Under certain circumstances rigor mortis can be used to determine time of death
ID: 3506363 • Letter: U
Question
Under certain circumstances rigor mortis can be used to determine time of death rigor mortis occur? SELECT ANY ACCURATE STATEMENTS. Because sodium leaks out of a muscle cell Because proteins (actin and myosin) are being broken down in muscle cells Because all muscle cells are dead and/or decomposed Because nervous tissue has started to decompose and can not silence muscle Because no ATP is available to release attached actin and myosin molecules Save Question 9 (1 point) During vigorous workouts, many people complain of "feeling the burn." Although t primary due to high K levels around muscles, many people once believed that pyru broken down into substance caused the muscle ache associated with "feeling the burn." when insufficient oxygen is available during exercise and Lactic acidExplanation / Answer
Answer
1) Rigor mortis occur because :
No ATP is available to release attached actin and myosin molecules.
- After contraction ATP is used to conclude the contraction and dettach actin myosim cros bridge, but there is no ATP available after death and hence, the muscle become stiff and rigid.
Option E
2) During vigorous workouts, when there is insuffient oxygen available anaerobic respiration takes place.
- In this pyruvic acid is converted to lactic acid. This conversion proces is called lactic acid fermentation. When the execise persist for longer duration with high intesity of physical activity, it causes the muscle to "burn"
Option A ) Lactic acid
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