vocabulary cellular processes

movement of particles across a membrane from an area of lower concentration to an area of higher concentration; requires energy.

• Insulin

• Antibodies

• Active transport

• Facilitated diffusion

process of diffusion in which molecules pass across the membrane through cell membrane channels.

• Vesicle

• odium-potassium pump

• Antibodies

• Facilitated diffusion

 movement of particles from an area of higher concentration to an area of lower concentration

• Diffusion

• Cell signaling enzymes

• Exocytosis

• Hemoglobin

• Insulin

its ability to differentiate between different types of molecules, only allowing some molecules through while blocking others.

• Cell membrane

• Osmosis

• Selectively permeable membrane

• Cytoplasm

• Membrane-bound

Homeostasis

•  movement of particles across a membrane from an area of lower concentration to an area of higher concentration; requires energy

•  chemical produced in one part of an organism that affects another part of the same organism

•  regulation of an organism’s internal environment in order to maintain conditions suitable for survival

• in eukaryotic cells, all cellular contents outside the nucleus; in prokaryotic cells, all of the cells’ contents

Antibodies

• transmembrane proteins that actively move ions against the gradient of concentration across membranes

• atom that has a positive or negative charge

• A protein made by plasma cells (a type of white blood cell) in response to an antigen

• the process of moving materials from within a cell to the exterior of the cell. 

transmembrane proteins that actively move ions against the gradient of concentration across membranes

• Cilia

• Protein pump

• Endocytosis

• Hemoglobin

 diffusion of water from an area of higher concentration to an area of lower concentration.

• Concentration gradient

• Facilitated diffusion

• Hormone

• Osmosis

 movement of particles across a membrane from an area of higher concentration to an area of lower concentration; does not require energy.

• Passive transport

• Vacuole

• Sodium-potassium pump

• Membrane protein

thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell.

• Membrane protein

• Hormone

• Membrane-bound

• Cell wall

• Cell membrane