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
zhenek [66]
3 years ago
15

Power stroke (myosin head bends) coupled with the release of ADP and phosphate, ATP hydrolyzed to ADP and Phosphate and the Myos

in head changes configuration then binds to the actin filament, ATP binds to bent myosin and detaches myosin from actin filament, Myosin and ATP are unbound and ben

Biology
2 answers:
svetlana [45]3 years ago
7 0

Answer:

Power stroke (myosin head bends) coupled with the release of ADP and phosphate

Explanation:

Muscle contraction results from myosin heads adhering to actin and attracting it inwards. It uses ATP. Myosin adhers to actin at a binding site of its globular actin protein and adheres at another binding site for ATP (hydrolyzed ATP to ADP, Pi  and energy)

ATP binding prompts myosin to detach from actin, ATP is changed to ADP and inorganic phosphate, Pi by ATPase. The energy formed at this process orientates myosin head to a “cocked” direction.

The myosin head goes in the direction of the M line, holding the actin with it in the process causing the filaments to orientate nearly 10 nm in the direction of the M line--- power stroke (force is produced), the sarcomere reduces in length and the muscle contracts.

Note: The power stroke is seen when ADP and phosphate disattaches itself from the myosin head.

At the terminal point of the power stroke, the myosin head as low-energy, followed by ADP release.

The attached image shows the cross-bridge muscle contraction cycle, which is activated  by Ca2+ sticking to the actin active site. And how actin moves in relation to myosin.

vesna_86 [32]3 years ago
4 0

Answer:

Refer below.

Explanation:

ATP restricting makes myosin discharge actin, permitting actin and myosin to disengage from one another. After this occurs, the recently bound ATP is changed over to ADP and inorganic phosphate, Pi. The catalyst at the coupling site on myosin is called ATPase. The vitality discharged during ATP hydrolysis changes the point of the myosin head into a "positioned" position. The myosin head is then in a situation for additional development, having potential vitality, yet ADP and Pi are as yet joined. In the event that actin restricting locales are secured and inaccessible, the myosin will stay in the high vitality arrangement with ATP hydrolyzed, yet at the same time joined.

On the off chance that the actin restricting destinations are revealed, a cross-extension will shape; that is, the myosin head traverses the separation between the actin and myosin particles. Pi is then discharged, permitting myosin to use the put away vitality as a conformational change. The myosin head advances toward the M line, pulling the actin alongside it. As the actin is pulled, the fibers push roughly 10 nm toward the M line. This development is known as the force stroke, as it is the progression at which power is created. As the actin is pulled toward the M line, the sarcomere abbreviates and the muscle contracts.

At the point when the myosin head is "positioned," it contains vitality and is in a high-vitality arrangement. This vitality is consumed as the myosin head travels through the force stroke; toward the finish of the force stroke, the myosin head is in a low-vitality position. After the force stroke, ADP is discharged; nonetheless, the cross-connect shaped is still set up, and actin and myosin are bound together.

You might be interested in
I need help with this
Kazeer [188]
Id say C. It makes the most sense to me.
7 0
3 years ago
Cs,fcmv,slmdvlmvdvsf
Pavlova-9 [17]

Answer:

me too

Explanation:

4 0
3 years ago
LUIZ
oksano4ka [1.4K]

Answer:

anwser is C

Explanation:

they both have 6 carbon atoms so A is wrong

both are monosacchride so B is wrong

both have same molecular formula which is (C₆H₁₂O₆) so D is wrong

in glucose the anomeric carbon is the first carbon, whereas in fructose, the anomeric carbon is the second carbon. The anomeric carbon is the one containing the carbonyl group (carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom: C=O)

4 0
3 years ago
You are a genetic counselor. A couple comes to you for advice. The female is pregnant with their first child. Both have family h
KatRina [158]

Answer:

The answer is B: The child will likely have Tay-Sachs disease if both parents pass on the dominant alleles.

Explanation:

Brainliest pls!!

8 0
3 years ago
A man with normal vision marries a color-blind woman. Red-green color blindness is an X- linked recessive disorder. They have a
jeyben [28]

Answer: The probability is 100%.

Explanation: The chromosome X is related to gender. A man carries two different chromosomes (XY) and a woman carries two similar chromosomes (XX). The offspring of a couple will inherited:

  • If it is a boy, he inherites the chromosome Y from his father and X from his mother;
  • If it a girl, she inherites X from her father and X from her mother;

In the question, the woman is color-blind, which means she carries the recessive alleles: X^{d}X^{d}

The man, on the other hand, is normal, so his X-linked genotype will be: X^{D}Y.

Now, since they have a daughter, she inherited her double X from each of her parents, which means she inherited one X^{d} from her mother and one X^{D} from her father.

So, the daughter's genotype can only be heterozygotic  X^{D}X^{d} in other words, the probability is 100%.

5 0
3 years ago
Other questions:
  • During aerobic cellular respiration, ___________ combines with hydrogen ions and the product is released as a by-product of resp
    12·1 answer
  • Steven pushes a crate across a warehouse floor. If the crate moves at a constant speed in a straight-line path, which statement
    13·1 answer
  • During exorcise, epinephrine car enhance skeletal muscle glycogenolysis through which of the following mechanisms? Release of Ca
    14·1 answer
  • Groundwater _____. A)exists above the earth's surface B)is impossible to pollute C)forms when precipitation seeps into the soil
    12·2 answers
  • Does a june bug have jaws?
    15·1 answer
  • (a) What is the normal temperature of a<br>human body​
    5·2 answers
  • Please answer will mari brainelist​
    15·2 answers
  • What is the ingroup in a cladogram?
    6·1 answer
  • Balance the chemical reaction of water<br><br> H2+02 — H20 <br><br> Added photo plz if you can help
    14·2 answers
  • Darwin explained that evolution occurred by a mechanism called.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!