Scelta multipla
How does particle size affect a molecule's ability to transport across a cell membrane?
584
views
6. The Membrane
Passive vs. Active Transport
Scelta multipla
What are the two main types of transport mechanisms across cell membranes?
A
Osmosis and diffusion
B
Passive transport and active transport
C
Facilitated diffusion and endocytosis
D
Exocytosis and pinocytosis
Guida verificata passo dopo passo1
Understand that transport mechanisms across cell membranes are essential for maintaining homeostasis and allowing cells to acquire necessary substances and expel waste.
Recognize that there are two main categories of transport mechanisms: passive transport and active transport.
Passive transport does not require energy and relies on the concentration gradient. Examples include simple diffusion, facilitated diffusion, and osmosis.
Active transport requires energy, usually in the form of ATP, to move substances against their concentration gradient. Examples include endocytosis, exocytosis, and the sodium-potassium pump.
Differentiate between the examples of passive and active transport to understand how substances move across cell membranes in various biological contexts.
Video correlati
Pratica correlata
