The pressure due to C02 might cancel out any change due to the consumption of oxygen. The non-germinating peas consumed far less oxygen than the germinating peas.
The seals on the respirators may not have been completely air-tight.
I just sprinkle on some water as I am rolling them up. Cellular respiration is an ATP-producing catabolic process in which the electron receiver is an inorganic molecule.
There does not seem to be any pattern. The result was a decrease in gas volume within the tube, and a related decrease in pressure in the tube. This is because the mammal maintains a constant temperature that is higher than the temperature of the cold blooded reptiles that will have a temperature of 10 C.
You may need to rotate the pipet in order to take readings, but once you have them submerged and situated, limit movement as this will affect your results. Again data is pooled.
With warm temperatures be sure to disregard the first few bubbles as they are just expanding air.
If your water bath is in a dark plastic bin, place white paper towels at the bottom to make it easier to read the pipet. Read the pipet as the water bubble moves down the tube toward the respirometers. Glucose may be oxidized completely if an adequate amount of oxygen is present.
Describe and explain the relationship between the amount of oxygen consumed and time. It is my personal favorite. After two days in the towels, it is easy to see which seeds are starting to grow hypocotyls—I instruct the students to pick out some nice vigorous ones, and we usually have good results.
Tell us what you need to have done now! Any warm place will do. Materials Materials are necessary for the lab: Using the glass beads to correct for environmental differences in pressure Using wallpaper troughs put foil on the bottom if visualizing the bubble is a problemwe have pretty flawless results although we almost always pick a day when the barometric pressure is changing.
Changes in atmospheric pressure could have caused changes in respiration rate and correcting the readings provided the most accurate results under the given conditions.Conclusion: The lab demonstrated many important things relating to cellular respiration.
It showed that the rates of cellular respiration are greater in germinating peas than in non-germinating peas. It also showed that temperature and respiration rates are directly proportional; as temperature increases, respiration rates increase as well/5(3).
AP Biology Lab 5 - Cellular Respiration Paul Andersen explains how a respirometer can be used to measure the respiration rate in peas, germinating peas and the worm. KOH is used to solidify CO2 produced by a respiring organism. Lab 5 Cellular Respiration Introduction Cellular respiration is the procedure of changing the chemical energy of organic molecules into a type that can be used by organisms.
Glucose may be oxidized completely if an adequate amount of oxygen is present. Cellular respiration (aerobic respiration) (2 points) Fermentation (anaerobic respiration) (2 points) Summarize what occurs during the three steps of cellular respiration and indicate where each process takes place in the cell.
Nov 23, · Cell Respiration AP Lab (few questions) MY ANSWERS INCLUDED!
THANKS!? Hey, first off this is my FIRST question!
Pretty kool, huh! OK, so I did my complete AP Bio. Lab 5 BUT I really want an A so can u check my answers? Yes, I actually showed my answers.
I got my data. Status: Resolved. Cell Respiration.
by Theresa Knapp Holtzclaw. Introduction. Cellular respiration occurs in most cells of both plants and animals. It takes place in the mitochondria, where energy from nutrients converts ADP to ATP. ATP is used for all cellular activities that require energy.Download