C_S_D 4430 Lecture Notes - Lecture 2: Exocytosis, Citric Acid Cycle, Blastomere
Document Summary
The brain is a major consumer of glucose and oxygen. Adenosine triphosphate (atp) primary energy source for most cell functions. Glucose (from food) is broken down through an anaerobic process into pyruvate. Pyruvate is broken down through an aerobic process. This is the primary reason why our brains require so much oxygenated blood. Much more atp is produced through this final stage. Axoplasmic transport: transportation of proteins (building blocks of cells) within a neuron. Rates of transport slow transport used for relocation of structural proteins (1 mm per day) fast transport. Carrying materials out to the cell membrane, needed for active processes in the neuron (opposed to structural) (400 mm per day) A vesicle transported down to the cell membrane, picking up clathirn and exposed to calcium, creates a reaction causing the vesicle to fuse with the cell membrane, resulting in the vesicle spilling contents into the extracellular fluid.
