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Kamila [148]
3 years ago
12

Muscle contraction is triggeredA) in response to an increase in the cytoplasmic Ca2+concentration.B) in response to a decrease i

n the cytoplasmic Ca2+concentration.C) in response to an increase in the cytoplasmic cAMP concentration.D) in response to a decrease in the cytoplasmic cAMP concentration.E) in response to an increase in the cytoplasmic titin concentration.
Chemistry
1 answer:
natima [27]3 years ago
4 0

Answer:

A) in response to an increase in the cytoplasmic Ca2+concentration.

Explanation:

Muscle contraction occurs in response to an increase in the cytoplasmic Ca2 + concentration.

This process occurs with the shortening of the sarcomeres resulting in a result, the actin filaments react with myosin, generating actomyosin. During this reaction, it is necessary to increase the cytoplasmic concentration of Ca + and ATP. In this, myosin will break down ATP, releasing energy so that the muscle can contract.

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Answer:

V_1=2.49mL

Explanation:

Hello,

In this case, considering that the moles of hydrioiodic acid remain unchanged during the dilution process:

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One could apply the following equality in terms of molarity:

V_1M_1=V_2M_2

Whereas the subscript 1 accounts for the solution before the dilution and 2 after the dilution, therefore, the required volume of 6.00 M acid is:

V_1=\frac{V_2M_2}{M_1} =\frac{50.0mL*0.299M}{6.00M}=2.49mL

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3 years ago
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First, we need to compute the mass of oxygen found in 100 grams of saltpeter:
mass of oxygen = 100 - (mass of potassium + mass of nitrogen)
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Now, we can use cross multiplication to find the mass of oxygen in 328 grams saltpeter as follows:
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3 years ago
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If I heat a reaction then the rate will increase because the higher the temperature the faster the reaction.

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