1.3 Cell Structure and Function Flashcards
Move through the proteins…
Ions and water
No energy is required for this process to occur…
Passive Transport
When there is a difference in concentration of a particular particle on either side of the membrane it is called a…
Concentration Gradient
Particles move along the concentration gradient from ____ to ___ concentration until ____ is reached…
High
Low
Equilibrium
The net movement of particles along the concentration gradient is called…
Diffusion
The diffusion of water…
Osmosis
Water always flows from ____ to _____ until _____.
Hypotonic
Hypertonic
Isotonic
How the majority of materials are transported into cells…
Diffusion
Crucial for all cells to control….
Osmols
Never stop moving across a membrane…
Water molecules
Plenty of water in the plant cell, so cells are rigid and an the plant is stiff….
Turgid
Not enough water in the plant cell, so the plant is limp…
Flaccid
When the cell membrane rips away from the cell wall killing the plant cell…
Plasmolysis
Water’s ability to perform work while passing through the membrane…
Water potential
Requires the help of a Transport Protein and does not require energy to work…
Facilitated diffusion
Moves material against the concentration gradient and requires energy…
Transport
Diffuse across the wet phospholipid bi-layer…
CO2 and O2
Requires energy to occur and moves material against the concentration gradient…
Active transport
Activates the protein to grab and move molecules…
Energy from ATP by Phosphorylation (electrons can also provide energy)
Molecules too big for proteins to transport…
Large molecule transport
The process of moving molecules out of a cell…
Exocytosis
The process of moving materials into a cell…
Endocytosis
“Cell eating”…
Phagocytosis
“Cell drinking”…
Pinocytosis
