chapter 24 final

Question 1

the earliest known group of living organisms on earth was

Answer 1

bacteria

Question 2

bacteria are the only organisms characterized as

Answer 2

prokaryotic

Question 3

bacteria can be classified according to their

Answer 3

type of cell walls
methods of obtaining energy
gram staining characteristics

Question 4

gram positive bacteria are stained

Answer 4

purple

Question 5

difference between gram positive and negative

Answer 5

gram negative bacteria do not respond to many antibiotics

Question 6

the cytoplasm of bacteria

Answer 6

contains a single molecule of DNA

Question 7

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

Answer 7

a cell wall made of peptidoglycan

Question 8

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

Answer 8

cell nuclei
chromosomes
membrane bound organelles

Question 9

bacterial cells

Answer 9

have both a cell membrane and cell wall

Question 10

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

Answer 10

mitochondria

Question 11

autotrophic eukaryotes and autotrophic prokaryotes differ in that autotrophic eukaryotes

Answer 11

can only use photosynthesis to manufacture their food

Question 12

bacteria need a presence of water to

Answer 12

grow

Question 13

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

Answer 13

conjugation

Question 14

during the process of conjugation

Answer 14

one bacterium transfers DNA to another

Question 15

a pathogen is an agent that is

Answer 15

harmful to living organisms