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vazorg [7]
3 years ago
6

If a disorder limits, the number of calcium ions that can bind to actin, what would happen to the sarcomere?​

Biology
1 answer:
sveticcg [70]3 years ago
5 0

Answer:

Contraction is prevented

Explanation:

The sarcomere is the basic contratile unit of muscle i.e the unit responsible for contraction in the muscle and it consist of two main protein actin; which forms filaments involved in contraction and myosin; a motor protein responsible for contraction. Calcium interacts with these protein and in the absence of Ca, contraction is inhibited (sacromere with not be able to undergo contraction)

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20.
n200080 [17]

Answer:

Structurally, proteins are different from carbohydrates because all proteins contain nitrogen (option C).

Explanation:

The basis of the chemical composition of proteins is carbon, hydrogen, oxygen and nitrogen, so all proteins have nitrogen in their structure. Some proteins also possess phosphorus and sulfur atoms, among others.

Proteins are biomolecules formed by the union of multiple amino acids through carboxyl-amino bonds, called petidic bonds. Their content of nitrogen and other atoms in their structure is what makes them different from carbohydrates.

The other options are not possible because:

  • <em>Only some proteins contain </em><u><em>iron</em></u><em> in their composition.</em>
  • <u><em>Potassium and helium</em></u><em> are not part of the protein structure. </em>

5 0
3 years ago
A leech attaches to an animal and feeds off the animal's blood.
Nana76 [90]

Answer:

Explanation:

A

8 0
2 years ago
Read 2 more answers
How do both similarity and differences among amino acids allow them to form macromolecules with a wide variety of properties
ioda
The R group is what allows amino acids to form macromolecules with different properties. every amino acid has the same basic structure, the only difference is what the R group is made up of. The similarities allow the amino acids to form a chain while the differences allows them to have different functions. Hope this helped!
3 0
3 years ago
Based on your observations, which way does earth rotate—from east to west, or west to east? Explain your answer.
JulijaS [17]

Based on my observations, the earth rotates from west to east about the axis of rotation. The counter-clockwise rotation of the earth is as viewed from the North Pole star Polaris.

My observations supporting the counter-clockwise rotation of the earth are:

  • The Sun rises in the east and sets in the west.
  • All celestial objects including the stars and the moon rise in the east and set in the west.

The rotation is the result of the strong geomagnetic field of the earth. It is also responsible for the formation of day and night on the planet.

Learn more about the Rotation of the earth:

brainly.com/question/24246687

6 0
1 year ago
Can the theory of evolution become a scientific law? Why or why not?
horrorfan [7]

Answer:

A

Explanation:

Correct answer is

A.) No. Theories can be refined and improved over time, but cannot become scientific laws.

4 0
3 years ago
Read 2 more answers
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