B1-key Concepts In Biology Flashcards
What is the difference between magnification and resolution?
Magnification is How much an image is tham the actual object being observed
Resolution is the ability to distinguish two points .a high resolution means an image will be sharper and clearer
Comparing light and electroms microscopes
Magnification Resolution Type of radiation used Focused by Type of material that can be viewed Size Preparation and cost of material
Light microscope X1500 250nm Light Glass lenses Living abiotic Small and portable Cheap and easy
Electron microscope x500000 0.25 Electeons Electromagnets Dead/abiotic Large and static Difficult and expensive
What are the two primary types of cell
Prokaryotic and eukaryotic
What is prokaryotes?
Organisms that are one single prokaryotic cell
Does Prokaryotic have a nucleus
Is it a bacteria
Has no true nucleus
Bacteria
Does eukaryotic have a nuleus
Has a true nucleu
Fungi ,plant and animal cells
What is eukaryotes
Organisms made up of many eukaryotic cells
Aerobic respiration occurs in the ribosomes true or false
False
Plants cells are prokaryotic
True or false
False
Bacteria cells have a nucleus
True of false
False
All cells have cytoplasm
True or false
True
All cells have a cell wall
True or false
False
Animal cells dont have a cell wall
Flagellum roatate to allow some bacteria to move
False or true
True
Chromosomal and plasmid Dna are both circular
True or false
True