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Study sets matching "muscle a metabolism"

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Study sets matching "muscle a metabolism"

28 terms
a&p muscle metabolism
how do muscles provide energy for cont…
stored atp....
phosphorylation of adp by creatine pho…
glycolysis...
stored atp, phosphorylation of adp by creatine phosphate, and…
muscles store only 4-6 seconds worth of atp and it must be ge…
is used while other metabolic pathways are adjusting to incre…
takes glucose and breaks into 2 pyruvic acid molecules. gluco…
how do muscles provide energy for cont…
stored atp, phosphorylation of adp by creatine phosphate, and…
stored atp....
muscles store only 4-6 seconds worth of atp and it must be ge…
54 terms
A AND P MUSCLE METABOLISM
anaerobic respiration
lactic acid
aerobic respiration
muscle contractions
this produces ATP in the abscence of oxygen, but its yield is…
end product of anaerobic respiration
this produces much more ATP, but require much oxygen
these require a tremendous amount of ATP, but supply of ATP i…
anaerobic respiration
this produces ATP in the abscence of oxygen, but its yield is…
lactic acid
end product of anaerobic respiration
25 terms
02 - A and P - Muscle Metabolism
Cross Bridge
Hydrolysis
Dehydration
ATP
During a muscle contraction, the ___ ___ binds to the thin fi…
The potential energy in ATP is released when the terminal hig…
___ synthesis. Process that combines two molecules into a lar…
3 roles of ___.... 1 Energize power stroke.... 2 Disconnecting myo…
Cross Bridge
During a muscle contraction, the ___ ___ binds to the thin fi…
Hydrolysis
The potential energy in ATP is released when the terminal hig…
9 terms
A&P Test Muscle Metabolism
Direct energy source for muscle work
ATP depends on
Glycogen
Carboloading
ATP
organic energy sources (glucose, glycogen, lipids) and oxygen…
is the glucose stored as starch in liver and muscles
is excess glucose stored in the liver as a large compound cal…
Direct energy source for muscle work
ATP
ATP depends on
organic energy sources (glucose, glycogen, lipids) and oxygen…
9 terms
Muscle Metabolism
Muscle Metabolism
Aerobic respiration
Anaerobic respiration
Creatine phosphate metabolism
chemical reactions a muscle cell uses to produce energy
use of O2 to make energy, approx 32ATP/glucose
lack to O2; produces lactic acid and 2 ATP/glucose
lacks O2, immediate energy, 1ATP
Muscle Metabolism
chemical reactions a muscle cell uses to produce energy
Aerobic respiration
use of O2 to make energy, approx 32ATP/glucose
14 terms
Muscle Metabolism
The ability to do work, 2 forms - kine…
Energy of motion, doing work; muscle c…
Energy of position, not doing work; co…
Energy in chemical bonds, potential en…
Energy (definition, forms, types)
Kinetic energy
Potential energy
Chemical energy
The ability to do work, 2 forms - kine…
Energy (definition, forms, types)
Energy of motion, doing work; muscle c…
Kinetic energy
32 terms
A&P Muscle System: Muscle Metabolism
ATP
Ox/Redox reactions
Ways to characterize metabolic systems
Immediate system
Donates 7.3 kcal when split in hydrolysis; uses phosphorylati…
Chemical reactions designed to harness energy of protons and…
Duration of ATP production; rate of ATP production; aerobic o…
Rapid accessibility of ATP and CrP from sarcoplasm; uses type…
ATP
Donates 7.3 kcal when split in hydrolysis; uses phosphorylati…
Ox/Redox reactions
Chemical reactions designed to harness energy of protons and…
21 terms
A/P- Muscles- Muscle Performance and Metabolism
All-or-Nothing response
Twitch
Strength of contraction in a muscle de…
Myogram
A single nerve impulse causes a small electrical impulse in t…
Small, brief contraction due to a single nerve impulse.
