The movement of water across cellular membranes through aquaporins is known as? (1 point)
endocytosis
simple diffusion
active transport
osmosis
Someone please help me like I’m begging you I am literally begging you this is unit nine lesson two for the biology exam somebody please help me
i put down simple diffusion
the answer is osmosis
The movement of water across cellular membranes through aquaporins is known as osmosis.
To understand why this is the correct answer, let's break down each option:
1. Endocytosis: Endocytosis is a process by which cells engulf external substances by forming a vesicle around them and bringing them into the cell. It does not involve the movement of water across cellular membranes.
2. Simple diffusion: Simple diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration, without the need for a membrane or any other special proteins. While simple diffusion can occur with water molecules, it is not specific to membrane channels like aquaporins.
3. Active transport: Active transport is the movement of molecules across a membrane against their concentration gradient, requiring the expenditure of energy (usually in the form of ATP). This process is not specific to water movement through aquaporins.
4. Osmosis: Osmosis is the process of water moving across a semipermeable membrane to balance the concentration of solutes on either side. Aquaporins are specialized channel proteins that allow water to move rapidly through the membrane. Therefore, the movement of water through aquaporins is specifically referred to as osmosis.
In conclusion, the correct answer is osmosis.