Homework Answers
Answer : A . Type 1
Explanation : Type 1 is a type of highly resistance to fatigue and injury and having Slow oxidation rate
characteristics of Type 1 muscle fibre is
Small neurone size
Low force production
Slow contraction speed
Red in colour
High in myoglobin
High in mitochondria
High resistance to fatigue
Thanks dear student
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160. Which type of muscle fiber is highly resistant to fatigue and injury? A. O Type...
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8. Which muscle is adapted to be highly resistant to fatigue? a) Cardiac b) Striped c) Unstriped d) Voluntary 9. S pongy bone is ound in the interior of both the ends and long a) parts obones b) restricted to the long parts of bones c) transitional between the ends and long parts of bones d) restricted to the ends of bones
10) When a muscle fiber enters fatigue, which metabolite below typically does NOT significantly change in...
10) When a muscle fiber enters fatigue, which metabolite below typically does NOT significantly change in concentration? A) ATP B) P G Ca2+ D) Lactic acid E) K* 11) Which is the most accurate definition of a motor unit? A) The mimimum number of muscle fibers required to move a load B) The number of crossbridges formed in a given length of muscle fiber C) The number of muscles innervated by a single nerve D) One motor neuron and all...
please help me with questions 10 and 11 Question 10 Select all of the properties of...
please help me with questions 10 and 11
Question 10 Select all of the properties of fast-twitch glycolytic skeletal muscle fibers. (Select 3) High myoglobin content Skeletal fiber type fastest to fatigue Weakest skeletal fiber type Strongest skeletal fiber type High glycogen content Skeletal fiber type most resistant to fatigue High capillary density D Question 11 Which event below directly uses the energy released when ATP is hydrolyzed? Myosin binds to actin DHP pulls on RYR Myosin becomes activated Myosin...
127. Exercises which include sprinting and weightlifting utilize which type of fiber? A Fast twitch B....
127. Exercises which include sprinting and weightlifting utilize which type of fiber? A Fast twitch B. Slow twitch c. Type 1 D. Type A
all 3? Which statement about muscle contractions is false? O An action potential in the muscle...
all 3?
Which statement about muscle contractions is false? O An action potential in the muscle cell activates contraction by releasing Car within the muscle. O A single action potential at the neuromuscular junction is sufficient to cause a muscle to twitch. O Summation of twitches leads to a graded increase in the tension that can be generated by a single muscle fiber. The tension generated by a muscle can be varied by controlling how many of its motor units...
4. Unfortunately, we cannot change the type of muscle fibers we are born with, but we...
4. Unfortunately, we cannot change the type of muscle fibers we are born with, but we can still train all of the fibers we do have! Since most of us aren't superstar athletes, we can benefit from a good exercise routine that contains a bit of both types of exercise. o For those that naturally have more slow twitch fibers, which type of exercise suits them best? Why? o Which type of exercise suits people that naturally have more fast...
3. Muscles respond to strength training with hypertrophy. Hypertrophy occurs by a) increasing the number of...
3. Muscles respond to strength training with hypertrophy. Hypertrophy occurs by a) increasing the number of muscle fibers in the skeletal muscle. b) increasing the diameter of each fiber by adding more myofibrils. c) adding more mitochondria and myoglobin to each fiber. 4. Endurance training (such as training to run a 10k race) aims to increase the % of ATP generated from aerobic respiration during times of intense exercise. Which fiber type is primarily recruited for this type of endurance...
A Fibers represented by X would be classified as _____ and would have relatively high _____....
A Fibers represented by X would be classified as _____ and would
have relatively high _____.
a) fast twitch, oxidative capacity
b) fast twitch, glycolytic capacity
c) slow twitch, oxidative capacity
d) slow twitch, glycolytic capacity
B Fibers represented by X would likely contain _____ and are
most likely from a motor unit within the ______. Group of answer
choices
a) type I myosin heavy chain, deep part of a gastrocnemius
muscle
b) type IIA myosin heavy chain, soleus muscle...
Flag question "All or none" applies to Select one: a. individual muscle fibers O b. muscle...
Flag question "All or none" applies to Select one: a. individual muscle fibers O b. muscle bundles Clear my choice Which of the following fibers would you expect to find in higher concentration in the postural muscles? Select one: O a. fast twitch O b. slow twitch Which of the following describes skeletal muscle relaxation? Select one: O a. Ca+2 transported into SR O b. action potential causes release of neurotransmitter O C. ATP required O d. Ca+2 binds to...