1. Frequency of nerve stimulation.... 2. Number of muscle cells…
Record of muscle contraction.... -Stimulus... -Latent period... -Contr…
All-or-Nothing response
A single nerve impulse causes a small electrical impulse in t…
Twitch
Small, brief contraction due to a single nerve impulse.
8 terms
a&p final- muscle fiber metabolism
Sources of atp
Creative phosphate
Glycolysis
Aerobic respiration
Free atp-very little... Creatine phospage ... Glycolysis(anaerobic…
Stores high energy phosphate groups from ATP passes phosphate…
(Anaerobic respiration) used during strenuous activities when…
oxygen required produces most ATP used in prolonged activit…
Sources of atp
Free atp-very little... Creatine phospage ... Glycolysis(anaerobic…
Creative phosphate
Stores high energy phosphate groups from ATP passes phosphate…
11 terms
A & P Exam 3 (Muscle Metabolism)
Direct Phosphorylation
Creatine Phosphate
No
1 ATP per Creatine Phosphate
Some ATP is stored in a resting muscle. As a contraction star…
What is the energy source for direct phosphorylation?
Does direct phosphorylation require oxygen?
What does direct phosphorylation produce?
Direct Phosphorylation
Some ATP is stored in a resting muscle. As a contraction star…
Creatine Phosphate
What is the energy source for direct phosphorylation?
28 terms
A and P Skeletal muscle mechanics and metabolism
ATPase
myoglobin
creatine phosphate
creatine kinase
enzyme that cleaves a phosphate from ATP to break it down to…
red colored protein that carries and stores oxygen in muscle…
-component of direct phosphorylation... -couples with ADP... -cell…
CP - ADP reaction catalyst
ATPase
enzyme that cleaves a phosphate from ATP to break it down to…
myoglobin
red colored protein that carries and stores oxygen in muscle…
A&P Test 4 Muscle Metabolism
Skeletal muscle can switch b/w what?
What is low activity?
What is high activity?
What is the only source used for contr…
low and high activity
relaxed; moderate use of ATP
contracting; rapid use of ATP
ATP
Skeletal muscle can switch b/w what?
low and high activity
What is low activity?
relaxed; moderate use of ATP
27 terms
A & P Exam II Skeletal Muscle Mechanics & Metabolism
motor unit
muscle tension
muscle twitch
Wave Summation (Frequency Simulus) : l…
a single motor neuron + the fibers it controls... small = less…
force exerted by contracting skeletal muscle on an object... mu…
motor units response to a single action potential from the mo…
low stimulation:... another stimulus applied before muscle relax…
motor unit
a single motor neuron + the fibers it controls... small = less…
muscle tension
force exerted by contracting skeletal muscle on an object... mu…
32 terms
Muscle Metabolism
4-6 worth
three phosphates, base of adenine, rib…
ATP
direct phosphorylation of ADP by Creat…
How much ATP do muscles store?
What is the structure of ATP?
What are the three processes used to synthesize ATP?
4-6 worth
How much ATP do muscles store?
three phosphates, base of adenine, rib…
What is the structure of ATP?
12 terms
Muscle Metabolism
Contration
muscle tension
load
isotonic contraction
active process of generating force within a muscle by cross b…
force exerted by a contracting muscle on some object
the weight , or reciprocal force by the object on the muscle
muscle shortens and moves load. tension in muscle and load re…
Contration
active process of generating force within a muscle by cross b…
muscle tension
force exerted by a contracting muscle on some object
11 terms
Chp 10 Muscle metabolism (A&P1)
What are the three ways muscle fibers…
Creatine phosphate?
Creatine?
What is the 1st source of energy when…
From Creatine phosphate, by anaerobic glycolysis and aerobic…
An energy rich molecule that is found in muscle fibers
A small amino acid like molecule that is synthesized in the l…
Creatine phosphate
What are the three ways muscle fibers…
From Creatine phosphate, by anaerobic glycolysis and aerobic…
Creatine phosphate?
