Exam 1: Microorganisms and Microbiology

A microbial cell's membrane is considered ________,because its internal constituents are maintained within the cell.However,it also imports and exports other molecules in response to its environment.

The environment in which a microbial population lives is its habitat.

The text states that antibiotics are derived from microorganisms.What is the benefit to an antibiotic-producing microorganism of producing an antibiotic in its natural habitat?

Microbial cells first evolved on Earth approximately ________ billion years ago.

The discipline of microbiology is intimately associated with biochemistry and genetics,because cells are both biochemical catalysts and genetic coding devices.

An ecosystem includes ________ along with ________.

________ was the first to describe microorganisms,while ________ was the first person to see bacteria.

Martinus Beijerinck was the first to isolate

In what/which domain(s)of life is/are microorganisms represented?

Which scientific objective is LEAST related to microbial genetics?

Explain why microbial cells are excellent models for understanding cell function in higher organisms.

Louis Pasteur developed the vaccine(s)for

Compare and contrast the functions microbes serve in the digestive systems of both humans and rumens (e.g.,cattle).

The science of grouping and classifying microorganisms is known as

The discovery of antibiotics and other important chemicals led to the field of

Which of the following is/are characteristic of ALL cellular organisms?

Robert Koch contributed to the field of microbiology by being the first person to

Transparent double-sided dishes used for growing microbes are most commonly called

Microbes were first formally observed during the mid-1600s,but the cell theory was not enunciated until 1839.Write a brief essay explaining why microbiology did not become a formally recognized science until Louis Pasteur's and Robert Koch's time.

________ produced by microbial fermentation of glucose from cellulose or cornstarch is becoming a more important component of biofuels in the United States,and specialized ________ are needed to make this a commercially available product.