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BIOL 1010 Ch. 3 Study Guide

Terms in this set (46)

The area around the penicillin mold where bacteria cannot grow is called ________________________________________
the zone of inhabitation (penicillin prevents future cell walls from forming, then cells get flushed with water and explode. This prevents future reproduction of the bacteria)
Chemicals that can slow or stop the growth of bacteria are referred to as ______________
antibiotics (only work on prokaryote cells)
Antibiotics are often naturally produced by __________________________
living organisms
Antibiotics kill bacteria without harming _________________ or _____________________
human, human host
All living things are made of ________________________
cells
New cells come from the division of a ________________________________
preexisting cell
Different cells have different __________________ and ________________________
structures, functions
Cells which lack internal membrane-bound organelles are called _____________________
prokaryotes
Cell which possess membrane-bound organelles are called _________________________
eukaryotes
Prokaryotic and eukaryotic cells BOTH have:
____________________________ ________________________________
____________________________ ________________________________
cell membrane, ribosomes, cytoplasm, DNA
ONLY eukaryotic cells have:
_____________________________ _______________________________
a nucleus, organelles (like organs, carries out functions internally)
ONLY prokaryotic cells have:
______________________________ ______________________________
* ______________________________
DNA floating freely in cytoplasm (no organized nucleus), cell wall, no organelles
Antibiotics target ____________________________
prokaryotic cells
What do antibiotics do to prokaryote cells? _____________________________________
weaken cell walls
What does the weakened cell wall allow to happen? __________________________________________________________________
water fills the cell until it bursts
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