Cellular Respiration Lab Report
The purpose of this lab was to find out which substance, molasses, sucrose, or the items of choice. This experiment was done to help the students understand which substance the yeast could perform cellular respiration in and why it could depending on it’s structure and bonds. From this experiment students should be able to better understand cellular respiration and why it occurs, like how it happens and how the organism benefits from cellular respiration. Also it should be understood what substances cellular respiration occurs on more easily and which substances take longer, and why that is because of what they are composed of.
For this experiment there were two substances to be brought in and experimented with, substances that were tried were pure honey and water.
1). 50 ml of pure honey will produce 10 cm of carbon dioxide.
2). 25 ml of pure ...view middle of the document...
Glycolysis- It occurs in the cytoplasm, in the process of glycolysis, glucose is broken down into 2 ATP.
2). Kreb’s Cycle- It occurs in the mitochondria, the Co2 is created in this step, and one ATP is created as a result of Kreb’s Cycle.
3). Electron Transport Chain- It occurs in the mitochondria but the in inner membrane, This step creates 34-36 ATP.
The process of cellular respiration is performed to provide energy to the body and other organisms. The energy that is created is in the form of ATP and we need this ATP as a source of energy for us to function and perform tasks such as walking, talking, and thinking which get the energy through cellular respiration.In cellular respiration the cell needs oxygen and food, these substances are required to perform this task because the food consumed is used for the bonds and the oxygen is then used to break those bonds. after that has been done the bi-product of carbon dioxide is exhaled as a waste material for the process of cellular respiration.
In cellular respiration some things that can affect the process are the temperature in can speed up the process if the temperature is increased the respiration rate increases as well. Unlike when the temperature rises, the opposite occurs when the temperature drops, the respiration rate decreases. Another factor that can affect cellular respiration is the oxygen levels, when there isn’t enough present the bonds can not be broken and cellular respiration can not occur. Also there must be a sufficient amount of a food source and the type of food source also can limit the respiration rate. If there is not enough food then the cell could not perform aerobic cellular respiration for a long duration of time. The type of food source can affect the rate as well if the substance is high in sugars then the respiration will happen more easily, where if the cell was trying to perform cellular respiration on carbohydrates whose bonds are harder to break.
Yeast in water
Graduated cylinder 100 mL
10 Large test tubes
10 Small test tubes
1 Rubber stopper
Pen / pencil
Test tube rack