BIOS 242 Lab Practical Review

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BIOS 242 Lab Practical Review

• and are used to focus the microscope

–Answer - course and fine focus knobs

• is where the specimen to be viewed is placed

–Answer stage

• the primary optical lenses on a microscope.

–Answer optical lens

• optical lens range from _X- X

–Answer

4X-100X

• is the light source for a microscope, typically located in the base of the

microscope –Answer illuminator

• connects to the base and supports the microscope head. It is also used to carry the

microscope –Answer neck/arm

• of the microscope supports the microscope and houses the illuminator

–Answer base

• -regular agar plate with added nutrients to promote growth- 1 / 2

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–Answer nutrient agar plate

• - liquid medium lacks a solidifying agent

–Answer broth

• - agar in petri dish and cooled this provides large surface areas for the isolation and

study of microorganisms –Answer plate

• - stain purple, have thick layer of peptidoglycan

–Answer gram posi- tive

• - stain pink, contains much thinner layer of peptidoglycan

–Answer - gram negative

• shape

–Answer cocci –Answer round

• shape

–Answer bacillus –Answer long and skinny

• spirochete is

–Answer flexible

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