Check your understanding of muscle fiber recruitment by reading the following scenario and then answering the...
Check your understanding of muscle fiber recruitment by reading the following scenario and then answering the questions. Check your answers when you've finished. Scott is a swimmer on the university swim team. Before each competition, he spends some time walking around the pool area, getting psyched up for the event. He swings his arms a little shakes his legs, and just generally tries to loosen up. Soon he's in position on the starting block, waiting for the sound of the...
8. Which muscle is adapted to be highly resistant to fatigue? a) Cardiac b) Striped c) Unstriped d) Voluntary 9. S pongy bone is ound in the interior of both the ends and long a) parts obones b) restricted to the long parts of bones c) transitional between the ends and long parts of bones d) restricted to the ends of bones
10) When a muscle fiber enters fatigue, which metabolite below typically does NOT significantly change in concentration? A) ATP B) P G Ca2+ D) Lactic acid E) K* 11) Which is the most accurate definition of a motor unit? A) The mimimum number of muscle fibers required to move a load B) The number of crossbridges formed in a given length of muscle fiber C) The number of muscles innervated by a single nerve D) One motor neuron and all...
please help me with questions 10 and 11
Question 10 Select all of the properties of fast-twitch glycolytic skeletal muscle fibers. (Select 3) High myoglobin content Skeletal fiber type fastest to fatigue Weakest skeletal fiber type Strongest skeletal fiber type High glycogen content Skeletal fiber type most resistant to fatigue High capillary density D Question 11 Which event below directly uses the energy released when ATP is hydrolyzed? Myosin binds to actin DHP pulls on RYR Myosin becomes activated Myosin...
127. Exercises which include sprinting and weightlifting utilize which type of fiber? A Fast twitch B. Slow twitch c. Type 1 D. Type A
all 3?
Which statement about muscle contractions is false? O An action potential in the muscle cell activates contraction by releasing Car within the muscle. O A single action potential at the neuromuscular junction is sufficient to cause a muscle to twitch. O Summation of twitches leads to a graded increase in the tension that can be generated by a single muscle fiber. The tension generated by a muscle can be varied by controlling how many of its motor units...
4. Unfortunately, we cannot change the type of muscle fibers we are born with, but we can still train all of the fibers we do have! Since most of us aren't superstar athletes, we can benefit from a good exercise routine that contains a bit of both types of exercise. o For those that naturally have more slow twitch fibers, which type of exercise suits them best? Why? o Which type of exercise suits people that naturally have more fast...
3. Muscles respond to strength training with hypertrophy. Hypertrophy occurs by a) increasing the number of muscle fibers in the skeletal muscle. b) increasing the diameter of each fiber by adding more myofibrils. c) adding more mitochondria and myoglobin to each fiber. 4. Endurance training (such as training to run a 10k race) aims to increase the % of ATP generated from aerobic respiration during times of intense exercise. Which fiber type is primarily recruited for this type of endurance...
A Fibers represented by X would be classified as _____ and would
have relatively high _____.
a) fast twitch, oxidative capacity
b) fast twitch, glycolytic capacity
c) slow twitch, oxidative capacity
d) slow twitch, glycolytic capacity
B Fibers represented by X would likely contain _____ and are
most likely from a motor unit within the ______. Group of answer
choices
a) type I myosin heavy chain, deep part of a gastrocnemius
muscle
b) type IIA myosin heavy chain, soleus muscle...
Flag question "All or none" applies to Select one: a. individual muscle fibers O b. muscle bundles Clear my choice Which of the following fibers would you expect to find in higher concentration in the postural muscles? Select one: O a. fast twitch O b. slow twitch Which of the following describes skeletal muscle relaxation? Select one: O a. Ca+2 transported into SR O b. action potential causes release of neurotransmitter O C. ATP required O d. Ca+2 binds to...
Check your understanding of muscle fiber recruitment by reading the following scenario and then answering the questions. Check your answers when you've finished. Scott is a swimmer on the university swim team. Before each competition, he spends some time walking around the pool area, getting psyched up for the event. He swings his arms a little shakes his legs, and just generally tries to loosen up. Soon he's in position on the starting block, waiting for the sound of the...
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