Worksheetsthe cell
Total questions: 26
Worksheet time: 13mins
Name
Class
Date
1.
Which of the following is NOT related to cell-to-cell communication?
a)
contact inhibition
b)
Quorum sensing
c)
Cyclic-AMP
d)
countercurrent exchange
2.
Which of the following is NOT a receptor on the surface of a cell?
a)
Ion-channel receptor
b)
Cyclic-AMP
c)
G-protein-coupled receptor
d)
Protein kinase receptor
3.
Which of the following is correct about signal transduction pathways?
a)
In the signal transduction pathway, a single molecule can stimulate the release of thousands of molecules of product within a cell.
b)
Signal transduction pathways are found only in the cells of the most complex animals.
c)
Signal transduction pathways have evolved recently along with the development of enlarged brain size in mammals.
d)
Signal transduction pathways are unique in that receptors that stimulate the pathway are only located on the surface of a plasma membrane.
4.
Membranes are components of all the following EXCEPT a
a)
nucleus
b)
Golgi apparatus
c)
mitochondrion
d)
microtubule
5.
Which of the following best characterizes the structure of the plasma membrane?
a)
fluid but unorganized
b)
rigid and unchanging
c)
very active
d)
rigid but varying from cell to cell
6.
Which of the following initiates a single transduction pathway that leads to a response in a cell?
a)
Cyclic AMP is formed in the cytoplasm
b)
A kinase transfers a phosphate group from ATP to another molecule inside the cell.
c)
A transmembrane receptor changes receptor changes its conformation
d)
an ion channel opens
7.
Which organelle contains dna
a)
lysosomes
b)
ribosomes
c)
golgi body
d)
mitochondria
8.
Which of the following is correct about protein kinase receptors?
a)
They allow for the passage of ions such as Na+ ions though the plasma membrane of a cell.
b)
They belong to a class of plasma membrane receptors that exhibit enzyme activity
c)
They bind to steroid messengers on the surface of a cell.
d)
They activate G-protein in the cytoplasm of the cell.
9.
contains hydrolytic enzymes
a)
mitochondria
b)
microtubules
c)
lysosomes
d)
outer membrane
10.
Smooth E.R. carries out all of the following activities EXCEPT
a)
connects rough E.R. to the Golgi
b)
produces RNA
c)
detoxification
d)
lipid production
11.
Which one of the following would NOT normally diffuse through the lipid bilayer of a plasma membrane?
a)
starch
b)
water
c)
amino acid
d)
co2
12.
All of the following cellular activities require ATP EXCEPT
a)
sodium-potassium pump
b)
cells absorbing oxygen
c)
amoeboid movement
d)
receptor-mediated endocytosis
13.
present in a prokaryote cell
a)
ribosomes
b)
mitochondria
c)
ER
d)
chloroplasts
14.
requires ATP
a)
uptake of cholesterol by a cell
b)
facilitated diffusion of glucose into a cell
c)
countercurrent exchange
d)
diffusion of oxygen into a fish's gills
15.
produces proteins
a)
smooth ER
b)
golgi apparatus
c)
rough ER
d)
ribosomes
16.
directly assists with cell division
a)
chromosomes
b)
golgi apparatus
c)
plasmolysis
d)
microtubules
17.
not normally found in a plant cell
a)
mitochondria
b)
centrioles
c)
plastids
d)
ER
18.
packages and secretes subsatnces
a)
golgi appparatus
b)
rough ER
c)
ribosomes
d)
proteins involved in transport
19.
An animal cell in a hypertonic solution would
a)
swell
b)
swell and exhibit turgor
c)
exhibit plasmolysis
d)
shrink and then swell
20.
role of cyclic AMP
a)
It acts as a second messenger for signaling molecules that cannot pass through the cell membrane
b)
it assists in the activation of the tyrosine kinase receptor
c)
it activates the G protein coupled receptor
d)
it has an allosteric receptor in an ion channel receptor
21.
Which of the following is correct about chemical signals that bind to receptors located on the cell membrane, rather than receptors in the cytoplasm?
a)
They are hydrophobic
b)
nitric oxide is one example
c)
they require a second messenger
d)
they are oil soluble
22.
produces ATP
a)
nucleus
b)
mitochondria
c)
ribosomes
d)
microtubules
23.
cytoplasmic channels between plants
a)
desmosomes
b)
plasmodesmata
c)
middle lamellae
d)
tight junctions
24.
size of a human red blood cell
a)
0.01 micrometer
b)
8 micrometers
c)
8 nanometers
d)
80 micrometers
25.
Which of the following is correct about receptors that are located in the cytoplasm?
a)
the bind to hydrophilic substances
b)
they require a second messenger
c)
they bind to a signal molecule in the cytoplasm which causes a response in the nucleus
d)
one example is the ion channel receptor
26.
which of the following most accurately describes the advantage of a signal transduction pathway?
a)
the binding of the signaling molecule causes the receptor protein to change its conformation
b)
transduction can occur in a cascade effect
c)
the binding of the signaling molecule with the receptor can happen either on the surface of the cell or in he cytoplasm
d)
One binding molecule can trigger the release of thousands of molecules
100 %
