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3 years ago

What would happen if someone stabbed your leg with a syringe full of calcium and injected the calcium directly into your muscle?

Biology

1 answer:

Studentka2010 [4]3 years ago

5 0

Answer:

Cross-bridges would form in the absence of an action potential from a motor neuron.

Explanation:

The injected calcium ions would bind to troponin. Troponin would make tropomyosin move away from the myosin-binding sites on actin. The presence of free binding sites on the actin would be followed by the contraction cycle. This would include hydrolysis of ATP to energize myosin heads and binding of these heads to actin to form cross-bridges. Therefore, cross-bridge formation would occur without any action potential if calcium ions are injected directly into the muscle.

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In science, theories____?

forsale [732]

Answer:

have limited explanatory power

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3 years ago

Plasma prevents the loss of blood by causing clotting.<br> true or false

liberstina [14]

This is false. The part of blood that causes clotting are the platelets, otherwise known as thrombocytes.

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3 years ago

Culturing of the sputum resulted in the growth of distinct colonies on the medium, and the technician informs you that further i

Irina-Kira [14]

Answer:

The correct answer is: B. pure culture.

Explanation:

Sputum sample contains varied types of bacteria.
When this sample is cultured on a growth medium all the different types of bacteria grow on it.
A single distinct colony of bacteria is formed from by multiple divisions of a single bacterial cell.
In the given growth medium distinct colonies of bacteria are formed.
Each such colony is formed from a single bacteria.
When such a single distinct colony is inoculated in a separate medium and bacteria is grown in that, then a Pure culture of bacteria is generated.
A Pure culture can be defined as such a culture which is comprised of single type of bacterial cell, formed from a single bacteria.

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3 years ago

Identify the products of photosynthesis. carbon dioxide and glucose glucose and oxygen carbon dioxide and water light energy and

Eva8 [605]

Answer:

0.17 mole of glucose is formed.

Explanation:

Step 1:

The equation for the reaction. This is given below:

CO2 + H2O —> C6H12O6 + O2

Step 2:

Balancing the equation.

The equation can be balanced as follow:

CO2 + H2O —> C6H12O6 + O2

There are 6 atoms of C on the right side and 1 atom on the left side. It can be balance by putting 6 in front of CO2 as shown below:

6CO2 + H2O —> C6H12O6 + O2

Therefore are 12 atoms of H on the right side and 2 atoms on the left side. It can be balance by putting 6 in front of H2O as shown below:

6CO2 + 6H2O —> C6H12O6 + O2

There are a total of 8 atoms of O the right side and a total of 18 atoms on the left. It can be balance by putting 6 in front of O2 as shown below:

6CO2 + 6H2O —> C6H12O6 + 6O2

Now the equation is balanced.

Step 3:

Determination of the number of mole of glucose (C6H12O6) produced by 1 mole of water.

This is illustrated below:

6CO2 + 6H2O —> C6H12O6 + 6O2

From the balanced equation above,

6 moles of H2O produced 1 mole of C6H12O6.

Therefore, 1 mole of H2O will produce = 1/6 = 0.17 mole of C6H12O6.

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3 years ago

How does the United States limit the power of its government? i. Government officials are subject to the law. ii. Government off

makvit [3.9K]

Answer:

ii and iii

Explanation:

4 0

2 years ago