Lab Midterm

Question 1

How are the 3-D portions of this object able to communicate with the cells living on the surface?

A) Subcutaneous fascia
B) Chemical signals
C) DNA
D) Microglia

Answer 1

Correct Answer:
B) Chemical signals

Question 2

These colors represent:

A) Nothing pertaining to the 3-D printing
B) DNA
C) A response to the chemical signals
D) A way to separate the various microorganisms

Answer 2

Correct Answer:
C) A response to the chemical signals

Question 3

Bacteria have nuclei.

A) True
B) False
C) Not applicable 1
D) Not applicable 2

Answer 3

Correct Answer:
B) False

Question 4

Antonie van Leeuwenhoek, using a microscope, was the first to actually describe observations of bacteria, in (BLANK).

A) 1675
B) 1775
C) 1575
D) 1875

Answer 4

Correct Answer:
A) 1675

Question 5

Bacteria are prokaryotic because their genetic material (DNA) is not housed within a true (BLANK).

A) Golgi
B) Ribosome
C) Cell
D) Nucleus

Answer 5

Correct Answer:
D) Nucleus

Question 6

How long is all of the DNA is all of your cells?

A) 10 miles
B) 10 million miles
C) 10,000 miles
D) 100 billion miles

Answer 6

Correct Answer:
D) 100 billion miles

Question 7

What is shown here (that is magnified by a microscope)?

A) Blade of grass
B) Plumeria leaf
C) Pine needle
D) DNA

Answer 7

Correct Answer:
C) Pine needle

Question 8

What is shown here (that is magnified by a microscope)?

A) Plastic
B) Honey
C) Salt
D) Styrofoam

Answer 8

Correct Answer:
B) Honey

Question 9

What is this structure indicated by the arrow?

A) Coarse knob
B) Base
C) Arm
D) Ocular lens

Answer 9

Correct Answer:
A) Coarse knob

Question 10

Which of these images are viewed at a higher magnification?

A) B
B) A
C) Both are the same magnification
D) No answer text provided

Answer 10

Correct Answer:
A) B

Question 11

Which microbe is this growth representing?

A) B. streptococcal
B) E. COLI
C) E. elegans
D) C. perfringens

Answer 11

Correct Answer:
B) E. COLI

Question 12

What is the name of this object being shown by the arrow?

A) Arm
B) Base
C) Valve
D) Flame

Answer 12

Correct Answer:
C) Valve

Question 13

When this step is complete, you should immediately set down your inoculation tool.

A) No
B) Sometimes
C) I’m not sure
D) Yes

Answer 13

Correct Answer:
A) No

Question 14

Before transferring the bacteria from the petri dish into the test tube, it is important to place the inoculation tool under the flame one more time.

A) On one occasion
B) I don’t know
C) No
D) Yes

Answer 14

Correct Answer:
C) No

Question 15

What is the name of this object?

A) Chicken embryo
B) Aluminum
C) Breast tissue in lactation
D) Nickel highlighted

Answer 15

Correct Answer:
C) Breast tissue in lactation

Question 16

What is the name of this organism?

A) Fern sorus
B) Plant leaf
C) Liver cell
D) DNA

Answer 16

Correct Answer:
A) Fern sorus

Question 17

What is this instrument called?

A) Wet pen
B) Wax pen
C) Wet pencil
D) Wax pencil

Answer 17

Correct Answer:
D) Wax pencil

Question 18

What is this instrument known as?

A) Bunsen burner
B) Inoculation loop
C) None of these
D) Inoculation tool

Answer 18

Correct Answer:
B) Inoculation loop

Question 19

What is the name of this structure?

A) Sugar side chain
B) Cholesterol
C) Hydrophobic fatty acid tail
D) Hydrophilic head

Answer 19

Correct Answer:
A) Sugar side chain

Question 20

Pure cultures of bacteria are most often obtained by the:

A) Streak technique
B) Creating slides
C) Streak plate technique
D) Plate method

Answer 20

Correct Answer:
C) Streak plate technique

Question 21

To what organ is this arrow pointing?

A) Liver
B) Stomach
C) Pancreas
D) Small intestine

Answer 21

Correct Answer:
A) Liver

Question 22

To what organ is this arrow pointing?

A) Small intestine
B) Stomach
C) Liver
D) Pancreas

Answer 22

Correct Answer:
D) Pancreas

Question 23

What reactions destroy reactants, reducing big complex substances into molecular rubble?

A) Reducing
B) Anabolic
C) Displacement
D) Catabolic

Answer 23

Correct Answer:
D) Catabolic

Question 24

Vitamins are:

A) Water-soluble
B) Neither
C) Both
D) Fat-soluble

Answer 24

Correct Answer:
C) Both