Cell structure Flashcards
(18 cards)
Do prokaryotic cells have internal membranes?
No
What type of ribosomes do eukaryotic cells have?
80S
Can prokaryotic cells be multicellular?
No
Which type of cells can have branched fatty acids as their cell membrane?
Prokaryotic cells
What do all cells have? Name 3 structures minimum
Possible answers: Plasma membrane, Cytoplasm, Ribosomes, Double-stranded DNA genome, Organelles
True or False? All prokaryotic cells’ cell wall contain peptidoglycan
False, only some cells not all
Are 70S ribosomes attached to membranes or free in the cell?
They are all free in the cell
Are 80S ribosomes attached to membranes or free in the cell?
Some are attached to membranes, others are free
True or false? All cells have organelles
True
In eukaryotic cells, ester linkages attach unbranched fatty acids to what type of glycerol?
D-glycerol
In some prokaryotic cells, ester linkages attach branched fatty acids to what type of glycerol?
L-Glycerol
What is the purpose of membrane-bound organelles in eukaryotic cells?
They allow functions to be compartmentalized in different areas of the cell
How do prokaryotic cells reproduce?
Asexually (binary fission)
What do eukaryotic cells have that prokaryotic cells lack? Name 3 structures minimum
Membrane-bound nucleus, membrane-bound organelles, rod-shaped chromosomes, 80S ribosomes
What are the two processes from which a nucleus originates?
Endosymbiosis and infolding
Endosymbiosis is a process by which a symbiotic organism lives inside another. It is the probable source of origin of which organisms or structures? Name at least 2
Possible answers: Mitochondria, nucleus, chloroplasts, plastids
What is one good way for a cell to become more efficient?
Division
How can one tell if a cell is more efficient than another just by looking at them?
Larger cells are less efficient
