cell division and organelles Flashcards
What is cilia ?
large hairlike projections that move substances over cell surface
microvilli
numerous, tiny, thin plasma membrane folds that increases surface area
What are the three parts to a cell?
nucleus, cytoplasm, plasma membrane
what does the plasma membrane consist of and what is the function?
Double layer of phospholipids, protein (some are attached and some are floating), glycocalyx function: Gate keeps
what is Glycocalyx
carbs that let other cells know kts not foreign (cell recognition)
Mitochondria
makes ATP, powerhouse of the cell ,contains own DNA called mitochondrial DNA (MtDNA)
Function of ribosomes
protein synthesis (production)
function of free ribosomes
makes protein for cell itself
Ribosomes attached to rough er function?
make proteins for plasma membrane or to be exported outside of cell
rough endoplasmic reticulum function?
Synthesizes and distributes proteins for plasma membrane
What are lysosomes and their function?
circle structure containing digestive enzymes that get rid of waste (garbage men)
What is endoplasmic reticulum and what is its function?
network of tubules to transport and synthesize material
What is Tay Sachs disease?
lysosomal enzymes missing or dysfunctional causing a buildup of waste in cells leading to nerve deterioration. Death by 4-6
smooth endoplasmic reticulum function?
synthesizes lipids, steroid hormones, and detoxifies drugs and alcohol (prominent in liver)
What are centrioles?
Rod shaped structures involved in cell division