ADP‚ Pi‚ and NAD+ is finite (limited). What happens to cellular respiration when all of the cell’s NAD+ has been converted to NADH? If NAD is unavailable‚ the cell is unable to conduct any processes that involve the conversion of NAD+ to NADH. Because both glycolysis and the Krebs cycle produce NADH‚ both of these processes shut down when there is no available NAD+. 5. If the Krebs cycle does not require oxygen‚ why does cellular respiration stop after glycolysis when no oxygen is present? When
Premium Adenosine triphosphate Cellular respiration Metabolism
a stable system in which the products are made when they are needed in the exact amount. An enzyme lowers the activation energy of a reaction so its easier to proceed. Enzymes are specific to which substrates it binds with to the active site.(AS biology‚ 2008). There is a lock and key hypothesis‚ as shown in diagram 1: (http://www.skinnersbiology.co.uk/enzyme.htm) the aim of this practical is to determine the activation energy of hydrolysis of
Premium Enzyme Chemical reaction Catalysis
The starting material for this lab was the dialyzed sample (stored at -20ᵒ C) from the previous lab. The CM sephadex resin (taken in a 50 mL tube) was already made swollen using Buffer C (20 mM HEPES‚ pH 7.9; 1 mM EDTA; 50 mM KCl). The dialyzed sample was thawed to the room temperature and gently poured over the resin. The tube was capped and kept on a rocker at room temperature for 1 hour. The tube was then centrifuged in a HS-4 rotor at 2500 rpm (1200g) for 5 minutes at 4ᵒ C. Supernatant was discarded
Premium Laboratory glassware Laboratory equipment Chemistry
1.Explain the process of Cellular Respiration in order. Where does each step occur in a cell‚ which steps require oxygen‚ and how many ATP are produced in each step? Cellular respiration is the breakdown of glucose in the presence of oxygen to yield ATP. Glycolysis is the first stage in the breakdown of glucose and It occurs in the cell’s cytoplasm. It does not require oxygen (anaerobic). This step also occurs in two steps‚ the energy investment step‚ and the energy yielding step. This process yields
Premium Adenosine triphosphate Cellular respiration Citric acid cycle
Lab Report #1 Photosynthesis Lab Report: The Effects of Varying Concentrations of CO2 on the rate of Photosynthesis in Spinach Leaves Introduction Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct. The purpose of this experiment is to see how different concentrations of carbon
Premium Photosynthesis Oxygen Carbon dioxide
BIO 111 Cell and Molecular Biology Lab Lab Report Grading Rubric - Yeast Respiration This is a 20-points assignment. It is graded out of 100 points‚ and then scaled down to 20. The report must be logical throughout and rationales must be explained well. Reminder: - A Graph MUST be shown; furthermore‚ you MUST add either a Table or a Figure. - 2 pages of text only (maximum). Tables‚ Graphs and Figures should be on separate‚ additional pages‚ without limits on the number of additional
Premium Carbon dioxide Yeast Ethanol
The results of the food coloring exercise are seen in Figure 1 of the group report. The red food coloring displayed the highest percent transmittance in the long wavelengths closest to red light‚ which was expected. With the same logic‚ it was expected that the blue food coloring would have the highest percent transmittance in
Premium Light Chemistry Electromagnetic radiation
Transport Chain Mitochondrial stuff occurs only if O2 is present Anaerobic Also called Lactic acid fermentation Products are lactic acid + 0 ATP Redox NAD+ NADH Oxidized molecule education products C6H12O6+6O26CO2+6H20+ATP Cellular Respiration Glycolysis in cytoplasm STEPS (Glucose being substrate‚ substrate level phosphorylation occurs) Phosphorylation addition of phosphate 6 carbon glucose one phosphate added rearranged to fructose added second phosphate fructose
Premium Adenosine triphosphate Cellular respiration Metabolism
Cellular respiration‚ which synthesis ATP‚ begins with glycolysis‚ wherein a six-carbon glucose is broken down into two three-carbon molecules called pyruvate. This process requires the input of two ATPs to produce two pyruvates‚ two NADHs‚ and 4 ATPs. The NADHs are synthesised when NAD+‚ delivered by B vitamins‚ become bound to hydrogen and energised electrons1. Following glycolysis is the Krebs cycle and electron transport chain respectively. The Krebs cycle uses the two pyruvates produced in glycolysis
Premium Adenosine triphosphate Cellular respiration Metabolism
Tyler Cowan Professor Foltz Biology 181 April 8th 2015 Lab Report: Respiration Abstract: The objective of this lab was to figure out which has a higher cell respiration rate between crayfish and elodea. In order to figure this out we first set up three beakers to represent our control‚ elodea and crayfish and filled them with 75mL of culture solution which were dechlorinated making the solution acidic. We then had to place both the elodea and the crayfish in separate beakers filled with 25mL of
Premium Oxygen Carbon dioxide Cellular respiration