BIOS 1705: Lab Quiz 1 Questions and Answers (100% Correct Answers) Already Graded A+

1 Exampromax - Stuvia US 2025/2026


BIOS 1705: Lab Quiz 1 Questions and Answers
(100% Correct Answers) Already Graded A+
condenser
Ans: concentrates the light on the specimen


high power objective
Ans: 40x


ocular
Ans: lens nearest to the eye
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Exampromax - Stuvia US




stage adjustment knobs
Ans: moves a slide around the stage


low power objective
Ans: 4x


arm
Ans: use to safely carry the microscope


stage
Ans: platform on which the slide is mounted


iris diaphragm
Ans: controls the amount of light reaching the specimen


medium power objective
Ans: 10x


coarse adjustment knob
Ans: use to focus at low power ONLY

, 2 Exampromax - Stuvia US 2025/2026

fine adjustment knob
Ans: use to focus at medium and high power


lamp
Ans: source of light for the microscope


How do you determine the magnification knowing the power of the
objective lens?
Ans: take the power of the objective and multiply it by ten


How would you determine the size of an object that you see in the
microscope?
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Ans:
Exampromax - Stuvia US




level os taxonomy
Ans: 1. domain
2. kingdom
3. phylum
4. class
5. order
6. family
7. genus
8. species


phylum porifea
Ans: "pore"; ex) glass sponge


phylum cnidaria
Ans: jellyfish; ex) moon jelly


phylum mollusca
Ans: snails; ex) squid


phylum platyhelminthes
Ans: flatworms; ex) planaria