Microscope

Question 1

Disecting (stereo) microscope

Answer 1

• to view larger organisms
• low magnification
• mono or binocular
  ex: bacteria

Question 2

Compound microscope

Answer 2

• to magnify very small objects
• 40-1000x
• mono or binocular

Question 3

prepared slides

Answer 3

permanent

Question 4

wet mount slides

Answer 4

temporary

Question 5

3 major parts of microscopes

Answer 5

• lens system
• adjustable light source
• focusing mechanism

Question 6

condenser

Answer 6

light passes through condenser which focuses the light on the specimen on the slide

Question 7

iris diaphragm

Answer 7

Built into the condenser is the iris diaphragm which allows a viewer
to increase or decrease the contrast

Question 8

course focusing knob

Answer 8

object is first identified using the lowest magnification objective and brought into rough focus

Question 9

fine focusing knob

Answer 9

used after course focusing knob to bring into sharp focus

Question 10

resolution (resolving power)

Answer 10

• ability to clearly distinguish objects which are close together
• Resolving power increases as the wavelength of light used decreases and most microscopes utilize blue light which has a short wavelength to increase resolution.