wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Unit 4 Review

Total questions: 21

Worksheet time: 29mins

Name
Class
Date
1.
A signal molecule that binds to a plasma-membrane protein is a
a)
ligand
b)
second messenger
c)
protein kinase
d)
receptor protein
2.
What do second messengers do?
a)
transport a signal through the lipid bilayer
b)
relay a signal from the outside to the inside of the cell
c)
relay message from the inside of the mebrane throughout the cytoplasm
d)
dampen the message
3.
Signal amplification is most often achieved by
a)
an enzyme cascade
b)
binding of multiple signals
c)
branching pathways
d)
action of adenylyl cyclase
4.
Which is not a part of a signal transduction pathway?
a)
response
b)
transcription
c)
transduction
d)
receptor
5.
Which of the following is characterized by a cell releasing a signal molecule into the environment, followed by a number of cells in the immediate vicinity responding?
a)
paracrine signaling
b)
endocrine signaling
c)
long distance signaling
d)
hormonal signaling
6.
Positive feedback differs from negative feedback in that
a)
positive feedback systems have control centers that are lacking in negative feedback systems.
b)
the positive feedback's effector responses are in the same direction as the inititiating stimulus producing an intensified response.
c)
positive feedback benefits the organism, whereas negative feedback is detrimental.
d)
the effector's response increases some parameter,such as body temperature, whereas in negative feedback it can only decrease the parameter.
7.
Each of the following numbered processes are involved in signal transduction pathways:  
 I.  Response  
II.  Amplification  
 III.  Reception  
IV.  Transduction
 Which of the following represents the sequence of events in a typical signal transduction pathway?
a)
I, II, III, IV
b)
III, I, IV, II
c)
II, IV, I, III
d)
III, IV, II, I
8.
This is an example of
a)
paracrine signaling
b)
synaptic signaling
c)
long-distance signaling
d)
all of the above
9.

What is being depicted in the image?

a)

Amplification of the signal molecule

b)

Enzymatic proteins inhibiting process of the signal transduction pathway

c)

Kinase groups adding dimer groups to other enzymes

d)

Diffusion of molecules within the cell due to the signaling molecule

10.
Maintaining body temperature is an example of a:
a)
negative feedback loop
b)
positive feedback loop
11.
When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. 
a)
Positive Feedback Response
b)
Negative Feedback Loop 
12.
Negative Feedback Loops:
a)
amplify processes
b)
prevent small changes from getting larger
c)
are initiated during childbirth
d)
are found only in plants
13.
As you get dehydrated, your blood becomes thicker and harder to pump. Your kidneys will respond by stopping urine production, sending the water from urine into your bloodstream to thin your blood back to normal level.
a)
Positive Feedback Response
b)
Negative Feedback Loop 
14.

An example of a positive feedback loop is ____________.

a)

Childbirth

b)

Blood Pressure regulation

c)

Body Temperature regulation

d)

All of the above

15.

Which of the following is an example of positive feedback?

a)

Blood-clotting

b)

Child-birth

c)

Insulin Production

d)

Menstruation

16.
Why do cells go through cell division
a)
Growth
b)
Reproduction
c)
Repair
d)
All of the above
17.
Which of the following is not a part of interphase?
a)
G2
b)
M
c)
G1
d)
S
18.
The phase of mitosis in which the sister chromatids separate from each other
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
19.

What is cancer?

a)

A group of diseases characterized by no cell growth

b)

A group of diseases caused by the failure of chromosomes to separate

c)

A group of diseases characterized by uncontrolled cell division

d)

A group of diseases caused by excessive replication of chromosomes

20.

Long distance signaling in animals is called what?

a)

paracrine

b)

endocrine

c)

hormone

d)

gap junctions

21.

Cells can communicate with one another via:

a)

chemical messengers

b)

hormones

c)

gap junctions

d)

all of these

Similar Resources on Wayground

Unit 4 test review

20 questions

Unit 4 test review

quiz

Worksheet

•

8th - 12th Grade

BIO310 Lymphatic System

20 questions

BIO310 Lymphatic System

quiz

Worksheet

•

12th Grade - University

The Wolf Quizz

20 questions

The Wolf Quizz

quiz

Worksheet

•

5th Grade - University

GB1-LT3

20 questions

GB1-LT3

quiz

Worksheet

•

12th Grade

Ekskresi

20 questions

Ekskresi

quiz

Worksheet

•

11th Grade

Kingdoms review

20 questions

Kingdoms review

quiz

Worksheet

•

9th - 12th Grade

Phrehistoric creatures of the past

16 questions

Phrehistoric creatures of the past

quiz

Worksheet

•

3rd Grade - University

Zombis en la Naturaleza

17 questions

Zombis en la Naturaleza

quiz

Worksheet

•

6th - 11th Grade