Question

question 32
what structure on the microscope permits exact focusing?
illuminator
fine adjustment
coarse adjustment
iris diaphragm

question 33
when carrying the microscope around, you are to use one hand to carry the microscope:
true
false

question 34
the test for lipids, which layer stained red?
bottom
middle
top

Explanation:

• For Question 32: The fine - adjustment knob on a microscope allows for exact focusing. The illuminator provides light, the coarse - adjustment makes large changes in focus, and the iris diaphragm controls light intensity.
• For Question 33: When carrying a microscope, two hands should be used (one on the arm and one under the base) to ensure stability and prevent damage.
• For Question 34: In the test for lipids using Sudan III or Sudan IV stains, lipids, which are less dense than water, are found in the top layer and get stained red.

Answer:

Question 32: fine adjustment
Question 33: False
Question 34: Top