An energy rich molecule that is found in muscle fibers
58 terms
A&P 5/1 - Muscle Metabolism
Byproducts of aerobic respiration
Chemical bonds are formed by
T/F: There is more than one source for…
Mechanisms of ATP Synthesis
water, carbon dioxide
Electrons
True
Substrate level phosphorylation, oxidative phosphorylation
Byproducts of aerobic respiration
water, carbon dioxide
Chemical bonds are formed by
Electrons
12 terms
Muscle Metabolism
catabolism
anabolism
enzymes with cofactors
coenzymes
sum of all chemical reactions in the body, energy releasing,…
energy producing and storage, synthesis reactions
inorganic ions (Fe, Cu, Zn, Mg, Ca), needed for enzymes to fu…
organic molecules, (B-vitamins) NAD+ and FAD, accept electron…
catabolism
sum of all chemical reactions in the body, energy releasing,…
anabolism
energy producing and storage, synthesis reactions
9 terms
Muscle Metabolism
Energy Transfer
Direct Phosphorylation
Anaerobic pathway
Aerobic cellular respiration
During exercise, muscles use energy produced by aerobic respi…
short quick spurts of energy, coupled reaction of creatine ph…
After dircect phosphorylation is used up... Energy source: gluco…
can supply muscle demand for hours after 40s, the respiratory…
Energy Transfer
During exercise, muscles use energy produced by aerobic respi…
Direct Phosphorylation
short quick spurts of energy, coupled reaction of creatine ph…
15 terms
muscle metabolism
ATP needed for contraction
immediate energy part 1
Phosphagen system
Fatigue
flex myosin head... complete power stroke... break cross bridge... rea…
first met by myoglobin
myokinase transferring from one ADP to another.
Progressive weakness and loss of contra tiling from prolonged…
ATP needed for contraction
flex myosin head... complete power stroke... break cross bridge... rea…
immediate energy part 1
first met by myoglobin
24 terms
Muscle metabolism
isotonic
isometric
3 ways to produce ATP
Creatine phospate (CP) or Phosphocreat…
the tension remains constant while the muscle shortens and th…
the muscle develops tension, but does not shorten and there i…
Creatine phospate (CP) or Phosphocreatine (PCr)... Anaerobic cel…
when relaxed, muscle fibers produce excess ATP and transfer a…
isotonic
the tension remains constant while the muscle shortens and th…
isometric
the muscle develops tension, but does not shorten and there i…
73 terms
Muscle Metabolism
ATP
ATP
Very Inefficient
Aerobic
muscle energy source
muscle contractions depend on this
only 2 ATP per glucose molecule
36 ATP per glucose molecule
ATP
muscle energy source
ATP
muscle contractions depend on this
7 terms
Muscle Metabolism
creatine phosphate (CP)
creatine kinase
anaerobic glycolysis
lactic acid
phosphorylates ADP. muscle stores 3-4 time more than ATP, rev…
enzyme that catalyzes cP-ADP reaction
does not require oxygen, 2ATP
glucose degrades to 2 pyruvic acid, then converted to:
creatine phosphate (CP)
phosphorylates ADP. muscle stores 3-4 time more than ATP, rev…
creatine kinase
enzyme that catalyzes cP-ADP reaction
54 terms
Muscle Metabolism
ATP
macronutrients and metabolic pathways
Metabolic Pathways
Ox/Redox Reactions
-Donates 7.3 kcal when its split apart via hydrolysis... -Accomp…
Generate sufficient energy to conduct work
Controlled by substrate and enzyme availability, the energy n…
Chemical reactions designed to harness the energy of protons…
ATP
-Donates 7.3 kcal when its split apart via hydrolysis... -Accomp…
macronutrients and metabolic pathways
Generate sufficient energy to conduct work
69 terms
A&P Block 2: Skeletal Muscle Mechanics & Metabolism
Axons traveling in groups are called...
There is/are _____ neuromuscular junct…
What is a motor unit made of?
