diffusion through the membranes
bulk flow
transport via vesicles or caveolae
Active transport is the type of transport mechanism that goes against the concentration gradient.
The primary transport mechanism in intestinal cells is active transport, utilizing carrier proteins to move nutrients against a concentration gradient into the cell. This mechanism allows for the absorption of essential nutrients like sugars and amino acids from the intestine into the bloodstream for distribution throughout the body.
Symporters are active transport mechanisms that move molecules across a cell membrane using energy from ATP or an electrochemical gradient.
Capillaries are only one cell layer thick, which allows for the exchange of nutrients and gases between the blood and tissues. This thin structure promotes efficient diffusion and transport across the capillary walls.
Axonal transport is mainly driven by molecular motor proteins, such as kinesin and dynein, which move along microtubules within the axon. Kinesin transports cargo towards the axon terminal, while dynein transports cargo towards the cell body. These motor proteins power the movement of various organelles, vesicles, and other cellular components along the axon.
the cocoon.
Diffusion
bike
Passive transport is the cellular transport mechanism. This all depends on the blood pressure.
Active transport is the type of transport mechanism that goes against the concentration gradient.
The liquid was pulled into the small tube by capillary action.
Diffusion
Simple diffusion
transport absortion
Capillary in the villi are used to absorb the digested food and transport the food the the destination cell.
Transport Nutrients
Active Transport