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Lera25 [3.4K]
3 years ago
15

When measuring for pH, you are measuring for the presence of these ions?

Biology
1 answer:
Mumz [18]3 years ago
6 0

Answer:

Hydrogen ions

Explanation: pH is the concentration of hydrogen ions (H+) in a given solution. A pH of 1 means there are a lot of hydrogen ions and a pH of 14 means there is a very small concentration if them.

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Marat540 [252]

Your answer would be Water. :)

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8 0
3 years ago
During exercise, venous return of blood to the heart increases. based on your knowledge of starling's law, what would happen to
trapecia [35]

Answer:

The stroke volume of the heart will also rise since exercise is the process where heart is working with great internal pressure or we can say it is in a state of being distended, this ultimately will cause a greater strength of contraction.

This is just in accordance with Stroke’s law that states that stroke volume of the heart increases if the volume of blood in the ventricles, before contraction if all other factors remain same or unchanged. When a large amount of blood rushes in the ventricle, it stretches the muscle fibers of heart that ultimately causes a rise in the force of contraction.  

Significance:

This actually helps in the synchronization of output from heart with arterial blood supply, venous return and humoral length without regulating or producing any other changes in the body.


6 0
3 years ago
The antigens have a specific shape that determines with which white blood cell or antibody it will interact with. What other mol
Leokris [45]

Answer:

The correct answer is: the antibodies' shape.

Explanation:

<u>Antibodies are proteins called immunoglobulins that serve the immune system by responding to a specific antigen and generating the proper counter to fight it. </u>

Each antibody consists of four polypeptides that form a "Y" shaped molecule. The Y shape is given by two heavy chains and two light chains.

<u>The tips of the Y are composed of 110-130 amino acids that vary greatly among other antibodies. This gives the antibody its </u><u>specificity</u><u>.</u>

4 0
3 years ago
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