______ transmit signals from the CNS t…
nerves
one
A single motor neuron + the fibers it controls
Motor neurons
Axons traveling in groups are called...
nerves
There is/are _____ neuromuscular junct…
one
11 terms
Muscle Metabolism
Creatine Phosphate
Muscle Fatigue
Contributing factors to muscle fatigue
Oxygen debt (recovery oxygen uptake)
stores energy, source of ATP production (donates a phosphate…
inability of muscle to sustain strength of contraction (usual…
build up of lactic acid, unable to make enough ATP (insuffici…
the added oxygen, over and above the normal, resting oxygen c…
Creatine Phosphate
stores energy, source of ATP production (donates a phosphate…
Muscle Fatigue
inability of muscle to sustain strength of contraction (usual…
9 terms
Muscle Metabolism
aerobic respiration
anaerobic fermentation
immediate energy
short-term energy
muscle energy with oxygen
muscle energy without oxygen
short quick burst. uses phosphagen system to supply ATP
muscle glycogen-lactic acid pathway for ATP (30-40 sec)
aerobic respiration
muscle energy with oxygen
anaerobic fermentation
muscle energy without oxygen
30 terms
Muscle Metabolism
List the three roles of ATP in muscle…
The potential energy in ATP is release…
Write the end products of this process…
Rebuilding ADP into ATP with a new sou…
Energizing power stroke of myosin cross bridge... Disconecting t…
Hydrolysis
ADP+P
dehydration synthesis
List the three roles of ATP in muscle…
Energizing power stroke of myosin cross bridge... Disconecting t…
The potential energy in ATP is release…
Hydrolysis
Muscle metabolism
-Glucose (from blood or muscles)... -2 p…
-Acetyl-CoA... -2atp, CO2 waste product... -…
-electron/hydrogen ions... -high energy…
Aerobic respiration
Glycolysis... -molecule that is used... -product of broken down mo…
Krebs cycle... -product used ... -product created... -generated to fu…
Electron transport Phosphorylation... -product used... -product cr…
Which metabolic patheay generates most ATP?
-Glucose (from blood or muscles)... -2 p…
Glycolysis... -molecule that is used... -product of broken down mo…
-Acetyl-CoA... -2atp, CO2 waste product... -…
Krebs cycle... -product used ... -product created... -generated to fu…
19 terms
Muscle Metabolism
What are the 2 major energy uses in ac…
Describe characteristics of type I slo…
Describe type II fast twitch skeletal…
Describe cardiac muscle
1) sarcomeric mosin motor activity (ATP for contraction)... 2) I…
1) predominately aerobic... 2) highly vascularized... 3) high mitoc…
1) Predominately anaerobic... 2) low vasculrization... 3) low mitoc…
1) very aerobic... 2) high vascularized... 3) high mitochondrial co…
What are the 2 major energy uses in ac…
1) sarcomeric mosin motor activity (ATP for contraction)... 2) I…
Describe characteristics of type I slo…
1) predominately aerobic... 2) highly vascularized... 3) high mitoc…
19 terms
Muscle Metabolism
Anaerobic Fermentation
Aerobic Respiration
Myokinase
Creatine Kinase
Enables cells to produce ATP in the absence of oxygen. Yields…
Produces far more ATP and less toxic end products (CO2, water…
Transfers phosphate from one ADP to another, converting it to…
Obtains phosphate from creatine phosphate (CP) and donates it…
Anaerobic Fermentation
Enables cells to produce ATP in the absence of oxygen. Yields…
Aerobic Respiration
Produces far more ATP and less toxic end products (CO2, water…
23 terms
Muscle Metabolism
Name the organic molecules used as fue…
Why is glucose converted to glucose-6-…
Define glycogenesis.
