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Exercise causes cells to increase the rate at which they undergo cellular respiration. Remember that the summary equation for cellular respiration is:

[tex]\[ \text{1 glucose} + 6 O_2 \rightarrow 6 CO_2 + 6 H_2O + 36-38 \text{ATP} \][/tex]

During exercise, more oxygen and glucose are delivered to cells so that more ATP can be made and muscles can contract at a rate that keeps up with the exercise performed. When the rate of ATP production increases, the amount of [tex]\( CO_2 \)[/tex] produced also increases.

This will increase the \_\_\_\_\_\_ of the blood.

A. It won't change the blood pH
B. Acidity
C. Alkalinity


Sagot :

Sure, let's answer the given question step-by-step.

1. Understand Cellular Respiration and CO2 Production:
The equation for cellular respiration is:
[tex]\[ \text{1 glucose} + 6\ O_2 \rightarrow 6\ CO_2 + 6\ H_2O + 36-38\ \text{ATP} \][/tex]
During exercise, the rate of cellular respiration increases to provide more ATP for muscle contraction. Consequently, more [tex]\( CO_2 \)[/tex] is produced.

2. Recognize the Impact of [tex]$CO_2$[/tex] on Blood:
[tex]\( CO_2 \)[/tex] dissolves in blood to form carbonic acid.
[tex]\[ CO_2 + H_2O \rightarrow H_2CO_3 \][/tex]
Carbonic acid (H2CO3) dissociates into hydrogen ions (H+) and bicarbonate ions (HCO3-), increasing the concentration of hydrogen ions in the blood.

3. Understand Blood Acidity:
The increase in hydrogen ion concentration leads to a decrease in blood pH, thereby increasing its acidity. It is important to understand that an increase in hydrogen ions (H+) makes the blood more acidic.

Therefore, with more [tex]\( CO_2 \)[/tex] being produced during exercise and forming carbonic acid, the correct term to fill in the blank is "Acidity."

The final completed statement should read:

"This will increase the \textbf{acidity} of the blood."