Practice question
Question
A substance is transported across the plasma membrane from a region of lower concentration to a region of higher concentration. Which statement best describes this process?
Explanation
Movement against a concentration gradient, from lower to higher concentration, is active transport. It is an energy-dependent process in which ATP is utilised; the Na+ /K + pump is an example.
Related blogs
Guides and insights connected to this topic
Gene - Definition, Structure, Types, Regulation, Mutations, Inheritance and Gene Therapy
A gene is a DNA segment coding for RNA or protein, the basic hereditary unit. Covers gene structure, types, regulation, mutations, inheritance patterns, and therapeutic
Cell: The Building Block of Life Notes - Structure, Organelles, Division and Cell Theory
Explore the blog post 'Rest' covering goo time in a concise read.
Neural Control and Coordination Biology Notes - Neuron Structure, Nerve Impulse, Synapse, Brain, Reflex and Sensory Organs
Explains neuron anatomy, types, axon variations, nerve impulse transmission, synapses, brain and reflex pathways.
Discussion
Comments
Please log in to join the discussion.
Login to commentNo comments yet. Be the first to start the discussion.