Ch. 20 Viruses Pt.2

Question 1

in a bacteria

Answer 1

the cell membrane is surrounded by a cell wall with peptidoglycan

Question 2

in a archae

Answer 2

the cell wall lacks peptidoglycan

Question 3

bacilli

Answer 3

rod shaped, tic tac

Question 4

cocci

Answer 4

spherical, circles

Question 5

spirilla

Answer 5

spirals

Question 6

facultative anaerobe:

Answer 6

can function with or without oxygen

Question 7

endoscopes are

Answer 7

thick internal wall that encloses the DNA making it able to survive under harsh conditions

Question 8

conjugation is

Answer 8

the exchange of genetic information across a bridge

Question 9

decomposer-

Answer 9

decomposing of dead organism supplies, raw materials and is used in industrial sewage treatment

Question 10

nitrogen fixation-

Answer 10

converters of nitrogen into useful forms, and gives plants the nutrients to grow

Question 11

bacterial diseases-

Answer 11

can cause disease by destroying living cells, or by releasing chemicals, called toxins that upset homeostasis (pathogen)

Question 12

ways to remove and kill bacteria

Answer 12

1. physically removing dislodging(washing hands)
2. disinfectants(chemicals kill bacteria)
3. food storage (low temps slow growth)
4. sterilization (heating to 100 C and higher)
5. food processing (boiling,frying,heating)

Question 13

emerging disease

Answer 13

unknown disease that appears in a population for the first time or well known disease that becomes hard to control

Question 14

superbugs

Answer 14

created when bacteria had become resistant to groups of antibiotics because they have transferred drug resistant genes

Question 15

prions

Answer 15

particles of protein that cause disease

Question 16

prions are

Answer 16

improperly folded proteins

Question 18

prions do not contain

Answer 18

DNA or RNA

Question 19

What do prions do?

Answer 19

they accumulate in the nerve cells and causes cell disease functioning which leads to death