Microbiology BIOL333 Quiz

Organisms that can break down organic waste effectively and without producing unpleasant smells.

Microbes that cause diseases.

A community of microbes living in a specific area, often attached to a surface.

A form of energy production that involves breaking down organic matter to produce methane gas.

The process of using microbes to clean up pollution.

A scientific naming system used for organisms, where the genus is capitalized and the specific epithet is lowercase.

The process of using microbes to produce fermented foods like yogurt, cheese, and bread.

The ability of microbes to perform photosynthesis and fix carbon dioxide for their growth and energy production.

A single-celled eukaryotic organism that produces its own food through the breakdown of organic molecules like sugars.

A group of organisms that includes molds, mushrooms and yeasts. They are eukaryotic and have chitin cell walls. They obtain their energy through the breakdown of organic materials.

A type of microscope that uses light to magnify objects. It uses a combination of lenses to magnify the image.

The ability of a lens to distinguish between two closely spaced objects. This is measured in nanometers.

The bending of light as it passes from one medium to another. This is a key property that affects how light interacts with objects.

A type of light microscope that uses a special oil between the objective lens and the specimen to reduce light bending and improve image clarity.

A simple light microscope that uses two lenses to magnify objects. The objective lens magnifies the object, and the ocular lens magnifies the image created by the objective lens.

The total magnification of a compound light microscope is calculated by multiplying the magnification of the objective lens by the magnification of the ocular lens.

A specialized light source used in some advanced compound microscopes.

A knob used for fine adjustments to focus the microscope lenses, often used with higher magnification.

A knob used for larger adjustments to focus the microscope lenses, usually for lower magnification.

The lens you look through on a microscope, typically has a fixed magnification.

A microscope that uses electrons to magnify objects up to two million times. It scans the surface of the specimen.

A microscope that uses electrons to magnify objects. It passes electrons through a very thin specimen, revealing its internal structure.

The part of a microscope that you look through to view the specimen. It typically has a magnification of 10x.

The lenses located near the specimen that magnify it. Different objectives provide different magnifications (4x, 10x, 40x, etc.).

The platform where you place the specimen to be viewed. It often has a hole to allow light to pass through the specimen.

Two clips on the stage that hold the slide in place while you view the specimen.

A device located beneath the stage, used to adjust the amount of light that passes through the specimen. This helps control the brightness and contrast of view.

The stained, prepared specimen being viewed under the microscope. It can be a thin slice, a smear, or a cultured sample.

A type of microscopy that uses two lenses: an objective lens and an eyepiece, each magnifying the image.

A 17th-century Italian physician who refuted the idea of spontaneous generation by demonstrating that flies breed maggots, not that meat magically produces them.

The idea that living organisms can arise from non-living matter, which was disproven by experiments like Redi's.

A theory that states that all living organisms are composed of one or more cells, and the cell is the fundamental unit of life.

A Dutch lens grinder who, in the 17th century, is credited with the first observations of microorganisms using improved microscopes.

A scientific publication by Robert Hooke in 1660, containing detailed drawings and observations of biological materials made with advanced microscopy.

A microbiologist known for his experiments (swan-necked flasks) that disproved spontaneous generation.

A simple microscope uses only one lens, while a compound microscope uses two or more lenses to magnify the object.

Using a dye to color a microbe and emphasize its structure.

A smear is a thin film of a microbe solution on a slide, fixed to attach and kill microbes.

This type of staining uses only one dye. It helps visualize the basic morphology (shape) of a microbe.

This staining technique uses multiple dyes to distinguish between different types of microbes.

The Gram stain is a differential staining technique used to classify bacteria into Gram-positive and Gram-negative.

Used to distinguish special parts of microbes, such as capsules, endospores, and flagella.

A basic dye has a positively charged chromophore that binds to negatively charged components of the microbe, staining the microbe itself.

An acidic dye has a negatively charged chromophore that is repelled by the microbe, staining the background.