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Unit 2 Exam Practice

Total questions: 87

Worksheet time: 1hrs 27mins

Name
Class
Date
1.
What kind of transport does not require energy?
a)
Active 
b)
Vacuole 
c)
Passive 
d)

Molecular pump

2.
What is something that prokaryotic and eukaryotic cells have in common?
a)
They have a nucleus. 
b)
They are multi-cellular. 
c)
They have DNA. 
d)
They have organelles that are membrane-bound.
3.
What is facilitated diffusion?
a)
Transport that uses proteins to help move molecules across the membrane. 
b)
Movements of substances through a membrane. 
c)
When molecules spread from High to Low concentration on their own. 
d)
When pressure pushes something through a membrane. 
4.
All of the following statements are true about prokaryotic cells EXCEPT 
a)
No nucleus 
b)
They are simple and small 
c)
Have a cell wall 
d)
Have organelles 
5.
What are the 2 parts of a phospholipid? 
a)
Hydrophobic head, hydrophilic tails 
b)
Hydrophobic heads, hydrophobic tails 
c)
Hydrophilic heads, hydrophobic tails 
d)
Hydrophilic heads, hydrophilic tails 
6.
What is an isotonic solution?
a)
When solutions are in equilibrium 
b)

When the solution outside the cell has more solute 

c)

When the solution outside the cell has less solute 

d)

When the solution outside the cell has a greater pressure 

7.

What macromolecule is A?

a)

phospholipid

b)

carbohydrate

c)

protein

d)

nucleic acid

8.
Which means of particle transport is shown in this diagram?
a)
endocytosis
b)
exocytosis
c)
facilitated diffusion
d)
protein pump
9.
In this situation, where the solute is illustrated by red dots, predict if will WATER move into or out of the cell, and how that will affect the cell.
a)
Water will move into the cell and the cell will expand.
b)
Water will move into the cell and the cell will shrink.
c)
Water will move out of the cell and the cell will expand.
d)
Water will move out of the cell and the cell will shrink.
10.
Which illustration of transport across the membrane requires energy?
a)
A
b)
B
c)
C
d)
D
11.
Hydrophilic means...
a)
water-loving
b)
water-fearing
c)
nonpolar
d)
lipid soluble
12.

What organelle of the cell produces energy in the form of ATP?

a)
Mitochondria 
b)
Golgi Body 
c)

Chloroplast

d)
Vacuole 
13.

This is what controls what goes into and out of the cell (helps maintain homeostasis). It is made of lipids and ALL CELLS have this.

a)

Plasma Membrane

b)

Cell Wall

c)

Lysosomes

d)

Vacuole

14.

This structure provides protection and structure to ALL plant cells & SOME prokaryotes. Animal cells DO NOT have this.

a)

Plasma Membrane

b)

Cell Wall

c)

Golgi Apparatus

d)

Ribosomes

15.

This is the structure found in most prokaryotes, and very few eukaryotes that helps the cell move.

a)

DNA

b)

Flagella

c)

Cytoplasm

d)

Endoplasmic Reticulum

16.

This is the "genetic material" that is inside of cells.

a)

DNA

b)

Ribosomes

c)

Lysosomes

d)

Vacuole

17.

This is the gel-like fluid that fills up all the space in the cell that is not occupied by other organelles. All cells have this.

a)

Ribosomes

b)

Nucleus

c)

Cytoplasm

d)

DNA

18.

This is an organelle that is present in all cells, it is where proteins are synthesized(made).

a)

Plasma Membrane

b)

Ribosomes

c)

Vesicle

d)

Mitochondria

19.

This organelle is inside of the nucleus and is where ribosomes are made

a)

DNA

b)

Nucleolus

c)

Cytoplasm

d)

Lysosome

20.

I am an organelle that holds the DNA. I am also considered the control center. If I am a prokaryotic cell I don't have one.

a)

Ribosomes

b)

Plasma Membrane

c)

Nucleus

d)

Vesicle

21.

This is the organelle where energy is created in the form of ATP. Also known as the powerhouse of the cell.

a)

Lysosomes

b)

Nucleus

c)

Chloroplasts

d)

Mitochondria

22.

This organelle is only present in plant cells, it helps by capturing sunlight in order to perform photosynthesis.

a)

Mitochondria

b)

Chloroplasts

c)

Cell Wall

d)

Lysosomes

23.

This is only present in plant cells and some prokaryotic cells. It helps the cell keep its shape.

a)

Plasma Membrane

b)

Cell Wall

c)

Nucleus

d)

Nucleus

24.

This organelle is where material goes to in order to be packaged into a vesicle so that it can leave the cell.

a)

Endoplasmic Reticulum

b)

Nucleus

c)

Golgi Apparatus (Body)

d)

Mitochondria

25.

This is the organelle "package" that transports the material from the golgi apparatus to the outside of the cell.

a)

Vacuole

b)

Vesicle

c)

Ribosomes

d)

Chloroplasts

26.

