
monosaccharides.
c)
amino acids.
d)
nucleotides.
55.
Why is water so good at sticking to other molecules and itself?
a)
It's sticky.
b)
It's polar.
c)
It's perfectly balanced.
d)
It's a solvent.
56.
Where is energy stored in a molecule?
a)
bonds
b)
molecules
c)
the sun
d)
atoms
57.

Which bond is present between two amino acids?

a)

Glycosidic Bond

b)

Phosphodiester bond

c)

Ester Bond

d)

Peptide Bond

58.

Which of the following describes the composition of cell membranes?

a)

Cell membranes are composed of carbohydrate chains, which allow all materials to enter and leave the cell.

b)

Cell membranes are composed of cellulose, which provide rigidity for the cell.

c)

Cell membranes are composed of cytoplasm, which allows proteins to be excreted by the cell.

d)

Cell membranes are composed of lipid molecules, which provide a flexible, insoluble structure.

59.
Bacteria is what kind of cell?
a)
Eukaryotic
b)
Prokaryotic
60.
What is unicellular? 
a)
one cell 
b)
many cells 
c)
no nuclues 
d)
DNA 
61.
What is multicellular? 
a)
one cell 
b)
no cells 
c)
many cells 
d)
no nucleus 
62.
What type of cell has a nucleus? 
a)
eukaryotic
b)
prokaryotic 
63.
What type of cell does not have a nucleus?
a)
eukaryotic 
b)
prokaryotic 
64.
Plants and animal cells are examples of ___ cells 
a)
prokaryotic cells 
b)
eukaryotic cells 
65.

Which is true of prokaryotic and eukaryotic cells?

a)

Prokaryotic cells are larger than eukaryotic cells.

b)

Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.

c)

Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.

d)

Eukaryotic cells are simpler than prokaryotic cells.

66.

Water has a high heat capacity, so it:

a)

warms quickly

b)

cools quickly

c)

cools slowly

67.
Water droplets take a spherical shape (as pictured) because of ____________
a)
adhesion
b)
cohesion
c)
capillary action
d)
solubility
68.
What enables a water strider to stand on the water?
a)
Adhesion
b)
Cohesion
c)
Surface Tension
d)
None of the above
69.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
70.
The attraction that causes water and other liquids to form drops on thin films (like wax paper) is called ________________. This is also water’s ability to be attracted to other water molecules.
a)
adhesion
b)
capillary action
c)
cohesion
d)
surface tension
71.
Which characteristic of water will allow a paperclip to remain floating on water when the paperclip is gently placed on top of the water?
a)
adhesion
b)
surface tension
c)
solvent properties
d)
nonpolar
72.
The property where water can pull itself up tubes or through spaces in paper or fabrics.
a)
adhesion
b)
capillary action
c)
cohesion
d)
universal solvent
73.
What type of mixture separates upon standing?
a)
Solution
b)
Alloy
c)
Colloid
d)
Suspension
74.
Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?
a)
A solution
b)
A colloid
c)
A suspension
d)
A compound
75.
Particles are spread throughout a fluid but are too large to stay mixed w/o being stirred or shaken.
a)
suspension
b)
colloid
c)
solution

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