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
Evgen [1.6K]
3 years ago
5

How is muscle contraction reversed? A. Calcium binds to calmodulin and is quickly degraded to relieve calcium’s inhibition of tr

opomyosin. B. Calcium is neutralized by an influx of negatively charged ions, which block calcium from binding to myosin. C. Calcium ion pumps in the sarcoplasmic reticulum reduce the cytosolic calcium levels and tropomyosin blocks the myosin-binding site on actin. D. Calcium is pumped out of the cell to reverse the voltage and cause myosin to degrade
Biology
1 answer:
EastWind [94]3 years ago
8 0

Answer:

When the stimulation of the motor neuron providing the impulse to the muscle fibers stops, the chemical reaction that causes the rearrangement of the muscle fibers' proteins is stopped.

Explanation:

This reverses the chemical processes in the muscle fibers and the muscle relaxes. hope this helps you :)

You might be interested in
Explain how and why hypertonic, isotonic, and hypotonic solutions affect plant and animals cells?
lesya692 [45]
When placed into an hypertonic solution, animal cells will shrivel up, while plant cells will stay firm thanks to their air-filled vacuole. In a hypotonic solution, the cells will take on water and appear more plump. In an isotonic solution, they'll stay the same.
3 0
2 years ago
Compare the properties of elements and compounds. Give two examples of each, including one example that exists in the human body
padilas [110]


elements are pure substances composed of only one kind of atom. An example that is present in the body is oxygen which is present in the lungs and also in the blood. Compounds are composed of different types of atoms which differ in ratio from one to another. an example is water. The two terms are different in structure and hence the properties.
6 0
3 years ago
Describe three properties you can use to distinguish between organic and inorganic compounds
motikmotik
Organic compounds and inorganic compounds differ from each other. Three differences are :
1. Organic compound has carbon and hydrogen atoms while the inorganic compound has other atoms.
2. Organic compounds make the important biomolecules such as amino acids, proteins, DNA, RNA, etc whereas the inorganic compounds make the salts, acids, bases, etc.
3. Organic compounds have carbon hydrogen bonds or carbon carbon bonds. These types are not formed in inorganic compounds.
5 0
3 years ago
Why virus, virions, prions have no place in five kingdom classification​
Ainat [17]

Hey, there!!

There is no place for virus, virions, prions in kungdom classification. The reason is they show both living and non living characters, which don't define them whether they are living beings or non living things.

As in 5 kingdoms, the only living organisms are classified.

  • Kingdom Monera mostly deals with the organism which contains prokaryotic cells.
  • Kingdom Protista deals with the organism which have eukaryotic cells.
  • Kingdom Fungi deals with various fungal organism.
  • Kingdom Plantae deals with various type of plants.
  • Kingdom Animalia deals with various type of animals.

So, you can see that there is non of the kingdoms which deals with the organism which have similar characteristics like viruses, virions and prions.

<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

7 0
3 years ago
Why is the cell theory important ?
const2013 [10]

Answer:

The cel theory is important because it affects nearly every aspect of biology, from our understanding of life, death, to how we manage diseases and more.

Explanation:

I majored in Biology

6 0
2 years ago
Other questions:
  • The most important factor that limits the size of a cell is _________
    15·1 answer
  • I WILL GIVE 20 EXTRA POINTS!!
    10·1 answer
  • A certain species of pine tree survives only in scattered locations at elevations above 2800 meters in the western United States
    12·1 answer
  • Translation is divided into three phases: initiation, elongation, and termination. In this tutorial you will gain an understandi
    11·1 answer
  • Topic: Enzymes and germinating seeds
    8·1 answer
  • the small intestine is at the same level of organization as which of the following heart, connective tissue, digestive system, o
    8·2 answers
  • If species is the most specific group shown in the diagram, what is the
    8·1 answer
  • SOMEONE SMART PLS HELP!!!!! If 1 kg of fuel is used in the above fusion reaction, the resulting helium has a mass of 0.993 kg. I
    10·1 answer
  • Aquatic Plants<br> Plz helpp
    11·1 answer
  • Make 2 Punnett squares using these crosses.<br> AA x aa and Aa x aa
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!