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