Cells Flashcards
(23 cards)
Define
Phospholipids
Made up of phosphate and 2 fatty acids
Define
Cell membrane
Regulated what enters and leaves a cell
Define
Organelle
Functioning unit of a cell
Define
Eukaryote
Organism whose cells have a nucleus
Define
Prokaryote
Organism whose cells don’t have a nucleus
Define
Endoplasmic reticulum
System of membranes
Define
Central vacuole
Stores water and nutrients for a cell
Define
Lysosomes
Break down large chemicals
Define
Chloroplasts
Contains chlorophyll for photosynthesis
Define
Golgi bodies
Synthesize and transport materials
Define
Mitochondria
Store and release energy
Define
Osmosis
Diffusion of water through selectively permeable membrane
Define
Equilibrium
Condition in which the concentration of a substance is equal through the space
Define
ATP
Main energy currency of cells
Define
Active transport
Transport of a substance across the cell membrane across the concentration gradient
Which organelle houses the cells DNA
Nucleus
Describe cell membrane
Double layer of phospholipids
What are short, hair-like structures found on cells called
Cillia
What organelle controls most functions of a eukaryotic cell
Nucleus
Which organelles are only found in plants
Cell wall, water vacuole, chloroplasts
What does smooth Endoplasmic reticulum lack
Ribosomes
Give an example of active transport
Sodium-potassium pump
Without the sodium-potassium pumps what would happen to a cell
Too much sodium and water would enter and cause the cell to swell or burst and it couldn’t transport sugars
