Homework Answers
15) power stroke is associated with pi and ADP release pi releases change in conformation of myosin. And ADP causes power stroke.
16) all of the above causes muscle atrophy.
17)highest voltage gated calcium channel is present in cardiac muscle.
18) hyperplasia is found but it is not so easy.
So silly question.
19)nicotine activates receptor and makes dopamine which give feeling of good.
20) A and B both are mononucleated.
Add Answer to:
Directly responsible for the power stroke associated with contraction Release of O a Natt release of...
QUESTION 7 What happens (immediately) if T-tubules blocked in skeletal muscle action potential increased an action...
QUESTION 7 What happens (immediately) if T-tubules blocked in skeletal muscle action potential increased an action potential blocked from progressing in fibril Myosin phosphatase in muscle O4(MP) activated d. inactivated QUESTION 8 Can be activated by stretch receptors (best answer only) a. Skeletal muscle Ob. smooth muscle Oc. myosin light chain phosphataso Od. A and B QUESTION 9 Action potential leads to activation of neurotransmitter in muscle answer true or false a true b. false c. not sure od silly...
1.During skeletal muscle contraction, the following occurs except A)ATP hydrolysis directly causes the movement of the...
1.During skeletal muscle contraction, the following occurs except A)ATP hydrolysis directly causes the movement of the myosin head to cause a power stroke B)When the myosin head releases a phosphate, it can bind actin C)When a new ATP binds to a myosin head, it releases actin D)ATP hydrolysis activates the myosin head so it can bind actin E)When the myosin head binding actin releases ADP, it moves to create the power stroke 2.During skeletal muscle contraction, the length of the...
13. During skeletal musele contraction, whet substance does the sarcoplasmic reticulum store and release? A. acetyicholine...
13. During skeletal musele contraction, whet substance does the sarcoplasmic reticulum store and release? A. acetyicholine B. sodium D. calcium 34. What stimalates the sarcoplasmic reticulum (SR) to release this chemical? A. the voltage change from the muscular action potential traveling down the transverse (1) tubules B. the binding of acetylcholine to ligand-gated channels in the transverse tubules C. direct stimulus from the neural action potential D, the binding of myosin to actin 35. Transverse (T) tubales are extensions of...
Which of the following statements about skeletal muscle contraction is false? During muscle contraction, the Z...
Which of the following statements about skeletal muscle contraction is false? During muscle contraction, the Z discs move closer together as the myosin heads move toward the plus ends of the actin filaments. The changes in voltage across the plasma membrane that occur when a muscle cell receives a signal from the nervous system causes Ca2+ to flow into the sarcoplasmic reticulum, triggering a muscle contraction. An action potential in the muscle cell plasma membrane leads to voltage-gated calcium channels...
8 Number the following events of skeletal muscle contraction in the proper order, with number 1...
8 Number the following events of skeletal muscle contraction in the proper order, with number 1 for the first event and number 6 for the last event. A power stroke occurs as myosin moves into its relaxed position and pulls the thin filament toward the M line. Calcium ions bind to troponin, which pulls tropomyosin away from actin. ATP breaks the actin-myosin attachment, after which ATP is hydrolyzed and myosin is recocked. The myosin head binds to an actin subunit....
homwork help The average skeletal muscle cell's latent period is ___ the contraction/relaxation phase. o A...
homwork help
The average skeletal muscle cell's latent period is ___ the contraction/relaxation phase. o A much shorter than o B about as long as O C much longer than Unanswered Question 49 The latent period represents A the phase of crossbridge formation 0 B the phase of calcium re-uptake by the SR the delay between action potential stimulus arrival and calcium release from the SR D the phase of myosin head release from the actin filament
Question Completion Status: QUESTION 2 Different in smooth muscle compared to skeletal muscle a. Sarcoplasm reticulum...
Question Completion Status: QUESTION 2 Different in smooth muscle compared to skeletal muscle a. Sarcoplasm reticulum is missing b .calcium is not required c. Sarcoplasm reticulum is less developed d. sarcolemma is missing QUESTION 3 Magnesium plays key role in deep tissue contraction, answer true false for this question a. true b. false c.not sure de silly question QUESTION 4 Clear evidence of sarcomere (when looking under microscope) in a. Cardiac muscle smooth muscle skeletal muscled . A and QUESTIONS...
Question 28 4 pts Once the action potential occurs in the sarcolemma, it spreads moving down...
Question 28 4 pts Once the action potential occurs in the sarcolemma, it spreads moving down the T-tubules. What next? What is the correct order of events which result in skeletal muscle contraction? (4 points) a. Once the muscle cell action potential is initiated then calcium ions are released from the sarcoplasmic reticulum. These calcium ions bind to troponin. With this binding, tropomyosin is pulled away from the active sites on actin. Myosin can bind with actin forming a cross...
1. True -False. If a statement is True, place a T to the left of it....
1. True -False. If a statement is True, place a T to the left of it. If a statement is False, place an F to the left of it. Thin filaments in smooth muscles attach to Z discs. The majority of ventricular filling occurs during the period of atrial contraction known as the period of rapid filling. Closure of the atrioventricular valves occurs at the end of diastole/beginning of systole. Tetanus in skeletal muscles is the result of increasing the...
