Question

Altering the concentrations of which of the following ions will have an effect on muscle contraction?...

Altering the concentrations of which of the following ions will have an effect on muscle contraction? You may select more than one answer.

Potassium

Calcium

Magnesium

Sodium

Science   Anatomy-And-Physiology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Answer

Calcium , Magnesium

Explanation

  • Calcium play a significant role in muscle contraction .
  • It activate actin-myosin interaction through intervention of tropomyosin and troponin .
  • Magnesium play a role in muscle contraction by stimulating calcium re-uptake by calcium activated ATP ase of the sarcoplasmic reticulum
  • It also help in translocation of calcium ion through smooth cell membranes
  • Calcium and magnesium play importnat role in muscle contraction , hence altering the concentration of these ions will have effect on muscle contraction.
  • Sodium and postassium doesnot play a significant role in muscle contraction hence option A and D are wrong.
0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Contraction in all muscles depends on an increase in the intracellular concentration of Ca2+ ions. Millions...
Contraction in all muscles depends on an increase in the intracellular concentration of Ca2+ ions. Millions of Americans, however, regularly take prescription medications that act as calcium channel antagonists at all cell membranes, reducing the influx of Ca2+ from the outside of cells to the inside (but not entering the cytoplasm). Mark all statements that are true: a. these drugs would affect spatial summation in muscle. b. these drugs would have almost no effect on the force of cardiac muscle...
Use the following response which id most closely related Skeletal muscle requires ____ for contraction Smooth...
Use the following response which id most closely related Skeletal muscle requires ____ for contraction Smooth muscle requires ____ for contraction Cardiac muscle requires ____ for contraction All muscle require ___ for relaxation Neurons require____ for exocytosis of transmitters Neurons stimulate this ___ event in all innervated muscle A. Calcium must bind to calmodulin B. Calcium must bind to troponin C. A calcium dependent protein kinase must be activated D. Calcium must be actively transported into the sarcoplasmic reticulum E....
PART 1: A physiologic explanation for the observed effect of exercise on heart rate would be...
PART 1: A physiologic explanation for the observed effect of exercise on heart rate would be the following: (select the correct bold-faced options) Exercise-induced ["parasympathetic", "sympathetic"] stimulation to the ["autorhythmic", "contractile"] cells of the SA node ["increases", "decreases"] the permeability of the muscle cell membrane to ["potassium", "calcium", "sodium", "both calcium and sodium"] ions, bringing the membrane to threshold at a more rapid pace. PART 2: A physiologic explanation for the observed effect of exercise on PQ interval would be...
What is the sodium ions and potassium pump? Where do you find the pumps (which cells)?...
What is the sodium ions and potassium pump? Where do you find the pumps (which cells)? When the sodium-potassium pump is found, which ions do you find inside the cell? Which ions do you find outside of the cells? What is the importance of the pump to muscle physiology?
Select all of the following that are true about the common ion effect for dissolving solids....
Select all of the following that are true about the common ion effect for dissolving solids. 1. Mg3(PO4)2 will be more soluble in a 1.0 M solution of magnesium nitrate than in a 1.0 M solution of magnesium sulfate. 2. AgBr is more soluble in a 1.0 M solution of sodium bromide than it is in a 1.0 M solution of calcium bromide. 3. The common ion effect only works when adding anions. 4. CaCO3 can be made more soluble...
Describe completely the process of skeletal muscle contraction through to relaxation beginning with excitation from a...
Describe completely the process of skeletal muscle contraction through to relaxation beginning with excitation from a motor neuron. You may upload a file to help explain your question i.e. a picture or drawing. Using all of these terms: Acetylcholine Acetylcholinesterase Actin Choline DHP ryanodine molecule Diffusion Exocytosis Re-uptake pump(s) Sarcolemma                             Sarcomere Transverse-Tubules Troponin Tropomyosin   Roles of ATP, Calcium, Sodium, and Potassium ATP and Myosin: How specifically arrival of ATP, dephosphorylating of ADP +P, and release of ADP and P...
During muscle contraction the muscle uses Ca2+ bound to which of the following structures to turn...
During muscle contraction the muscle uses Ca2+ bound to which of the following structures to turn the muscle contraction on or off tropomyosin myosin titin actin troponin
Facilitated diffusion requires which of the following? You may select more than one answer. transport protein...
Facilitated diffusion requires which of the following? You may select more than one answer. transport protein ATP sodium potassium pump vesicle
Q1. an isometric(static) muscle contraction: Select one: a) muscle tissue shortens b) muscle tension exceeds the...
Q1. an isometric(static) muscle contraction: Select one: a) muscle tissue shortens b) muscle tension exceeds the force of the load c) the load is moved d) both b and c are correct e) none of the above is correct Q2. Which of the following statements concerning the characteristics of different muscle fiber types is FALSE? Select one: a) the higher the ATPase activity, faster the speed of contraction b) muscle fibers containing large amounts of myoglobin have a dark red...
Q1. Which of the following is a characteristic of a smooth muscle cell? Select one: a....
Q1. Which of the following is a characteristic of a smooth muscle cell? Select one: a. It has T tubules to bring action potentials into the cell b. It can be stimulated by hormones c. It is under the control of the somatic nervous system d. It relies on calcium which comes exclusively from the sarcoplasmic reticulum Q2. Which of the following tissues does NOT have nicotinic receptors? Select one: a. motor end plate in the neuromuscular junction b. adrenal...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT