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
A mutation near the middle of a gene changes the DNA to the following nucleotides: ATT. What
True [87]

Answer:

A mutation near the middle of a gene changes the DNA to the following nucleotides: ATT. What  kind of mutation occurred in this situation?

missense mutation

Explanation:

3 0
3 years ago
Which of the choices below forms midway between the divided nucleus during cytokinesis in plant cells?
Paul [167]
The plant cells are in a tree. The cytokinesis is the cells in a plant's top root. Soo, it is divided into 5 parts.

If you have any more questions, I'm available.


- Shelly O
5 0
3 years ago
It takes energy for an organism to produce a particular structure such as a stripe on a clover leaf that is otherwise plain.
kipiarov [429]

Answer:

increases its ability to resist predation because the snails that eat it die

6 0
2 years ago
The division of Earth’s history into smaller units makes up the ____. a. eras c. periods b. geologic time scale d. sequence of e
fenix001 [56]
B beacuse its is the best answer trust me boi
4 0
3 years ago
Read 2 more answers
Why cannot a population keep increasing forever in an ecosystem?
Dmitrij [34]
A population cannot continue to increase forever because each population has a carrying capacity, which is the max number of organisms that can live in an environment with the available resources. At some point, each population will hit their carrying capacity when they run out of resources.
8 0
3 years ago
Other questions:
  • HELP FOR BRAIN! WHO WILL HELP LETS SEEEEEEEEEEEEEEEEEE:o
    10·2 answers
  • A client taking clozapine states, “i do not like feeling so sedated during the day. i can hardly keep my eyes open.” which respo
    10·1 answer
  • What type of organic molecule are enzymes? (proteins, lipids, carbohydrates, or nucleic acids)
    9·1 answer
  • In the name Acer rubrum, the word rubrum designates the species. Please select the best answer from the choices provided T F
    13·2 answers
  • Pleasseee answer this
    6·1 answer
  • Which of the following statements is true?
    7·1 answer
  • Stuck on these 2 questions
    14·1 answer
  • Which of these best describes the practice of management?
    8·2 answers
  • Reverse movement of an action potential into the soma and dendritic field of a neuron is called _____.
    5·1 answer
  • Commercial crabbero catch so many blue crabs that the blue crab population decreases.Which two populations are also likely to de
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!