Bio 1
plasmodesma
Channels between plant cells that allow molecules to pass through
Sodium-potassium pump
a transport protein that uses atp to move sodium ion out and potassium ions into the cell
Flagella
tails
Hypertonic solution
a solute with a higher solute concentration; water moves out of the cell, causing it to shrink
Passive transport
The movement of substances across a membrane without energy, from high to low concentration
proton pump
a membrane protein that uses energy to pump protons out of the cell
SEM
Scanning electron Microscopy; it shows detailed 3d images of cell surfaces
Ribosome
A small structure that synthesizes proteins by mRNA.
Endomembrane system
a group of membranes and organelles that modify, transport, and package lipids and proteins
Contractile vacuole
a structure in freshwater protists that maintains osmotic balance by explaining water
Apoptosis
programmed cell death
Transport vesicle
a small vesicle that moves substances around inside the cell to the membrane
Facilitated diffusion
the process of helping molecules move across the cell membrane without energy
Centrosome
an organelle near the nucleus that organism microtubules and is critical during cell division for spindle formation
Glycolipid
a lipid with carbohydrate that helps with cell recognition and communication
turgid
The cell is full of water and firm, occurring in a hypotonic environment
Aquaporin
a membrane protein that facilitates the movements of water molecules across cell membranes
What is ECM
Extracellular matrix; a complex network of protein and carbohydrates that provides structural and biochemical support to surrounding cells
Co-transport diffusion
the simulations movement of two substances across the cell membrane
Integral protein
a protein embedded in the cell membrane that helps transport substances across the membrane
Endosymbiont
a tiny organism living with another organism in a mutually beneficial relationship
Actin
a protein that helps maintain cell shape, enables movement, and support intercellular structure
Membrane potential
the electric charge difference across cell membranes caused by ions
Isotonic solution
a solution with the same solute concentration as teh cell; there is no net water movement and the cell stayed the same size
Glycoprotein
a protein with a carbohydrate that aids in cell recognition and communication