Define glycogenolysis.
glucose, fatty acids, lactic acid
prevents glucose from exiting cells... maintains concentration g…
makes glycogen (from glucose)
breaks down glycogen (into glucose)
Name the organic molecules used as fue…
glucose, fatty acids, lactic acid
Why is glucose converted to glucose-6-…
prevents glucose from exiting cells... maintains concentration g…
16 terms
muscle metabolism
redox reations
glycogenesis
lipogenesis
glycogenolysis
high energy electrons are removed from one substance and take…
anabolic process that occurs in the liver and skeletal muscle…
anabolic process that occurs in the liver in which energy fro…
catabolic process that occurs mainly in the liver in which en…
redox reations
high energy electrons are removed from one substance and take…
glycogenesis
anabolic process that occurs in the liver and skeletal muscle…
10 terms
Muscle Metabolism
Glycolysis
Phosphorylation
Cellular Respiration
Aerobic Respiration
Produces 2 ATP per glucose molecule
Provides enough ATP for 4-6 seconds of use
Occurs in the Mitochondria
Happening right now
Glycolysis
Produces 2 ATP per glucose molecule
Phosphorylation
Provides enough ATP for 4-6 seconds of use
14 terms
Muscle Metabolism
Anaerobic respiration
Aerobic respiration
How much ATP do muscle contractions re…
skeletal muscle fibers store..
produces ATP in absence of oxygen; yield is limited and lacti…
produces much more ATP, but requires plenty of oxygen
muscle contractions require a tremendous amount of ATP, but s…
2 to 3 times more creatine phosphate (CP) as ATP to produce e…
Anaerobic respiration
produces ATP in absence of oxygen; yield is limited and lacti…
Aerobic respiration
produces much more ATP, but requires plenty of oxygen
20 terms
Muscle Metabolism
ATP
4-6 seconds
ATP
Regenerates
Provides the energy for cross bridge movement nd detachment w…
The amount of time your muscles store very limited reserves o…
The only energy source for contractile activites
What does ATP do within a fraction of a second by three pathw…
ATP
Provides the energy for cross bridge movement nd detachment w…
4-6 seconds
The amount of time your muscles store very limited reserves o…
Muscle Metabolism
Stored ATP
Continuously
Creatine phosphate
Increased energy demands
How do muscles provide energy for contraction?
ATP must be generated
What is used in the phosphorylation of ADP?
Phosphorylation is used while other metabolic pathways are ad…
Stored ATP
How do muscles provide energy for contraction?
Continuously
ATP must be generated
Muscle Metabolism
Maximum shortening velocity
Enzymatic ATP synthesis
Glycolytic fibers
Oxidative fibers
quickness to which muscles can contract; depends on ATPase ac…
glycolytic or oxidative
muscle fibers that utilize glycogen synthase and creatine pho…
muscle fibers that utilize triglycerides for fuel; increase i…
Maximum shortening velocity
quickness to which muscles can contract; depends on ATPase ac…
Enzymatic ATP synthesis
glycolytic or oxidative
10 terms
Muscle Metabolism
Amount of oxygen liver cells require t…
Blood flow provides sufficient oxygen…
Glycolysis, leading to pyruvic acid fo…
36 ATP per glucose for skeletal muscle
Oxygen debt
Low to moderate intensity exercise:
Pathway used during low to moderate intensity exercise:
ATP production during low to moderate intensity exercise:
Amount of oxygen liver cells require t…
Oxygen debt
Blood flow provides sufficient oxygen…
Low to moderate intensity exercise:
9 terms
Muscle metabolism
Aerobic exercise
Resistance exercise
Rigor mortis
Isotonic contractions
Result in more efficient in muscle metablism greater enduranc…
Weight lifting isometric exercise
Muscles remain in a state of rigidity
Muscle changes in length and moves the load
Aerobic exercise
Result in more efficient in muscle metablism greater enduranc…
Resistance exercise
Weight lifting isometric exercise
42 terms
Muscle Metabolism
What does ATP do for the contraction o…
Muscles store a very limited amount of…
What are the three ways that ATP can b…
What happens to ATP during direct phos…
Provides the energy for contraction.
4-6 seconds
Direct phosphorylation of ADP by creatine phosphate... Anaerobic…
Creatine phosphate transfers ATP to ADP and the reaction is c…
What does ATP do for the contraction o…
Provides the energy for contraction.
