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
CaHeK987 [17]
3 years ago
13

When a skeletal muscle relaxes, what causes the myosin cross-bridges to separate and the thin filaments to return to their origi

nal position?
Biology
2 answers:
Rina8888 [55]3 years ago
7 0

When a skeletal muscle relaxes,myosin head attach to actin by breaking down ATP to ADP and phosphate with the help of myosin ATPase. The myosin head forms the cross -bridges on the active site of the actin.The cross-bridge pulls the actin which slide over the myosin. The release of ADP completes the cross-bridge movements . ATP attaches to myosin, and break the actin -myosin cross-bridge. Thus breaking of ATP into ADP and phosphate help the thin filament to return to their original position.

Kaylis [27]3 years ago
3 0

Answer:

A loss of calcium.

Explanation:

You might be interested in
A double slit arrangement produces interference fringes for yellow sodium light. To produce narrower-spaced..?fringes, should re
Artyom0805 [142]

Answer:

Blue light

Explanation:

Bcoz fringe widht is directly proportional to wavelength of light

And red has longest wavelength

Blue has shortest

3 0
3 years ago
Read 2 more answers
20
Reil [10]

When tissues are harmed by bacteria, trauma, heat, or any other cause, an inflammatory reaction occurs.

<h3>What happen when a honey bee stings?</h3>

When a honey bee stings or a disease infects damaged cells, chemicals are released. chemicals are a group of substances that include prostaglandins, histamine, and bradykinin. These substances promote swelling by forcing blood vessels to leak fluid into the tissues.

During the inflammatory reaction, the following processes occurred:

Redness, swelling, and loss of function are all symptoms of heat.

Inflammation is the body's natural defense system. Damaged cells, irritants, and infections are recognized by the immune system, white blood cell kills the antigen and stimulates the other defense cell to act. this process is called a macrophage.

Learn more about defence system here:

brainly.com/question/22681268

#SPJ1

8 0
2 years ago
The first major step of gene expression and genetic splicing of exons occurs in this specific aqueous environment of the cell. _
ipn [44]

Answer:

Nucleus

Explanation:

Expressing a gene basically means manufacturing its corresponding protein. This process has two major steps:

  1. In the transcription process, the information in DNA is transferred to a messenger RNA (mRNA) molecule. This first major step of gene expression and genetic splicing of exons occurs in nucleus environment of the cell.
  2. During translation, which is the second major step, the mRNA is "read" according to the genetic code, which relates the DNA sequence to the amino acid sequence in proteins. Within all cells, the translation occurs within a specialized compartment called the ribosome.

8 0
2 years ago
Read 2 more answers
During cellular respiration, every living thing in this food web uses ______ gas and releases ______ back into the environment
nordsb [41]
Oxygen; carbon dioxide
3 0
3 years ago
Read 2 more answers
Unit Test
Dmitry [639]
It would be hypothesis
3 0
3 years ago
Other questions:
  • In a windmill, electrical voltage is produced in the _____. rotor blades shaft generator wires to your house
    12·2 answers
  • Chromosomes are distributed equally to daughter cells. Interphase or mitosis
    7·1 answer
  • Identify the structures and<br> functions of the male and<br> female reproductive systems.
    10·1 answer
  • Refer to the following five terms to answer the following questions. Choose the most appropriate term for each phrase. Each term
    11·1 answer
  • Cuáles son los alimentos que se deben consumir en menor cantidad
    12·1 answer
  • PLEASE HELP ME!!!:(
    12·1 answer
  • What do you call a forested wetland in wet season, that typically remains waterlogged at all times. Has trees*
    5·2 answers
  • There were two populations of coyotes on either side of the Colorado River. Since the water was high, they were not able to inte
    7·1 answer
  • Which sequence furthers scientific knowledge? Hypotheses generate a scientific question, leading to observations, which can be t
    8·2 answers
  • Please help me :( i am struggling with this​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!