Cells/Organelles Flashcards
Cell membrane
contains the cytoplasm of the cell
regulates materials entering and exiting the cell
made up of a hydrophilic lipid bilayer
coated by the glycocalyx
glycocalyx
a carbohydrate-enriched coating that covers the outside of many eukaryotic cells and prokaryotic cells, particularly bacteria
cytoplasm
contents of the cell, jelly like fluid
contains the cytosol liquid + all the organelles
space for dissolved molecules to move through
is basic and positively charged
acidophilic: stains pink with eosin which is an acidic dye
nucleus
"brain" of the cell generates mRNA to direct protein synthesis contains DNA and the nucleolus acidic, negatively charged basophilic, stains blue with hematoxylin
nucleolus
produces ribosomes
located inside the nucleus
negatively charged, acidic
basophilic, stains blue with hematoxylin
nuclear membrane
contains the chromatin
regulates what enters and exits the nucleus
phospholipid bilayer membrane
pores allow for communication
mitochondria
the power house of the cell, provides energy
converts glycogen to glucose
ribosomes
synthesize proteins from mRNA
found both in the rough endoplasmic reticulum and free floating in the cytoplasm
produced in the nucleolus
large subunit is 2RNA+49 proteins, small subunit is 1RNA+33 proteins
acidic, basophilic, stains blue with hematoxylin
golgi complex/apparatus
modifies molecules from the endoplasmic reticulum
adds elements to finish off proteins
sorting and packaging
rough er
transport, managing, and packaging proteins produced by the ribosomes embedded in it
has ribosomes, granular
smooth er
transport, lipid synthesis and storage
no ribosomes, agranular
carbohydrate metabolism, calcium regulation
vacuoles
dump materials outside of the cell
storage of lipids
may contain waste
lysosomes
digest waste from the cell
“garbage men” made in the golgi complex
contain wear and tear pigment
microtubules
give structure to the cell, form the cytoskeleton
act as highways for transport of materials throughout the cell
made up of tubulin molecules
vesicles
transport materials within the cell, temporary packages, especially between the endoplasmic reticulum and the golgi complex