Muscles store a very limited amount of…
4-6 seconds
9 terms
muscle metabolism
aerobic exercise
isotonic contraction
fast twitch fibers
resistance exercise
relies on oxygen
contraction occurs
fast moving, white, thick fibers
to contract against an external resistance with the expectati…
aerobic exercise
relies on oxygen
isotonic contraction
contraction occurs
42 terms
Muscle Metabolism
What does ATP do for the contraction o…
Muscles store a very limited amount of…
What are the three ways that ATP can b…
What happens to ATP during direct phos…
Provides the energy for contraction.
4-6 seconds
Direct phosphorylation of ADP by creatine phosphate... Anaerobic…
Creatine phosphate transfers ATP to ADP and the reaction is c…
What does ATP do for the contraction o…
Provides the energy for contraction.
Muscles store a very limited amount of…
4-6 seconds
9 terms
Muscle Metabolism
aerobic exercise
isotonic contraction
isometric contraction
rigor mortis
the use of oxygen
contraction that changes the length
increases or decreases the tension
calcium leaks from sr into sarcoplams, causes myosin to bind…
aerobic exercise
the use of oxygen
isotonic contraction
contraction that changes the length
49 terms
Muscle Metabolism
anaerobic fermentation
aerobic respiration
resting muscle
oxygen stored in myoglobin
__________ allows the cell to produce ATP in the absence of o…
__________ produces more ATP and less toxic end products, but…
In a __________, most ATP is generated by the aerobic respira…
Immediate energy such as that needed for a 100 m dash relies…
anaerobic fermentation
__________ allows the cell to produce ATP in the absence of o…
aerobic respiration
__________ produces more ATP and less toxic end products, but…
17 terms
Muscle Metabolism
muscle metabolism
direct phosphorylation of adp by creat…
creatine phosphate
creatine phosphate plus adp
ATP is the energy used for the formation of the cross bridges…
early in muscle activity the demand for ATP increases and sto…
a high energy molecule is utilized to immediately recharge ATP
yields creatine + ATP
muscle metabolism
ATP is the energy used for the formation of the cross bridges…
direct phosphorylation of adp by creat…
early in muscle activity the demand for ATP increases and sto…
27 terms
muscle metabolism
hydrolysis
binding phosphate to ADP
ATP roles during contraction
after muscle contraction
energy is released from ATP through ...
ATP is regenerated by ...
energize the myosin head, detach myosin and actin
ATP must be regenerated by bonding phosphate to ADP
hydrolysis
energy is released from ATP through ...
binding phosphate to ADP
ATP is regenerated by ...
9 terms
Muscle metabolism
Aerobic exercise
Resistance exercise
Rigor Morris
Isotonic contraction
Process of breaking down glucose in the presence of oxygen
Converts glucose to lactic acid
Muscle remains in state of rigidity
Muscle changes in length
Aerobic exercise
Process of breaking down glucose in the presence of oxygen
Resistance exercise
Converts glucose to lactic acid
9 terms
Muscle Metabolism
Aerobic Exercise
Resistance Exercise
Rigor Mortis
Isotonic Contraction
Results in more efficient muscle metabolism, greater enduranc…
Results in muscle hypertrophy (due to increase in fiber size)…
After death, cell membranes become leaky; Ca2+ leaks out of S…
The muscle changes in length (decreasing the angle of the joi…
Aerobic Exercise
Results in more efficient muscle metabolism, greater enduranc…
Resistance Exercise
Results in muscle hypertrophy (due to increase in fiber size)…
9 terms
Muscle Metabolism
Aerobic exercise
Isotonic contraction
Fast twitch fibers
Resistance exercise
endurance exercise; increase of capillaries, mitochondria, an…
The muscle changes in length (decreasing angle of joint) and…
contract fast, anaerobic, fatigues easily
Results in muscle hypertrophy( growth in size) and increase m…
Aerobic exercise
endurance exercise; increase of capillaries, mitochondria, an…
Isotonic contraction
The muscle changes in length (decreasing angle of joint) and…
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