Cell Transport Flow Chart by Kelly Smith

TRANSPORT

kellysmith13 — 2024-10-11 18:25:43 UTC

The movement of molecules across the cell membrane

PASSIVE

kellysmith13 — 2024-10-11 18:26:58 UTC

molecules move from HIGH to low concentration.

"with the concentration gradient"

"down the concentration gradient"

(Simple) Diffusion

kellysmith13 — 2024-10-11 18:28:26 UTC

Small nonpolar molecules like gases move via diffusion

Osmosis

kellysmith13 — 2024-10-11 18:30:39 UTC

Water moves to "dilute the solute"

Water diffuses from high concentration to low concentration

Facilitated Diffusion

kellysmith13 — 2024-10-11 18:32:20 UTC

Requires proteins to move large molecules from high to low concentration

Channel Proteins

kellysmith13 — 2024-10-11 18:33:27 UTC

ACTIVE

kellysmith13 — 2024-10-14 15:44:34 UTC

Molecules move from low to HIGH concentration

"against the concentration gradient"

"up the concentration gradient"

Carrier Proteins

kellysmith13 — 2024-10-14 15:51:14 UTC

Protein must change its shape for the molecules to be transported

MAY require energy

-> Facilitated Diffusion - GLUT transporter protein moves glucose across the cell membrane from high to low concentration

-> Active Transport - Sodium-Potassium Pump (Na+ and K+) moves ions across the cell membrane from low to HIGH concentration.

Endocytosis

kellysmith13 — 2024-10-15 16:41:38 UTC

Transports large molecules from outside to inside the cell by pinching off part of the cell membrane to surround the incoming molecule(s).

The "bubble" of the cell membrane surrounding the incoming molecules is called a "vesicle"

"ENdocytosis" = "ENter cell"

3 Kinds:

Phagocytosis

Pinocytosis

Receptor-Mediated Endocytosis

Exocytosis

kellysmith13 — 2024-10-15 16:41:59 UTC

Transports large molecules from inside to outside the cell by the vesicle bonding to the cell membrane and then releasing the molecules out into the environment.

The "bubble" of the cell membrane surrounding the incoming molecules is called a "vesicle"

"EXodocytosis" = "EXit cell"

Vesicular Transport

kellysmith13 — 2024-11-19 21:16:02 UTC

2 Classes:

Endocytosis

Exocytosis

Receptor-Mediated

kellysmith13 — 2024-11-19 21:18:52 UTC

Interact with a specific protein to initiate vesicle formation

Pinocytosis

kellysmith13 — 2024-11-19 21:21:49 UTC

Engulfment of fluids into vesicles

Phagocytosis

kellysmith13 — 2024-11-19 21:23:57 UTC

Engulfment of solid particles into vesicles