Considering the Role of the Chemoreceptor in the Regulation of the Respiration

question 32

Multiple Choice

Considering the role of the chemoreceptor in the regulation of the respiration rate,the most important stimulus that induces changes in ventilation is:

• A)partial pressure of oxygen (PO₂)in venous blood.
• B)partial pressure of carbon dioxide (PCO₂)in arterial blood.
• C)partial pressure of oxygen (PO₂)in pulmonary capillaries.
• D)partial pressure of oxygen (PO₂)in systemic capillaries.

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Definitions:

Replication

The process by which genetic material or a biological entity reproduces or makes a copy of itself.

Thrifty Genotype Hypothesis

The proposition that certain genotypes predispose individuals to efficient fat storage for survival during times of food scarcity, which may predispose to obesity in environments with abundant food.

Positive Selection

A process in evolution where advantageous genetic mutations become more common in a population because they contribute to survival and reproduction.

Diabetes

A group of metabolic diseases characterized by high blood sugar levels over a prolonged period, resulting from defects in insulin production or action.