These cellular structures have stacks of thylakoid membrane sacs that contain photosynthetic pigments. 

The bacterial microscopic arrangement that appears as groups of four round cells is known as ____________________.

Even with medical advances, there is still infectious disease. Why (Based on the lecture notes)?

Pictured below is this bacterial arrangement, defined as chains of bacteria.  

Archaea are in a separate domain from bacteria.  Why?

You are staining a Gram-negative bacterium and forgot the safranin step (but continued with the rest of the procedure). What result do you expect at the end of the Gram stain?

This substance made during fermentation gives plain yogurt its tart taste.

This scientist set up an experiment to show that flies do not originate from rotten meat.  This experiment disproved spontaneous generation.  

This scientist coined the term “cell” when he noticed cork cells under the microscope.

A _________________________ is a type of roundworm.  Pinworms are examples of these types of helminths.