Midterm 1- Cell Biology

Question 1

cytology

Answer 1

study of cellular structure

Question 2

cell physiology

Answer 2

study of cellular function

Question 3

millimeters (mm)

Answer 3

1 x 10^-3 m

Question 4

micrometers

Answer 4

1 x 10^-6 m

Question 5

nanometers

Answer 5

1 x 10^-9 m

Question 6

Light microscope

Answer 6

compound/dissecting (also known as brightfield)

Question 7

Phase Contrast microscope

Answer 7

3D- more deminsions

Question 8

Fluorescent microscope

Answer 8

only one phase in focus

Question 9

Confocal microscope

Answer 9

high resolution; optically slices tissues

Question 10

Electron microscope

Answer 10

transmission, scanning, x-ray detection, sub-microscope level–transmission and scanning (like in NCIS)

Question 11

What size can the human eye see? How much smaller are cells?

Answer 11

Humans can see approximately 100 micrometers, but a cell is about 1/10th that size (1.0 micrometers)

Question 12

What is resolution?

Answer 12

the ability to tell the difference between two points

Question 13

Can light microscope help see organelles? If so, which one(s)?

Answer 13

ONLY the nucleus

Question 14

Which microscope allows you to see higher detail of the cytoskeleton?

Answer 14

Confocal Microscope

Question 15

What is the most common microscope?

Answer 15

Light microscope

Question 16

What is the second most common microscope?

Answer 16

Electron microscope

Question 17

What is freeze fracturing?

Answer 17

consists of physically breaking apart (fracturing) a frozen biological sample; structural detail is replicated for view in a transmission electron microscope