Bio Lab 3 Lab Report 7 Cellular Respiration
A lab report covering experiments related to cellular respiration and metabolic processes.
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Lab Report - Page 1
© Access Learning Systems
BioLab3
Lab Report 7
Cellular Respiration Lab Report
I. The ATP Cycle
Complete the chart below:
Letter Defining Term
A Energy from food (input)
B atp
C Energy for cells (output)
D adp
II. Anaerobic Respiration
EXERCISE 1 – Alcoholic fermentation
At intervals of 20, 40, and 60 minutes, the tubes are removed. Record the volume of gas produced in
each fermentation tube. Each tube is graduated in tenths of a milliliter. (HINT: Look at the amount of
gas, not the level of the liquid.)
Tube Solution Gas Volume in ml after:
20 min. 40 min. 60 min.
1 10% glucose + yeast 1.4 3.5 5
2 1% starch + yeast 0 .5 .5
3 1% starch + yeast + amylase .5 1.5 2.5
• What gas accumulated in the calibrated portion of the fermentation tube?
Hydrogen and carbon
• What metabolic pathway is utilized by yeast cells?
Anaerobic because fermintation took place without oxygen
• Why was amylase added to the third test tube?
Because amylayse enzyme catalyzes the reaction in starch that breaks down to glucose
• Did respiration occur in the beaker containing yeast and starch? Why?
No, because yeast need amylase to break starch down
III. Aerobic Respiration
© Access Learning Systems
BioLab3
Lab Report 7
Cellular Respiration Lab Report
I. The ATP Cycle
Complete the chart below:
Letter Defining Term
A Energy from food (input)
B atp
C Energy for cells (output)
D adp
II. Anaerobic Respiration
EXERCISE 1 – Alcoholic fermentation
At intervals of 20, 40, and 60 minutes, the tubes are removed. Record the volume of gas produced in
each fermentation tube. Each tube is graduated in tenths of a milliliter. (HINT: Look at the amount of
gas, not the level of the liquid.)
Tube Solution Gas Volume in ml after:
20 min. 40 min. 60 min.
1 10% glucose + yeast 1.4 3.5 5
2 1% starch + yeast 0 .5 .5
3 1% starch + yeast + amylase .5 1.5 2.5
• What gas accumulated in the calibrated portion of the fermentation tube?
Hydrogen and carbon
• What metabolic pathway is utilized by yeast cells?
Anaerobic because fermintation took place without oxygen
• Why was amylase added to the third test tube?
Because amylayse enzyme catalyzes the reaction in starch that breaks down to glucose
• Did respiration occur in the beaker containing yeast and starch? Why?
No, because yeast need amylase to break starch down
III. Aerobic Respiration
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Subject
Biology