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During a race how do your muscles produce ATP after the store of ATP in muscles is used?
muscle cells produce ATP by cellular respiration through fermentation
During rapid exercise how do your muscles produce ATP?
Fueled by the metabolism of sugar, the ATP byproducts (ADP) are reconstituted into ATP molecules. Use of ATP energy requires no oxygen - when the ATP is depleted the muscle cells must use cellular respiration to obtain energy and once the muscle is at rest the ATP stores are replenished.
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.
What organelle would be most common in a muscle cell?
Mitochondria - to produce the ATP needed for muscle contraction
How can a skeletal muscle produce additional ATP when there is not enough oxygen?
Anaerobic fermentation enables a cell to produce ATP in the absence of oxygen but the ATP yield is very limited and the process produces a toxic end product, lactic acid, which is a major factor in muscle fatigue.
Slow-twitch muscle fibers have many mitochondria and produce ATP using?
aerobic respiration
Why do muscles contain many mioochondria?
Muscles need ATP to contract. Mitochondria produce most of the ATP in the cell, so there are lots of mitochondria in muscle.
Muscle cells use a lot of energy. Therefore what must they contain a lot of?
Mitochondria that produce ATP.
Does muscle relaxation does not require ATP?
Both muscle relaxation and muscle contraction require ATP.
What is phosphogen?
The Phosphogen SystemSkeletal muscle uses large amounts of ATP during active contraction. Skeletal muscle can produce limited amounts of ATP from the breakdown of stored phosphocreatine. As ATP is used and ATP levels decrease, phosphocreatine is used to make ATP from ADP. When the cell is resting and ATP levels increase due to aerobic glucose catabolism, phosphocreatine is produced from ATP and creatine. This mechanism can produce 1 ATP for every molecule of phosphocreatine present. Muscle cells normally have enough phosphocreatine to produce ATP for several minutes at rest but only 10-15 seconds during exercise.
Sustained muscle activity may consume ATP faster than aerobic respiration can produce it in such circumstances ATP can be made by combining ADP with phosphate groups borrowed from?
phophocreatine
What is the probable effect on ATP production of a low-calorie diet?
Your body will use other sorce of fuel ( muscle, fat) so it will still produce the same amount of ATP
