Muscles Blank______.Multiple choice question.use ATP only under oxidative conditionsuse hemoglobin to store oxygenare structurally similar throughout the bodyare composed of slow and fast fibers
Question
Muscles Blank______.Multiple choice question.use ATP only under oxidative conditionsuse hemoglobin to store oxygenare structurally similar throughout the bodyare composed of slow and fast fibers
Solution
The correct answer is: "are composed of slow and fast fibers".
Here's why:
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"Use ATP only under oxidative conditions" - This is incorrect. Muscles use ATP under both aerobic (oxidative) and anaerobic conditions.
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"Use hemoglobin to store oxygen" - This is incorrect. Muscles use myoglobin, not hemoglobin, to store oxygen.
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"Are structurally similar throughout the body" - This is incorrect. Different types of muscles (skeletal, cardiac, smooth) have different structures.
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"Are composed of slow and fast fibers" - This is correct. Skeletal muscles are composed of both slow-twitch (type I) and fast-twitch (type II) fibers.
Similar Questions
The protein located in muscle cells that delivers oxygen directly to the mitochondria is Blank______.Multiple choice question.myosinmyoglobinhemoglobinATP
Which molecule is stored in muscle fibers and can supply quick energy for ATP synthesis?Multiple choice question.MyosinMyoglobinCreatine phosphateAcetylcholine
Which of the following statements concerning slow-twitch oxidative muscle fibers is false?Multiple ChoiceThey split ATP slowly.They have large deposits of myoglobin.They have low glycogen stores.They have a well-developed blood supply.They are well adapted to anaerobic activity.
A skeletal muscle fiber is Blank______ a skeletal muscle cell.Multiple choice question.the same asdifferent from
Select all that applySlow twitch or Type I muscle fibers Blank______. Multiple select question.respond rapidly to nervous stimulationhave high aerobic capacity but low anaerobic capacityhave a fast form of myosin ATPase, which allows them to break down ATP more rapidly than other muscle fiber typeshave the highest resistance to muscle fatiguehave well developed blood supplies
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