When you read the volume of a graduated cylinder, the glassware must be stationary and stabilized (not you holding it up to look at), and you must be eye level with the volume of the liquid in the glassware. 

Which of the following proteins does the immune system use to disrupt alternative C3 convertase formation on human cell surfaces?

This course has a lab practical exam at the end that counts as two lab grades.

Approved eye protection devices (such as goggles) are worn in the laboratory A.  to avoid eye strain. B. to improve your vision. C. only if you don’t have corrective glasses. D. any time chemicals, heat or glassware are used.

When gathering glassware and equipment for an experiment, you should A.  read all directions carefully to know what equipment is necessary. B.  examine all glassware to check for chips or cracks. C.  clean any glassware that appears dirty. D.  All of the above.

Long socks must be worn to avoid skin showing and being vulnerable in the area between the shoe and pants.

It is okay to set the lid of a DI water bottle directly on the lab top bench.

Which of the following proteins does the immune system use to disrupt alternative C3 convertase formation on human cell surfaces?

Which of the following make up or are a part of the physical barriers that help protect the human body against pathogens?

Which of the following make up or are a part of the physical barriers that help protect the human body against pathogens?