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If muscle contractions use ATP at or below the maximum rate of ATP generation by mitochondria the muscle fiber will what?
If muscle contractions use ATP at or below the maximum rate of ATP generation by mitochondria, the muscle fiber will be able to sustain the contraction for a longer period without fatigue, as the ATP production can meet the energy demands of the muscle activity.
How fast does a muscle contract?
The fastest a muscle fiber can contract is 0.01 seconds or less. However, this is not necessarily the speed that the actual muscle contracts at. For example, the human eyelid can only blink in 0.15 seconds.
What are all muscle cells called?
A single muscle cell is called a muscle fiber.
What are fatigue resistant fibers?
slow fiber
How are ATp levels affected by muscle fatigue?
There has been no universal mechanism found to explain skeletal muscle fatigue. With the onset of intense exercise, muscle force has been shown to fall, which is often illustrated as a sign of fatigue. As ATP supplies the immediate energy to the muscle cell, the relationship between ATP and fatigue has been a topic of interest among researchers. During muscle contraction the majority of ATP is used for cross bridge cycling, ion pumps and transporters, and chemical signalling cascades. A fall in [ATP] would result in the development of rigor and goes against the viability of the cell. It is proposed that whole muscle [ATP] does not fall with repeated contraction, though there may be differences in [ATP] between fiber types with fatigue. Rather, fatigue is a protective mechanism by the muscle to preserve [ATP] accomplished by down regulating cellular processes that use ATP for energy
Each muscle fiber is also called a?
Each muscle fiber is also called a myofiber.
What is the Smaller fiber in a muscle fiber?
Myofibril
Exercise can do what?
make more muscle fiber
Name four factors that influence contractile force and two that influence velocity and duration of contraction?
The four factors that influence contractile force are the number of muscle fibers stimulated, the relative size of the fibers, the frequency of stimulation and the degree of muscle stretch. Factors that influence the velocity and duration of contraction are the muscle fiber type, load and recruitment.
What is the basic unit of muscle?
muscle fiber
What is a single muscle called?
a muscle fiber
What type yogurt grows mold the fastest?
the fastest is fiber yogurt.
