Practical: Investigating the Rate of Respiration Respirometers are used to measure and investigate the?rate of oxygen consumption?during aerobic respiration in organisms The experiments usually inv...
Oxidative Phosphorylation Oxidative phosphorylation?is the last stage of aerobic respiration It takes place at the?inner mitochondrial membrane It results in the?production of many molecules of ATP...
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 The enzymes and coe...
Glycolysis Glycolysis is the first stage of respiration It does not require oxygen to take place and is therefore the first step for both aerobic and anaerobic respiration Glucose is only?partially...
Stages of Respiration Glucose is?broken down in stages, each of which consists of a series of chemical reactions These chemical reactions are controlled by?intracellular enzymes?that catalyses reac...
Respiration: An Overview Glucose?is the main respiratory substrate used by cells Aerobic respiration is the process of breaking down a respiratory substrate in order to?produce ATP using oxygen The...
Sliding Filament Theory Structure of thick & thin filaments in a myofibril The?thick filaments?within a myofibril are made up of?myosin molecules These are?fibrous protein molecules?with a?glob...
Muscle Fibres: Structure Skeletal muscle?makes up the muscles in the body that are attached to the skeleton Skeletal muscle is made up of?muscle fibres A muscle fibre is a?highly specialised?cell-l...
Movement of the Skeleton The?effective movement?of the human body requires both?muscle?and an?incompressible skeleton This is because muscles will only produce effective movement if they?pull on a ...
