Cell Anatomy Flashcards
Smooth ER
Cholesterol and lipid synthesis/detoxification
Rough ER
Synthesis of polypeptides (protein)
Mitochondria
Powerhouse of cell
Can multiply independently
Ribosomes
RNA is translated into protein
Prokaryote vs eukaryote
Pro = microscopic single cell organism that does not have a defined nucleus
Euk = normal cell with nucleus
What is plasmalemma a fancy word for?
Cell membrane
How is the phospholipid bilayer arranged in cell membrane?
Hydrophobic tails inside
Hydrophillic heads at inner and outer surfaces
Site of ribosome production?
Nucleolus
Where are the 3 different types of RNA synthesised?
Nucleus
- mRNA
- tRNA
Nucleolus
- rRNA
Cytoskeleton is comprised of microfilaments, intermediate filaments and microtubules.
What ones are composed of actin?
What ones are composed of tubulin?
Microfilaments = actin
Microtubules = tubulin
What is the function of the Golgi apparatus?
Transport vesicles arrive at Golgi from SER
Modifies and packages macromolecules from SER
What is the inner layer of the mitochondria called
Cristae
What is the purpose of lysosomes?
Enzymes involved in intercellular digestion
Involved in phagocytosis
What junction prevents diffusion?
Tight/occluding junctions (found in BBB barrier)