prokaryotic and eukaryotic cells Flashcards
what’s the difference between prokaryotic and eukaryotic cells?
eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not
3 examples of eukaryotic cells
plants, animals, fungi
3 examples of prokaryotic cells
bacteria, archaea, and cyanobacteria
define passive transport and diffusion
movement inside and outside the plasma membrane
what two internal proteins are used in active transport? Explain how and why they are used
carrier and channel proteins are always active transport
explain why it is advantageous to have a large surface area to volume ration
small cells- we want small as possible so that diffusion happens quicker
large concentration of sugar outside the cell and a low concentration Inside the cell what can we expect to happen, assuming the molecules are small enough for passive transport
the water is going to rush outside cell to dilute it, if water is moving out of the cell it is described as hypertonic
what is the difference between endo and exo cytosis?
Endo is bringing things into the cell and exo is things exiting,
list the function of the organelles of a cell.
Cell wall, Mitochondria, Nucleolus, Membrane, Lysosomes, Ribosomes, Endoplasmic reticulum
What is the role of Carbohydrates
attach to fatty acid provide food and energy
What is the role of Proteins
important for many things including shape, support, organisation and waste clean up
What is the role of Cholesterol
maintain the integrity and fluidity of cell membranes