CELLULAR RESPIRATION
JRAE79
lab_report_-_wk_11__respiration1_3.docxCellular Respiration
Hands-on labs, inc. Version 42-0040-00-01
LAB REPORT
PHOTOS – Include the digital photos as attachments or place them right into your report.
Photo #1 - Take a photo which is a CLOSE UP of the seeds AFTER they have germinated, while still in the petri dish.
Photo #2 – Take a photo of your experimental set up with the two tubes in the glass, AT THE END. Get close enough that the results show in both tubes. Set up your tubes side by side on the same side of the glass so this can be done. You may need to put BLACK PAPER or a dark background behind the glass, to reduce glare.
|
Data Table 1: Oxygen Consumption Measured by Change in Water Level |
||||
|
|
Starting Level of Water |
Water level: 30 min |
Water level: 1 hour |
Water level: 1 hour, 30 min |
|
Experiment |
|
|
|
|
|
Control |
|
|
|
|
Questions
A. Why use germinating seeds to detect cellular respiration?
B. Explain how the movement − or lack of movement − of the water in the respirometer is a reflection of cellular respiration.
Experiment
Cellular respiration
202
©Hands-On Labs, Inc.
www.LabPaq.com
C. What is the role of the NaOH-saturated ball of cotton in the respirometer? What would have
occurred if it were not in place?
D. In photosynthesis what is the reactant gas and what is the product gas?
In respiration what is the reactant gas and what is the product gas?
What is the elegant relationship between these gases and these two different processes?
Ex
p
e
ri
m
e
n
t
C
e
l
l
u
l
a
r
r
e
s
p
i
r
a
ti
o
n
20
2
©
H
a
nds
-
On
L
a
bs,
I
n
c
.
ww
w
.
L
a
b
P
a
q
.
c
o
m
Cellular
R
espi
r
a
tion
Hands
-
on
l
a
b
s,
inc.
V
e
r
sion
42
-
0040
-
00
-
01
LAB REPORT
PHOTOS
–
Include
the
digital photos
as attachments or place them right into your report.
Photo #1
-
Take a photo which is a CLOSE UP of the seeds AFTER they have germinated, while still
in the petri dish.
Photo #2
–
Take a photo of your experimental set up with the two tubes in the glass, AT THE END.
Get close enough that the results show in both tubes. Set up your tubes side by side on the same
side of the glass so this can be done. You may need to put BLACK PA
PER or a dark background
behind the glass, to reduce glare.
D
a
t
a
T
able 1:
O
x
y
g
en Consum
p
tion
Measu
r
ed
b
y Chan
g
e in
W
a
t
er L
e
v
el
S
t
arting
L
e
v
el of
W
a
t
er
W
a
t
er
l
e
v
el:
30
min
W
a
t
er
l
e
v
el:
1
hour
W
a
t
er
l
e
v
el:
1
hou
r
,
30
min
Experime
n
t
Co
n
t
r
ol
Questions
A
.
W
h
y use
g
ermin
a
ting
seeds
t
o d
e
t
ect cellular
r
espi
r
a
tion?
B.
Explain
h
o
w
the
m
o
v
eme
n
t
-
or
lack
of
m
o
v
eme
n
t
-
of
the
w
a
t
er
in
the
r
espi
r
om
e
t
er
is
a
r
e
flection
of cellular
r
espi
r
a
tion.
Experiment
Cellular respiration
20
2
©Hands-On Labs, Inc.
www.LabPaq.com
Cellular Respiration
Hands-on labs, inc. Version 42-0040-00-01
LAB REPORT
PHOTOS – Include the digital photos as attachments or place them right into your report.
Photo #1 - Take a photo which is a CLOSE UP of the seeds AFTER they have germinated, while still
in the petri dish.
Photo #2 – Take a photo of your experimental set up with the two tubes in the glass, AT THE END.
Get close enough that the results show in both tubes. Set up your tubes side by side on the same
side of the glass so this can be done. You may need to put BLACK PAPER or a dark background
behind the glass, to reduce glare.
Data Table 1: Oxygen Consumption Measured by Change in Water Level
Starting Level of
Water
Water level:
30 min
Water level:
1 hour
Water level:
1 hour, 30 min
Experiment
Control
Questions
A. Why use germinating seeds to detect cellular respiration?
B. Explain how the movement - or lack of movement - of the water in the respirometer is a
reflection of cellular respiration.
