cells & functions Flashcards
Prokaryotes
Lack a nucleus & membranous organelles
Eukaryotes
have a nucleus & membranous organelles
Cytoplasm
region of the cell outside the nucleus and inside the plasma membrane
Ribosome
- Links amino acids together-protein synthesis
-Formed by nucleous - 2 types: free floating, or fixed (rough er)
Centriole
- movement of chromosome during cell division
- organize cytoskelton
made out of microtubes - not found in red blood cells
-doesn’t go through mitosis
Cytoskeleton
functions as the cell’s skeleton
microfilaments
- strength and support
-moves organelles and materils
-cell movement (change shape)
microtubles
- strength and support
-moves organelles and materils
-cell movement (change shape)
nucleus
- control of metabolism
-storage and processing of genetic infromation
-control of protein synthesis
Nucleolus
-Dense region in nucleoplasm containing Dna and RNA
Mitochondria
-Double Membrane with inner membrane folds endosina (important and metabolic)
-makes ATP (for cell energy)
Endoplasmic Reticulum (ER)
-netowrk of channwla extending throughout the cytoplasm
Rough ER
-has ribosomes bound to membranes
-packages newlt synthesised proteins
-tansports them to the golgi
Smooth ER
-lacks attatched ribosomes
-converts glucose inro glycogen in liver
-synthesis of hormones
Golgi apparatus
-stack flattened membranes maintaining chambers
-renws and modifies plasma membrane
-produces lysosomes and other vesicles
Lysosome
-destruction of bacteria performs essential cleanup and recycling function inside a cell
-leukocytes (WBC) contain for phagocytosis
peroxisome
-produces H202 as rhe enzymes breakdown fatty acids
vesicle
storage of material (for transport or secrection)
microvilli
when plasma membrane folds on itself
cillia
moves material in our body not for cell movement
