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Bacteria Review '22-23

Last updated 15 days ago

8 questions

Required

7

Required

1

Required

1

1

Required

1

Required

5

Required

4

Required

5

Question 1

1.

Draggable item		Corresponding Item

Question 2

2.

Cell parts (organelles) found in bacteria (and all other cells also!) that make proteins  _______ (no CAPS)

Question 3

3.

Small loop of DNA that bacteria can copy and share with other bacteria during conjugation _______ (no CAPS)

Question 4

4.

Process by which bacteria reproduce - literally translates into "split into 2 pieces  _______ (no CAPS)

Question 5

5.

Which statement does NOT describe what is happening or true about the process in the diagram

it is called conjugation

it involves a bacterium making a copy of a plasmid and giving it to another bacterium

it slows down the spread of antibiotic resistance

bacterial plasmids frequently carry genes for antibiotic resistance.

Question 6

6.

Picture 1 below is the starting population of the bacteria ... Picture 2 (below picture 1) is the population on day 9 - 1 day after the person stopped taking the antibiotic on day 8. The person was supposed to take the antibiotic for 14 days. However, the person took the antibiotic for only 8 days and then stopped. Explain what has happened to the bacterial population and why it has happened! Focus on what happened between day 1 and day 8 and then between day 9 and day 15.

Question 7

7.

Question 8

8.

Why do the 3 behaviors below lead to the creation of antibiotic resistance?

2

cell wall

7 (majority of bacteria genome)

cell membrane

1

ribosome

6 (helps bacteria stick to surfaces and do conjugation)

nucleoid/bacterial chromosome

10

flagellum

9 (makes proteins)

pilus

8 (extra small loop of DNA)

plasmid

Select all correct descriptions based on these images showing the speed of bacteria population growth when the bacteria have "perfect" conditions for growth and reproduction

The number of bacteria is doubling very quickly.

The bacteria are (almost) identical/clones of each other.

The bacteria may occasionally make a copying error - a mutation

Over 24 hours the bacterial population will grow into the millions

Over 24 hours the bacterial population will grow into the hundreds

After the population, doubles for 48 hours, it will start to decrease even if there is plenty of nutrients and space to grow