Cell Structure Flashcards
Give the name for a cell with and without a nucleus
With - Eukaryotic
Without - Prokaryotic
Where are ribosomes made?
Nucleolus
Give the names of the central area of mitochondria and the projections into it
Matrix/Cristae
Give the names of the central area of chloroplasts, the membranes within it and the stacks of membranes
Stroma/Lamellae/Grana
What are the 2 types of ribosomes?
Eukaryotic 80s
Prokaryotic 70s
What are microvilli?
Folds in the membrane (of epithelial cells on the villi)
What are bacterial cell walls made from?
Murein/peptidoglycan
Which type of microscope gives the highest resolution and why?
Electron as shorter wavelength than light
Give the equation to work out magnification
Mag = image/actual
How many mm in a m, µm in a mm, nm in a µm, µm in a m?
1000, 1000, 1000, 1,000,000
How are the organelles of a cell separated after homogenisation
Centrifuged at increasing speeds
What is the name of the solid part at the end of tube and the liquid above?
Pellet/Supernatant
Give the order of organelle separation including chloroplasts
Nuclei, chloroplasts, mitochondria, lysosomes, endoplasmic reticulum, ribosomes
Why is the liquid kept ice-cold?
Prevent enzymes from lysosomes damaging organelles
Why is the liquid isotonic?
Prevent osmosis damaging organelles
What is the name for damage caused to the specimen in the process of making microscope slides?
Artefacts