Both prokaryotic & eukaryotic cells have all 4 of these!

a)

Cytoplasm, Ribosomes, Mitochondria, Vacuole

b)

DNA, Cytoplasm, Chloroplasts, Plasma Membrane

c)

Ribosomes, DNA, Nucleus, Cytoplasm

d)

Plasma Membrane, Ribosomes, DNA, Cytoplasm

27.

Which of the following contains a nucleus?

a)

eukaryotes

b)

bacteria

c)

organelles

d)

prokaryotes

28.

Which of the following is a function of the nucleus?

a)

Controls most of the cell's processes

b)

Contains the information needed to make proteins

c)

Stores DNA

d)

All of the answers are a function of the nucleus

29.

Which of the following is a function of the cell membrane?

a)

breaks down lipids, carbohydrates, and proteins from foods

b)

regulates which materials enter and leave the cell

c)

stores water, salt, proteins, and carbohydrates

d)

keeps the cell wall in place

30.

A(an) ________ is an example of a prokaryotic cell.

a)

animal cell

b)

virus

c)

bacteria

d)

plant cell

31.

A cell moves particles using energy against the concentration (low to high concentration) gradient by

a)

active transport

b)

passive transport

c)

facilitated diffusion

d)

osmosis

32.

If a cell is placed in salt water, water leaves the cell by

a)

diffusion.

b)

osmosis.

c)

active transport.

d)

exocytosis.

33.

Which of the following is NOT a form of passive transport?

a)

Osmosis

b)

Active Transport

c)

Diffusion

d)

Facilitated Diffusion

34.

The diffusion of water across a selectively permeable membrane is called...

a)

osmosis.

b)

active transport.

c)

osmotic pressure.

d)

facilitated diffusion.

35.

Diffusion is the movement of particle from

a)

an area of equilibrium to an area of high concentration.

b)

an area of low concentration to an area of high concentration.

c)

an area of high concentration to an area of low concentration.

d)

all of the answers describe what occurs in diffusion.

36.

Type of cell transport that does not require energy is called

a)

Active Transport

b)

Exocytosis

c)

Endocytosis

d)

Passive Transport

37.
In which case would a cell most likely shrink?
a)
when placed in a solution containing a high salt concentration
b)
when placed in a isotonic solution
c)
when placed in a solution containing a low pH
d)
when placed in a solution containing distilled water
38.

Active transport across a cell membrane from low to high concentration, requires

a)

energy (ATP)

b)

no energy

c)

water

d)

oxygen

39.

Which type of passive transport uses proteins to help molecules pass through the membrane?

a)
Diffusion
b)
Facilitated diffusion
c)
Osmosis
d)
All of the above
40.

Cell membranes are described as selectively permeable.

Four students were asked to explain what this means. Which one is correct?

a)

Student 1: Cell membranes prevent all materials from entering the cell.

b)

Student 2: Cell membranes only provide structural support for the cell.

c)

Student 3: Cell membranes regulate which substances can enter and exit the cell.

d)

Student 4: Cell membranes allow water and water-soluble substances to enter the cell.

41.
What is diffusion?
a)
when molecules move from a low concentration to a high concentration 
b)
when molecules move from a high concentration to a low concentration.
c)
no movement 
d)
molecules move everywhere
42.

A general term for the various types of active transport that move particles into a cell by enclosing them in a vesicle made out of plasma membrane.

a)

Endocytosis

b)

Exocytosis

c)

Osmosis

d)

Diffusion

43.

A form of bulk transport in which materials are transported from the inside to the outside of the cell in membrane-bound vesicles that fuse with the plasma membrane.

a)

Endocytosis

b)

Exocytosis

c)

Osmosis

d)

Diffusion

44.
What type of transport is this?
a)
Endocytosis
b)
Exocytosis
c)
Diffusion
d)
Sodium-Potassium Pump
45.
The cell below is in a _________ solution.
a)
Hypotonic
b)
Hypertonic
c)
Isotonic
46.

The cell below is in a _____________ solution.

a)

Hypertonic

b)

Hypotonic

c)

Isotonic

47.
The function of the plasma membrane is....
a)
to regulate what enters and leaves the cell.
b)
fight bacteria and viruses that enter the cell.
c)
provide rigid support and protection to the cell.
d)
make sure each cell can move
48.
Maintaining a constant internal state in a changing environment.
a)
Homeostasis
b)
Active Transport
c)
Mitosis
d)
Photosynthesis
49.
A ______________ is composed of a phosphate and glycerol head and 2 fatty acid chain tails. 
a)
phospholipid 
b)
Carbohydrate
c)
Cholesterol 
d)
Protein 
50.
How many layers thick is the lipid bilayer?
a)
1
b)
2
c)
3
d)
4
51.

The basic unit of living things is called

a)

nucleus

b)

organism

c)

lysosome

d)

cell

52.

What type of cell is this?

a)

Animal cell because it has chloroplast, a cell wall, and only one large vacuole.

b)

Plant cell because it has mitochondria and a nucleus.

c)

Animal cell because it has chloroplast, and a cell membrane.

d)

Plant cell because it has chloroplast, a cell wall, and only one large vacuole.

