Required Practical: Investigating the Effect on the Rate of Respiration A redox indicator is a substance that changes colour when it is reduced or oxidised DCPIP and methylene blue are redox...
Anaerobic Respiration Sometimes cells experience conditions with little or no oxygen There are several consequences when there is not enough oxygen available for respiration: There is no fin...
Aerobic Respiration: Oxidative Phosphorylation & ATP Synthesis Oxidative phosphorylation is the last stage of aerobic respiration It takes place at the inner mitochondrial membrane It re...
Aerobic Respiration: Role of NAD and FAD Coenzymes NAD and FAD play a critical role in aerobic respiration When hydrogen atoms become available at different points during respiration NAD and FAD ac...
The Krebs Cycle The Krebs cycle (sometimes called the citric acid cycle) consists of a series of enzyme-controlled reactions 2 carbon (2C) Acetyl CoA enters the circular pathway from the lin...
Entering the Link Reaction The end product of glycolysis is pyruvate Pyruvate contains a substantial amount of chemical energy that can be further utilised in respiration to produce more ATP...
Aerobic Respiration: Glycolysis Glycolysis is the first stage of respiration It takes place in the cytoplasm of the cell and involves: Trapping glucose in the cell by phosphorylating the mol...
The Four Stages in Aerobic Respiration Glucose is the main respiratory substrate used by cells Aerobic respiration is the process of breaking down a respiratory substrate in order to produce...
Apparatus & Techniques: Investigating the Rate of Photosynthesis Investigations to determine the effects of light intensity, carbon dioxide concentration and temperature on the rate of p...
