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
lina2011 [118]
3 years ago
14

When troponin binds calcium, A. it changes conformation, twisting tropomyosin and exposing actin-myosin binding sites. B. ion ch

annels open and sodium rushes into the muscle cell. C. it allows tropomyosin to bind actin. D. it changes conformation, exposing the ATP binding site and allowing the actin-myosin bond to break. E. ATP binds to the myosin head, allowing myosin to attach to actin.
Biology
1 answer:
vampirchik [111]3 years ago
7 0

Answer:

Option (A).

Explanation:

The muscle contains the different type of proteins that helps in the contraction of muscles and the movements of different body parts. The proteins are actin, myosin, nebulin and tropomyosin.

The binding of the troponin with the calcium result in the confrontational change. This twists the another protein tropomyosin. This helps in the exposure of the actin-myosin binding site. Later, the ATP acts as the main factor for the muscle contraction.

Thus, the correct answer is option (A).

You might be interested in
Half of the moon is always lit except during an eclipse.<br><br> True or false?
olga nikolaevna [1]

Answer:

Half of the Moon's surface is always illuminated by direct sunlight, except during lunar eclipses when Earth casts its shadow on the Moon. Just how much of that light we can see from Earth varies every day, and we refer to this as a Moon phase.

Orbits: Earth

Explanation:

8 0
3 years ago
Read 2 more answers
How a synthetic sponge mimics a live sponge to pick up dirt
natima [27]

The component would be known as a microfiber i think im not sure

8 0
3 years ago
The superscript of element Cl⁻ indicates it is a        A. positive ion.   B. neutral atom.   C. negative isotope.   D. negative
LekaFEV [45]
The superscript of element Cl⁻ indicates it is a negative ion.
6 0
4 years ago
Read 2 more answers
Arachidonic acid (ARA) and docosahexaenoic acid (DHA) are two long-chain fatty acids necessary for the development of Multiple C
lana [24]

Answer:

The correct answer is: the nervous system, brain, and eyes.

Explanation:

Arachidonic acid (ARA) and docosahexaenoic acid (DHA) are long-chain polyunsaturated fatty acids that have great nutritional value, as they are omega-6 and omega-3 fatty acids, respectively, meaning they are essential fats that cannot be produced by the body and, therefore, need to be part of the diet.

The consumption of ARA and DHA has been directly linked to the development of the brain and the retina, and the inclusion of these fatty acids in the nutrition of infants has been proven to be extremely beneficial to their growth.

Besides their functions in the development of the nervous system and the eyes, ARA and DHA play a role in maintaining a healthy immune system and preventing cardiovascular conditions.

7 0
3 years ago
By adding the tin atoms to copper, it makes the metal harder to<br><br><br> Helpp??
katovenus [111]

Answer:

Adding tin to copper during melting changes the properties of the metal. The larger tin atoms restrict the movement of the copper atoms, making the material harder.

Explanation:

Please brainliest

7 0
3 years ago
Other questions:
  • Common rosefinches arrived in Hawaii roughly 6 to 7 million years ago and have since evolved into at least 56 new species of hon
    6·1 answer
  • Research suggests that high dietary intake of ________ by pregnant women may be related to higher iq levels among children.
    7·1 answer
  • Your science teacher has asked the class to mke cell city model. which building or business in the city could represent the mito
    5·2 answers
  • All cells in an embryo have the same DNA. However, the embryonic cells form organs, such as the brain and the kidneys, which hav
    6·1 answer
  • Calculate the net force of the following situation.
    7·1 answer
  • Which statement about how organisms depend on abiotic factors in an aquatic ecosystem is not true?
    13·2 answers
  • Imagine that you are using a microscope. Your high power objective 40x and your eyepiece is 15x. What is your total magnificatio
    12·2 answers
  • According to the map above, which language family is most commonly used on the European continent?
    9·2 answers
  • How do organisms extract and utilize the energy from ATP?
    7·1 answer
  • Compare sexual and asexual reproduction
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!