Question

part iii - conceptual comprehension questions a. multiple choice (circle the correct answer) 1) which system detects the change in ph and signals other systems to respond? a) circulatory b) nervous c) digestive d) musculoskeletal 2) when hydrogen ion levels increase in the blood, ph drops. which system helps correct this by increasing breathing rate to remove carbon dioxide? b) respiratory c) immune d) reproductive e) endocrine 3) the kidneys respond to high hydrogen ion concentration by: c) releasing glucose into the blood d) reabsorbing bicarbonate and excreting hydrogen ions e) storing excess oxygen f) sending electrical signals to muscles which system fights infection that arose due to low ph in the reproductive system? a) endocrine b) immune c) musculoskeletal d) digestive

Explanation:

1. The nervous system detects changes in pH and signals other systems. It is responsible for sensing and communicating internal environment changes.
2. The respiratory system helps correct blood - pH drops by increasing the breathing rate to remove carbon dioxide. Carbon dioxide levels are related to blood pH, and the respiratory system can adjust them.
3. The kidneys respond to high hydrogen ion concentration by reabsorbing bicarbonate and excreting hydrogen ions. This is part of the renal regulation of acid - base balance.
4. The immune system fights infections, including those due to low pH in the reproductive system. It defends the body against pathogens.

Answer:

1. b) Nervous
2. b) Respiratory
3. d) Reabsorbing bicarbonate and excreting hydrogen ions
4. b) Immune