Multiple Choice
How would you expect an H+ ion to move out of the cell if [H+] inside the cell is lower than extracellular fluid?
23. Lipids
Membrane Transport
Struggling with GOB Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In oxidative phosphorylation, H+ ions from the intermembrane space of mitochondria to the mitochondrial matrix, which type of membrane transport is this?
A
Simple diffusion
B
Facilitated diffusion
C
Active transport
D
None of these
Verified step by step guidance1
Understand the context: Oxidative phosphorylation is a process that occurs in the mitochondria, where ATP is produced using energy derived from the electron transport chain.
Identify the movement of H+ ions: In this process, H+ ions move from the intermembrane space to the mitochondrial matrix.
Consider the concentration gradient: H+ ions are moving against their concentration gradient, as they are typically more concentrated in the intermembrane space than in the matrix.
Determine the type of transport: Since the ions are moving against their concentration gradient, this process requires energy, which is characteristic of active transport.
Conclude the type of transport: The movement of H+ ions in oxidative phosphorylation is an example of active transport, as it involves the use of energy to move ions against their gradient.
1:21mWatch next
Master Membrane Transport Concept 1 with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Membrane Transport practice set
Problem sets built by lead tutorsExpert video explanations