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Diano4ka-milaya [45]
2 years ago
12

After strenuous exercise sore muscles can occur because of?

Biology
1 answer:
kramer2 years ago
3 0
The correct answer is A buildup of lactic acid in the tissues I think. I hope this helped dear:)
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What is happening at the cellular level during a muscle cramp?
Romashka [77]

Muscle cramps are caused when the muscle takes longer than normal to relax after a contraction. During contraction, the myosin heads attach on their binding sites on the actin filament and pulls on the filament hence shortening the sarcomeres. For the myosin head to release its binding site on the actin filament, ATP attaches to an active site on the myosin and is hydrolyzed to ADP and Pi. This causes relaxation after a contraction cycle.  Cramps, therefore, may be due to depletion of ATP molecule in the muscles cells.

Another reason for cramps may be a high amount of calcium in the muscles that bind to troponin on the actin filaments. This exposes the myosin binding sites longer hence promotes the formation of cross-bridge even when the contraction of the muscle is not intended anymore.


7 0
3 years ago
people who have aids are more likely than others to become ill with multiple infections because the pathogen that causes aids is
julsineya [31]
Is that the whole question please be more specific

8 0
3 years ago
In 1918, the Russian Tsar Nicholas II was deposed, and he and his family were reportedly executed and buried in a shallow grave.
Arte-miy333 [17]

Answer:

This can be evaluated with DNA test- by comparing the mitochondrial DNA (mtDNA)of the Tsar family with the woman-Anastasia. <u>Maternal DNA is inherited uninterrupted from generation to generation </u>

Explanation:

The living consort of Queen of Elizabeth ,Prince Philip, <u>is a grand nephew of Tsar Nicholas 11.</u> They  shared the same maternal ancestry.

Therefore, his   mitochondrial   must be maternal, and compatible with that of the Tsar Nicholar. Male children always inherit maternal mitochondria (mtDNA)and  passed from generations to generation.

T<u>he blood samples of prince Philip can be  taken, to extract the mtDNA,and matched  with the sample  of mtDNA obtained from the exhumed bodies of the Tsars,</u><u> </u>to reaffirmed the compatibility of the ancestry .  

If sample of the compatible mtDNA,  from price Phillip was compared with the mtDNA of the woman who claimed to be Anastasia, her claim can be validated.

Matched sample  shows she was the daughter, while negative result proves otherwise.

<em></em>

7 0
3 years ago
What organs does the pelvic region hold
Charra [1.4K]
<span>the pelvic colon, rectum, and bladder

</span>
4 0
4 years ago
Which of the following is considered a second-line defense?
lys-0071 [83]

Answer:

B. Digestive

Explanation:

It destroys invaders.

8 0
3 years ago
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