chapter 24 final Flashcards Preview

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Flashcards in chapter 24 final Deck (15):
1

the earliest known group of living organisms on earth was

bacteria

2

bacteria are the only organisms characterized as

prokaryotic

3

bacteria can be classified according to their

type of cell walls
methods of obtaining energy
gram staining characteristics

4

gram positive bacteria are stained

purple

5

difference between gram positive and negative

gram negative bacteria do not respond to many antibiotics

6

the cytoplasm of bacteria

contains a single molecule of DNA

7

one difference between human body cells and bacterial cells is that bacterial cells have

a cell wall made of peptidoglycan

8

structures found in a eukaryotic cell but not in a bacterial cell are

cell nuclei
chromosomes
membrane bound organelles

9

bacterial cells

have both a cell membrane and cell wall

10

cell organelles that e coli and other bacteria have in common with eukaryotes are

mitochondria

11

autotrophic eukaryotes and autotrophic prokaryotes differ in that autotrophic eukaryotes

can only use photosynthesis to manufacture their food

12

bacteria need a presence of water to

grow

13

bacteria cells such as E. coli transfer pieces of genetic material in a process called

conjugation

14

during the process of conjugation

one bacterium transfers DNA to another

15

a pathogen is an agent that is

harmful to living organisms