1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
xxTIMURxx [149]
3 years ago
11

What is required to initiate the coupling of myosin to actin?

Biology
1 answer:
VladimirAG [237]3 years ago
6 0

Answer:

<h2>Calcium ions</h2>

Explanation:

The actin and myosin are the myofilaments which are involved in the contraction and relaxation of the muscle. The actin is thin filaments and contains the attachment site for the myosin but the site is blocked by the tropomyosin and troponin proteins.  

When calcium ions present in the muscle binds to the troponin molecules, it changes the conformation of the tropomyosin. This change exposes the attachment site of the myosin and then the myosin binds the troponin and causes Powerstroke and leads to contraction of a muscle.

Thus, Calcium ions is correct.

You might be interested in
_____ is an essential lung-coating substance that keeps air sacs from collapsing.
lakkis [162]
The answer is surfactant
7 0
3 years ago
The chemical reaction below represents a metabolic process. Which metabolic process listed below uses the products of this react
san4es73 [151]
What is the chemical reaction in the problem?
7 0
3 years ago
Which 2 compositions of water move within a deep water current?
rjkz [21]
C. because if you
go deep in water its freezing cold and its has a high salt content 
7 0
3 years ago
Consider the steady ultafiltration of a solute from the capillary across the glomerular endothelial cells into the urinary filtr
Alla [95]

Answer:

DEC = CC + CF

Explanation:

It should be understood that, the concentration profile across the endothelial cells will base on the diffusion rate of the filtrate .

6 0
3 years ago
Which method of wast management would be the least preferred?
mel-nik [20]

A:Incineration I think sorry if I’m wrong

4 0
3 years ago
Other questions:
  • The food webs that horse fly is integrated in and how it contributes to trophic levels of ecosystem?
    13·1 answer
  • What type of rocks form from decaying plants
    10·2 answers
  • All but one factor plays a part in water movement in and out of the cell. that is
    12·1 answer
  • What is the main role of a hormone?
    8·1 answer
  • 3. The nitrogenous base, adenine, pairs with
    9·1 answer
  • Please help me this homework is super important if I do not get 100% i will fail this class
    6·1 answer
  • What are two major parts of compound microscope?​
    13·2 answers
  • The mother is heterozygous for type A blood and the father is heterozygous for type blood B. Use alphabets to answer the questio
    6·1 answer
  • On the Periodic Table of the Elements, all of the elements within Group 15 have the same number of
    10·1 answer
  • When does facilitated diffusion occur
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!