BIO 112 Study Guide - Midterm Guide: Heart Valve, Gas Exchange, Pulmonary Vein
Document Summary
Muscle (from muscle metabolism to end of chapter. What is happening during the 3 stages of a twitch/ what is tetanus & wave summary: a muscle twitch is a single contraction of skeletal muscle. The three distinct phases are latent, contraction, and relaxation: latent phase: is the interval from the stimulus application until the muscle begins to contract (shorten). Wave summation occurs because muscles that are rapidly stimulated are not able to relax between repeated stimulations. What are the 3 metabolic routes a muscle cell can take for atp: glycolysis, anaerobic respiration, aerobic respiration, glycolysis: second fastest way to resynthesize atp, and energy lasts from 30 seconds to. Blood sugar or muscle glycogen is broken down to form pyruvate. It then converts into lactate, or acetyl coenzyme a which then enters mitochondria for further. Atp production: anaerobic metabolism is the creation of energy through the combustion of carbohydrates in the absence of oxygen.
