Exam 1: The Evolution of Microorganisms and Microbiology

__________ microbiologists monitor community food establishments and water supplies in order to control the spread of communicable diseases.

__________ and __________ microbiology investigates the spoilage of products for human consumption and the use of microorganisms in the production of cheese,yogurt,pickles,beer,and the like.

Who of the following first discovered that some blood leukocytes could engulf disease-causing bacteria?

The earliest microbial fossils that have been found are dated from approximately 4.5 million years ago.

John Tyndall demonstrated that microorganisms present in the air are carried on dust particles.

Viruses and bacteria were first cultured in the laboratory at about the same time. Blooms Level: 2.Understand Section: 01.03

Which of the following distinguish the field of microbiology from other fields of biology?

Cells with a relatively complex morphology that have a true membrane-delimited nucleus are called

__________ was the first to isolate a root nodule bacterium capable of nitrogen fixation.

Whose work on spontaneous generation first demonstrated the existence of a very heat-resistant form of bacteria that are called endospores?

Proteins function in modern cells as

The use of enrichment cultures and selective media was pioneered by

__________ microbiology involves the use of microorganisms to make products such as antibiotics,vaccines,steroids,alcohols,vitamins,amino acids,and enzymes.

Old cultures of bacteria that have lost their ability to cause disease are said to be

Elie Metchnikoff discovered __________,which is a major feature of the host immune response. Blooms Level: 3.Apply Learning Outcome: 01.03.01 Evaluate the importance of the contributions to microbiology made by Hooke,Leeuwenhoek,Pasteur,Koch,Cohn,Beijerinck,von Behring,Kitasato,Metchnikoff ,and Winogradsky Section: 01.03

__________ discovered that soil bacteria could oxidize iron,sulfur,and ammonia to obtain energy.

Although developed over 100 years ago,Koch's postulates continue to be used successfully in all known human infectious diseases.

Who of the following was the first to observe and accurately describe microorganisms?

RNA serves to convert the information stored in DNA to ________.

The branch of microbiology that studies the relationship between microorganisms and their habitats is called __________.