Bio & Biochem Quiz
20 questions · no time limit
0:00
FOUNDATIONAL CONCEPT 2: CELLS AND CELLULAR ORGANIZATION
Question 1 of 20
No time limit
Current
Answered
Flagged
Not seen
Neurons from a patient-derived line show reduced activity of a mitochondrial inner-membrane phosphate carrier. This carrier imports inorganic phosphate (Pi) into the mitochondrial matrix, where ATP synthase uses ADP and Pi to form ATP. Mitochondria are double-membrane organelles that generate ATP via oxidative phosphorylation; the matrix is the innermost compartment containing enzymes and mitochondrial DNA. When cells are stimulated to fire repeatedly, cytosolic Ca2+ rises and ATP demand increases. Compared with control neurons, the patient-derived neurons show earlier loss of membrane potential and increased lactate release.
Which outcome best exemplifies the role of mitochondria in this scenario?
YOUR PROGRESS
20
QUESTIONS
Ready when you are
Answer in any order. Your progress shows here as you go.
QUESTIONS
KEYBOARD
Pick an answer ABCD
Next question ↵→
Previous ←
Flag for review F
Answers save as you go · flagged questions come back at the end