53.
Every living organism is made up of one or more cells
a)
True
b)
False
54.
During interphase the cell ___________.
a)
divides into two cells
b)
divides its nucleus
c)
replicates its DNA
d)
replicates the organelles within the cell
55.
Replication is when __________.
a)
the cell makes a copy of its DNA in nucleus 
b)
the cell forms 2 identical cells
c)
the cell produces 2 sets of organelles
d)
the cell continues to complete the same function
56.
After interphase is completed the cell moves into the next stage of the cell cycle called _________.
a)
anaphase
b)
cytokinesis
c)
metaphase
d)
mitosis
57.
Mitosis is made up of how many phases?
a)
4
b)
5
c)
6
d)
7
58.
What is the  two daughter strands of replicated chromatin that are condensed into two rod shaped structures and connected by a centromere called?
a)
DNA
b)
chromatin
c)
chromatid
d)
chromosome
59.
What is one half or one rod of the condensed chromatin called?
a)
DNA
b)
chromatin
c)
chromatid
d)
chromosome
60.
The following describes __________ during mitosis. The chromatin condenses and spindle fibers form at each side of the cell. The nuclear membrane breaks apart.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
61.
The following describes ________  during mitosis. The chromosomes line up along the center of the cell and the spindle fibers attach to each chromosome at the centromere.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
62.
The following describes _________ during mitosis. The spindle fiber splits the centromere and the chromatids move to opposite sides of the cell.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
63.
What is the correct term for "form during prophase of mitosis and attach to chromosomes at the centromere to pull them apart during cell division"?
a)
centriole
b)
nucleus
c)
spindle fibers
d)
cytokinesis
64.

The following describes _________ during mitosis. Two new nuclei form, chromosomes are no longer visible, and the spindle fibers disappear.

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

65.

The cell spends most of it's life in...

a)

interphase

b)

G2

c)

cytokinesis

d)

metaphase

66.

Last stage of the cell cycle in which the cytoplasm divides to form two identical cells.

a)

interphase

b)

cytokinesis

c)

prophase

d)

telophase

67.
A process where one cell forms two identical daughter cells is called...
a)
cell cycle
b)
cell division (mitosis)
c)
interphase
d)
cytokinesis
68.
What phase of mitosis is occuring in the picture?
a)
Prophase
b)
Metaphase
c)
Cytokinesis
d)
Telophase
69.
What phase of mitosis is pictured?
a)
Metaphase
b)
Telophase
c)
Prophase
d)
Anaphase
70.
Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?
a)
In order for genetic information to be transferred into daughter cells.
b)
In order for the cell to be able to increase in size.
c)
In order for the DNA to be contained in the nucleus.
d)
In order for the cell to re-order the DNA sequencing in the new cells.
71.
Which of the following is NOT occuring during interphase?
a)
Cell growth
b)
DNA being copied
c)
DNA condensing
d)
Two new cells are made
72.

What are the "X" shaped things in the drawing.

a)

PMATs

b)

Chromosomes

c)

Ribosomes

d)

Telophase

73.

What is the next phase of mitosis?

a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
74.

During what phase of Mitosis do the chromosomes line up in the Middle

a)

Metaphase

b)

Prophase

c)

Telophase

d)

Anaphase

75.

In which phase of Mitosis do the Chromosomes pull Apart

a)

Metaphase

b)

Prophase

c)

Anaphase

d)

Telophase

76.
DNA is replicated during the ______ phase of the cell cycle.
a)
G1
b)
Synthesis
c)
G2
d)
G0
77.
Before cells can divide, what must be copied?
a)
mitochondria
b)
cytoplasm
c)
DNA
d)
Cell Wall
78.
What do the cells look like at the end of mitosis?
a)
different from original cell
b)
similar to the original cell
c)
identical to the original cell
d)
none of these
79.

In this phase of mitosis, DNA condenses into chromosomes, nucleus breaks down, and spindle fibers form

a)

metaphase

b)

prophase

c)

anaphase

d)

interphase

80.

What is the purpose of the cell cycle?

a)

Growth of an organism and Repair of damaged tissue

b)

To help the body get rid of extra cells

c)

To increase the amount of classwork you have to do

d)

To get rid of the nucleus

81.

A benign tumor differs from a malignant tumor in that a benign tumor

a)

is cancerous

b)

spreads from the original site

c)

does not metastisize

d)

never causes health problems

82.

Cancer is defined as the

a)

uncontrolled division of mutated cells

b)

normal division of cells

c)

normal DNA replication

d)

abnormal ATP synthesis

83.

A ________________is a critical point where stop and go signals can regulate the cycle

a)

tumor

b)

checkpoint

c)

growth factor

d)

oncogene

84.

Which type of tumor is worrisome!?

a)

malignant

b)

benign

c)

biopsy

d)

cyclic

85.

Any substance that is known to cause cancer is called a

a)

Pathogen

b)

Biopsy

c)

Carcinogen

d)

Retrovirus

86.

A non-cancerous tumor is

a)

Malignant

b)

Metastatic

c)

Benign

d)

Malign

87.

Cell programmed self destruction is called

a)

Atopic

b)

Apoptosis

c)

Abi-normal

d)

Anticellular

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