Exam 3: Tools of the Laboratory: Methods for the Culturing of Microscopic Analysis of Microorganisms

The three physical forms of laboratory media are ______.

Comparing transmission electron microscopy with scanning electron microscopy, the following statement is true.

The term that refers to the purposeful addition of microorganisms into a laboratory nutrient medium is ______.

Which type of microscopy transforms the subtle variations in cell density into differences in light intensity, allowing for increased internal detail without staining?

Which of the following is not a benefit of agar as a solid medium?

The purpose of staining cells on a microscope slide is to ______.

The simple microscopes used by the earliest practitioners of microscopy contained which of the following?

Which term refers to the microscope's ability to show two separate objects as discrete and distinct?

Newly inoculated cultures must be _____ at a specific temperature and time to encourage growth.

A microbiology student with a visual disability is viewing a sample of Bacillus endospores in a phase contrast microscope that is linked to an iPad. By "stretching" the image on the iPad screen, the student can increase the apparent size of the endospores. How does this manipulation affect Resolution and contrast? (No software is being used to alter the image!)

Who invented the ?rst crude microscope by grinding glass?

Thioglycolate medium contains the following: yeast extract, pancreatic digest of casein, glucose, L- cysteine, sodium chloride, sodium thioglycolate, and agar. It is considered a complex medium because _______.

Following a properly-performed Gram stain, gram-positive bacteria will appear as pink or red cells.

A nutrient medium that contains at least one ingredient that is not chemically defined is termed ______.

Which isolation technique is most effective for the majority of applications and is most commonly used for colony isolation in the laboratory?

All of the following pertain to the fluorescence microscope except _______.

Agar is an important component of media because _______.

The _____ of the microscope holds and allows selection of the objective lenses.

Which method often results in colonies developing down throughout the agar along with some colonies on the surface?

What do the Gram stain, the acid-fast stain, and the endospore stain have in common?