Lecture 2 - Cells Flashcards
What contains prokaryotic cells?
Bacteria + Archaea
What Contains Eukaryotic cells?
Plant + Animal
Name me 5 parts of a microscope
1 - Eye piece lens/ Ocular lens
2 - Turret - rotates objective lenses
3 - Objective lense - different magnifications
4 - Stage
5 - Condenser - varies light intensity
CM to MM ?
x 10
MM to Micro meters ?
x 1,000
Micro M to Nano meters ?
x 1,000
CM to Micro M ?
x 10,000
CM to Nano M ?
x 10,000,000
Nano M to Micro M ?
Divide by 1,000
Micro M to MM ?
Divide by 1,000
MM to CM ?
Divide by 10
Resolution definition ?
How detailed the image is
How well a microscope can distinguish between 2 points that are close together
Magnification Triangle
I = A x M
M = I/A
A = I/M
Field of view
FOV high = (FOV low x Mag low)
—————————–
Mag High
What is Cytosol
Cytoplasm minus the organelles
Compare and contrast eukaryotes vs prokaryotes
multicellular - unicellular
10-100 MicroM - 0.1-5 MicroM
Linear DNA - circular DNA
80s ribosomes - 70s ribosomes
plants cell wall is cellulose
fungi cell wall is chitin
-
prokaryote wall is murien
also has no membrane bound organelles
-
Eukaryotes have histones, the DNA is long and animal cells don’t have cell walls
General Knowledge
In a cell there’s chromosomes and in chromosomes there’s DNA
how do you work out Total Magnification
Total Magnification = Objective Lens x Eye Piece Lens
All cells have four of the following five, which is the incorrect answer?
Mitochondria
Cell (plasma) membrane
Cytosol
Ribosomes
Chromosomes
Mitochondria
What would a bacterial cell NOT have?
Mitochondria
What is the oldest type of cell
Prokaryote
ALL cells have 4 main structures
Cell Membrane, Ribosome, Cytosol, chromosome
What is the name of the tail like structure to help movement in bacteria cells?
Flagellum
Where does aerobic respiration occur in the cell?
Mitochondria
