ANIMAL PHYSIOLOGY
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Increasing the body temperature by shivering
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Increasing glucose levels in the blood
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Breathing more deeply and frequently
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Decreasing the heart rate
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Detailed explanation-1: -The carbonic acid causes the blood pH to become more acidic. When the blood pH becomes too acidic, chemoreceptors in the brain instruct the body to react and maintain homeostasis in blood pH.
Detailed explanation-2: -As levels of CO2 in the blood begin to rise, the body can respond through hyperventilation or hypoventilation, respectively. The CO2 that is bound to hemoglobin forms a carbamino compound. In circumstances where the CO2 and H+ concentrations are high, the affinity of hemoglobin for O2 is decreased.
Detailed explanation-3: -As carbon dioxide accumulates in the blood, the pH of the blood decreases (acidity increases). The brain regulates the amount of carbon dioxide that is exhaled by controlling the speed and depth of breathing (ventilation).
Detailed explanation-4: -When CO2 is dissolved in water, a part of it reacts with water to become carbonic acid (H2CO3). It is the hydrogen ions present in carbonic acid that make water acidic, lowering the pH.
Detailed explanation-5: -Carbon dioxide can dissolve in water and then reacts with water to form carbonic acid. Since the acid then dissociates into carbonate ions and hydrogen ions and eventually forms H30+ ions, it follows that an increase in CO2 will cause a decrease in pH because the solution is getting more acidic.