a. The pH of the matrix increases is the correct answer.
Explanation:
When electrons flow along the electron transport chains of mitochondria,The pH of the matrix increases because the electron transport chain is forming a gradient of hydrogen ions in respects to the matrix and the inner membrane surface of the mitochondria.
The concentration of hydrogen ion outside is higher as compared to the matrix. Thus due to higher concentration of hydrogen ions outside creates lower pH and the pH of the matrix increases.
The answers for 1 are….. a) The process is called glucose homeostasis. b) i) The hormone is Glucagon. ii) The organ is the pancreases. iii) The compound is is pyruvate? Hope this helps, please give me brainliest:))