Microbiology Laboratory Review Please read each question care questions; A True
ID: 132909 • Letter: M
Question
Microbiology Laboratory Review Please read each question care questions; A True B False fully and mark your answers on the scantron provided. For the True or False 1-When carrying a microscope to and from your bench your hands should be placed a) b) e) d) one hand on the arm and one under the base both hands on the arm only one hand should be used under the base both hands under the stage 2-True or False Primary containment is protecting the immediate surroundings and personnel in a laboratory against infectious agents 3-The lens is located at the top of the instrument and consists of two internal lenses that have a magnification power of 10x a) ocular b) objective c) stage d) diaphragm 4-A Microscope that allows light rays to pass directly to the eye without being deflected by an intervening opaque plate in the condenser is called a) phase contrast microscope b) bright field microscope c) dark field microscope d) fluorescence microscope 5-The collects and directs the light from the light source to the specimen being examined a) condenser b) stage e) ocular lens d) base 6-The regulates the amount of light that reaches the specimen a) diaphrigm c) base d) nosepiece 7- The horizontal platform that supports the microscope slide is called the a) stage b) mechanical stage e) mechanical stage control d) none of the aboveExplanation / Answer
ANSWER 1.
One hand on the arm and one under the base is correct answer.
This position of holding the microscope gives you more stability and there are less chance of any accident.
ANSWER 2.
Given statement is true.
While working with microbes in lab, there is always a chance of infection. Some of the microbes can be lethal to human, therefore our primary containment should be protecting the immediate surroundings and personnel in lab against infectious disease.
ANSWER 3.
Ocular is correct answer.
Ocular lens is also called eye piece. This lens is present on the top of microscope and use to view the specimens through the microscope.
ANSWER 4.
Bright field microscope is correct answer.
It is simplest type of microscope. Light directly cross the condenser and reaches the objective lens. While, in case of dark field microscope, fluroscence microscope and phase contrast microscope an opaque plate is used.