When does insulin-induced transports translocation take place? Only during phases of no
exercise. Exercise lowers the concentration of insulin in the blood which reduces its friction in
glucose transport.
Mitochondria Cell components that have an important role in providing energy for the cells
and they are the only sites that oxygen is used.
Mitochondria are not present in which kind of cells? Red blood cells
Where are the proteins of the electron transport chain located? The inner membrane
Where are the enzymes involved in the Krebs cycle and fat oxidation found? The matrix of a
mitochondria
What do catabolic reactions do? They convert biochemical energy from organic molecules
into ATP
Cell Respiration The controlled release of energy in the form of ATP
When is energy released in an ATP molecule Whenever it is combined with water an ATP
loses the last phosphate group from the chain. The separation releases large amounts of
energy.
Phosphorylation ATP can be synthesized by adding a phosphate group to the compound
ADP
WHat does the ATP molecule do? It connects anabolic and catabolic reactions.
, When energy is stored in the body as glycogen or fat, how is the energy put to use? The
energy has to be transported to ATP first. Chemical energy in the form of ATP can be used to
drive reactions and processes in the body which require energy.
What is ATP often referred as? The energy currency of the cell.
How do muscle fibers produce ATP? By using carbohydrates and fats
What happens when the muscle fiber is stimulated to contract by the nervous system? The
contractile protein molecules within it use ATP to provide the chemical energy to drive the
contraction process.
How much ATP is available in muscle? enough to allow two seconds of muscular activity
Where does ATP come from? It comes from a range of biochemical pathways within the
muscle cell itself called the energy systems.
Creatine Phosphate High energy chemical compound
What can creatine phosphate not do? It can not be used directly to drive muscle
contraction.
Chemical energy reaction to synthesize ATP Creatine phosphate + ADP + H = Creatine + ATP
When is creatine phosphate used during exercise The beginning