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
densk [106]
2 years ago
7

What happens to the actin and myosin during a muscle contraction?

Biology
1 answer:
GuDViN [60]2 years ago
3 0

Answer:

<u>Once the myosin-binding sites are exposed, and if sufficient ATP is present, myosin binds to actin to begin cross-bridge cycling. Then the sarcomere shortens and the muscle contracts. In the absence of calcium, this binding does not occur, so the presence of free calcium is an important regulator of muscle contraction.</u>

<h3><u></u></h3>
You might be interested in
In diffusion and osmosis what happens to the concentration of water inside each cell
avanturin [10]

diffusion is the movement of molecules or stuff through the cell membrane

osmosis is the movement of water

water move from high contration to lower concentration

the there is salt outside of the cells the water will move out of the cell membrane and if there is salt inside the cells the water will move into the cell

6 0
3 years ago
aerobic respiration results in the production of large amounts of lactic acid. How does this impact the body? What is one real l
neonofarm [45]
It’s actually called anaerobic cellular respiration because you’re not using oxygen. For example, when you sprint you can’t breathe very well, so you’re not inhaling as much oxygen you need to make that energy for you to move. Your muscles will go into lactic acid fermentation, and the result of that is energy (ATP) along with lactate (lactic acid), and you will probably start feeling pain as the lactic acids build up.

Hope that helps!
7 0
3 years ago
Although ____ kills mosquitoes, it is harmful to the reproduction of many predatory birds.
liberstina [14]
I believe the correct answer is DDT.
It kills mosquitoes but thins the eggs of birds.
Hope this helps.
4 0
2 years ago
Read 2 more answers
A colony of bacteria growing on a culture medium is
Zarrin [17]

Answer:

The correct answer is D! Hope this helps!

3 0
2 years ago
Do unicellular organisms (such as bacteria) have an internal environment that they maintain through homeostasis? Why or why not?
svp [43]

Answer:

This is the answer of your question.

7 0
2 years ago
Other questions:
  • PLEASE HURRY!
    8·2 answers
  • What is an organisms niche
    13·2 answers
  • Which of the choices below describes the pathway of cellular respiration (the complete oxidation of glucose)?
    11·1 answer
  • Tsunami waves flood coastal and inland areas and affect coastal life. Which of these properties of tsunami waves most contribute
    12·1 answer
  • Which events occurred during the Space Race? Select three options.
    13·2 answers
  • ---
    7·2 answers
  • Answer 15 and 16 correctly and I will mark as brainliest
    7·2 answers
  • As nonrenewable resources are used, their supplies decrease. Which of these
    9·1 answer
  • FRAMESHIFT mutation. Explain what this means and how it affects the<br> protein
    8·1 answer
  • 7.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!