BIO 101 LAB ACTUAL TEST PAPER 2026 QUESTIONS AND SOLUTIONS GRADED A+

BIO 101 LAB ACTUAL TEST PAPER 2026
QUESTIONS AND SOLUTIONS GRADED A+

●● condenser.
Answer: a system of lenses that focuses light on the object


●● iris diaphragm.
Answer: a mechanism built into the condenser that adjusts the amount of
light that strikes the object. It can be opened or closed using the lever on
the side of the condenser to increase or decrease the amount of light
striking the object


●● objective lenses.
Answer: mounted on a revolving nosepiece or turret


●● parfocal.
Answer: most new microscopes are ______.


●● parfocal.
Answer: when an object is in focus with one lens, the lenses can be
changed without completely losing focus


●● magnification.

, Answer: the lens closest to the specimen produces the _______


●● scanning.
Answer: another word for the 4x magnification is ______ objective


●● low-power.
Answer: another word for the 10x magnification is ______ objective


●● high-power.
Answer: another word for the 40x magnification is ______ objective


●● oil immersion.
Answer: another word for the 100x magnification is the _______
objective


●● resolving power.
Answer: a second lens within the objective is responsible for
determining the microscope's _______.


●● resolving power.
Answer: the ability to reveal detail and distinguish two closely spaced
objects as being two rather than one