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
What have been the results of improved agricultural practices?. . decreased organic farming. increased biodiversity. increased h
dimulka [17.4K]
The results that have been produced from the improved agricultural practices are the following: increased biodiversity, increased productivity, and increased profits. Improved agricultural practices aim to produce food for consumers that are safe and wholesome. If these agricultural practices are improved and applied, there will be an increase in biodiversity as well as increased in productivity. If there is an increase in production, there is an increase in profits.
7 0
3 years ago
Read 2 more answers
Can someone please answer my last question?????
Stolb23 [73]
Sure what is it , where is it
3 0
2 years ago
Tenho uma dúvida sobre uma coisa, por favor me expliquem para onde vai a água da chuva que cai sobre a areia, já que dificilment
laiz [17]
El dificilmenta  es la  lugar crao
8 0
3 years ago
2. Calculate the kinetic energy of a dodgeball that has a mass of 2 kg and velocity of 4 m/s after being thrown.
gizmo_the_mogwai [7]

Answer:

c.16J

Explanation:

because kinetic energy =1/2mv²

1/2 ×2×4²=16J

3 0
3 years ago
Please order the layers of a cliff side by the age of fossils found there from youngest to oldest
aev [14]
Youngest to oldest would be: 3, 4, 1, 5, 2. Since it's from the bottom, the ones furthest from the bottom would be the youngest at the top. The oldest fossils would be closest to the bottom.
7 0
3 years ago
Other questions:
  • How did adam smith and other philosophers of industrialization view natural laws?
    12·1 answer
  • What type of fossil would provide the best information about how an organism behaved?
    11·2 answers
  • How do I do this plz help asap and with work
    8·1 answer
  • The gray frog was abundant in the woodlands. Because of climatic changes, most of the trees in the region died, and the woodland
    13·2 answers
  • What is a trait give two examples
    6·2 answers
  • Which of the following statements correctly describes the inheritance pattern of mtDNA?
    8·1 answer
  • ________ orbit high above Earth collecting data and images of Earth’s surface and atmosphere.
    8·1 answer
  • Help ASAP!!!
    8·1 answer
  • how does sustainable development supports the appropriate use of natural resources and long lasting development?​
    14·2 answers
  • How do the rocks at Lake Mead support the theory of plate tectonics?<br><br> (pls help)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!