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
Firdavs [7]
3 years ago
15

Cross bridge formation between myosin heads and actin molecules is caused by the elevation of calcium ion concentration in the c

ytosol. During rigor mortis, this elevation of calcium ion concentration in the cytosol is permanent because ________.
Biology
1 answer:
almond37 [142]3 years ago
3 0

Answer:

sarcoplasmic reticulum deteriorates and ATP production is stopped

Explanation:

Rigor mortis is the third stage of death characterized by stiffening of joints and muscles in body. The stiffening occurs because muscles are not able to return to the relaxed state. There are two reasons for rigor mortis, depletion of ATP and increase in calcium concentration in cytosol. Due to these factors the actin-myosin crossbridge is not able to break and the muscles remain in contracted state.

Sarcoplasmic reticulum deteriorates and calcium is released into the cytosol. Sarcolemma ( covering of muscle fiber ) also breaks down releasing extra calcium into the cytosol. Calcium is responsible for formation of actin-myosin cross bridge and when its concentration increases the bridge is formed continuously leading to stiffening of muscles and joints.  

You might be interested in
Members of the same species of bird became geographically separated. Over many years, the two groups evolved to become two diffe
alex41 [277]

Answer:

More information required

Explanation:

Is there a picture you forgot to post with the question?

In the problem you mention, which I assume comes from the study of finches in the Galapagos, some birds evolved to have different beaks, depending on the food available. Depending on what kind of seeds there are, different beak sizes were selected for, with those with the right fit eventually winning out over the rest on the individual islands.

6 0
3 years ago
Which of the following moves using pseudopods ?
marissa [1.9K]

Answer:

B

Explanation:

3 0
3 years ago
Read 2 more answers
When assisting a child with ventilation:
Zolol [24]
Hello There!

Based on my First Aid classes the answer is D. All of the above.
If someone turns unconscious, you'd have to perform CPR and call an emergency service as soon as possible.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
7 0
3 years ago
?????????????????????????
iVinArrow [24]
Answer: Rosalind Franklin

Franklin created an x-ray photograph that allowed Watson and Crick to work out the 3D structure of DNA. 
3 0
3 years ago
Es un combustible fosil utilizado frecuentemente en las hornallas de nuestras cocinas para calentar los alimentos
Daniel [21]

Answer:

Gas natural

Explanation:

5 0
3 years ago
Other questions:
  • Compare soemthing that is scientific and something that is pseudoscientific
    8·1 answer
  • Which is part of the vascular system of plants?<br> a. pollen<br> b. jetsam<br> c. flotsam?
    7·1 answer
  • How do you clap cheek that a flat??
    15·2 answers
  • When the juxtaglomerular cells in the kidney are, they produce and secrete the enzyme renin into the blood. what subsequent chan
    7·1 answer
  • Describe the advantage of reflex response in the survival of organisms
    9·1 answer
  • _____ theory states that cells can divide a maximum of about 75 to 80 times, and that as we age our cells become less capable of
    12·1 answer
  • Plz need help!!!!!!!!!!!
    10·1 answer
  • Help please A carpenter feels warmer as the sun rises higher in the sky. Infer which energy transformation may be happening.
    11·1 answer
  • Explain the husbandry of cattle<br>​
    6·1 answer
  • Which of the following cells is formed by meiosis?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!