Question 50 1 pts What happens during a tetanic contraction in skeletal muscle? Twitches sum together,...
Question 50 1 pts What happens during a tetanic contraction in skeletal muscle? Twitches sum together, creating a strong contraction Action potentials sum together, leading to a strong contraction The muscle is stretched and reflexively contracts strongly Ca2+ influxes in SR, which leads to a strong contraction Question 49 1 pts In smooth muscle, phosphorylation of leads to contraction. Dihydropyradine Receptor Tropomyosin Myosin light chain Calmodulin O Troponin
QUESTION 7 What happens (immediately) if T-tubules blocked in skeletal muscle action potential increased an action potential blocked from progressing in fibril Myosin phosphatase in muscle O4(MP) activated d. inactivated QUESTION 8 Can be activated by stretch receptors (best answer only) a. Skeletal muscle Ob. smooth muscle Oc. myosin light chain phosphataso Od. A and B QUESTION 9 Action potential leads to activation of neurotransmitter in muscle answer true or false a true b. false c. not sure od silly...
13. During skeletal musele contraction, whet substance does the sarcoplasmic reticulum store and release? A. acetyicholine B. sodium D. calcium 34. What stimalates the sarcoplasmic reticulum (SR) to release this chemical? A. the voltage change from the muscular action potential traveling down the transverse (1) tubules B. the binding of acetylcholine to ligand-gated channels in the transverse tubules C. direct stimulus from the neural action potential D, the binding of myosin to actin 35. Transverse (T) tubales are extensions of...
Which of the following statements about skeletal muscle contraction is false? During muscle contraction, the Z discs move closer together as the myosin heads move toward the plus ends of the actin filaments. The changes in voltage across the plasma membrane that occur when a muscle cell receives a signal from the nervous system causes Ca2+ to flow into the sarcoplasmic reticulum, triggering a muscle contraction. An action potential in the muscle cell plasma membrane leads to voltage-gated calcium channels...
8 Number the following events of skeletal muscle contraction in the proper order, with number 1 for the first event and number 6 for the last event. A power stroke occurs as myosin moves into its relaxed position and pulls the thin filament toward the M line. Calcium ions bind to troponin, which pulls tropomyosin away from actin. ATP breaks the actin-myosin attachment, after which ATP is hydrolyzed and myosin is recocked. The myosin head binds to an actin subunit....
homwork help
The average skeletal muscle cell's latent period is ___ the contraction/relaxation phase. o A much shorter than o B about as long as O C much longer than Unanswered Question 49 The latent period represents A the phase of crossbridge formation 0 B the phase of calcium re-uptake by the SR the delay between action potential stimulus arrival and calcium release from the SR D the phase of myosin head release from the actin filament
Question Completion Status: QUESTION 2 Different in smooth muscle compared to skeletal muscle a. Sarcoplasm reticulum is missing b .calcium is not required c. Sarcoplasm reticulum is less developed d. sarcolemma is missing QUESTION 3 Magnesium plays key role in deep tissue contraction, answer true false for this question a. true b. false c.not sure de silly question QUESTION 4 Clear evidence of sarcomere (when looking under microscope) in a. Cardiac muscle smooth muscle skeletal muscled . A and QUESTIONS...
Question 50 1 pts What happens during a tetanic contraction in skeletal muscle? Twitches sum together, creating a strong contraction Action potentials sum together, leading to a strong contraction The muscle is stretched and reflexively contracts strongly Ca2+ influxes in SR, which leads to a strong contraction Question 49 1 pts In smooth muscle, phosphorylation of leads to contraction. Dihydropyradine Receptor Tropomyosin Myosin light chain Calmodulin O Troponin
Most questions answered within 3 hours.
-
A contestant is facing 10 closed doors. Behind one of these
doors there is a prize....
asked 1 minute from now -
Showing appropriate work and equations, what is the yield to
maturity on a share of Six...
asked 13 minutes ago -
what would be the best entry mode in shipping from the U.S to Spain
by boat...
asked 17 minutes ago -
Under certain conditions, the substance ammonium
nitrate can be broken down to form dinitrogen
monoxide and...
asked 18 minutes ago -
1. A boy stands on one end of a boat, and then walks to the
other...
asked 29 minutes ago -
Casey is on trial under criminal allegations that she engaged in
fraudulent behavior at the company...
asked 34 minutes ago -
Surplus Styles is a manufacturer of hair care products,
including shampoos, conditioners, and hair gels. The...
asked 32 minutes ago -
Using an income-expenditure diagram, use the infinite line and
double-drop line tools to show the economy...
asked 40 minutes ago -
Which expression computes a pseudorandom integer between -10 and
10 using rand()
from cstdlib?
A. (rand(...
asked 47 minutes ago -
Roybus, Inc., a manufacturer of flash memory, just reported that
its main production facility in Taiwan...
asked 55 minutes ago -
Two capacitors connected in parallel produce an equivalent
capacitance of 45.0 μF but when connected in...
asked 1 hour ago -
The differences between the two sets of dependent data are -1,
2,-,2, 2. Round to the...
asked 1 hour ago