Bioscience unit 6 quiz

When Louis Pasteur conducted the experiment showing that microbes were airborne, what was the purpose for the beef broth?

• create a new growing medium

• to ferment into a new beverage

• to supply the necessary microbes

• to provide food for the microbes

What is the main value of anaerobic bacterial fermentation to biotechnologists and industries?

• It does not rely upon yeast.

• It uses bacteria instead of yeast.

• It produces useful by-products.

• It can be conducted without oxygen.

How did classical biotechnology MOST support the growing demand for mass produced goods?

• by making production methods more efficient

• by making new products available to everyday people

• by devising home-based solutions for common problems

• by replacing natural products with completely artificial ones

Amylases are enzymes that break down starches and plant fibers by converting them into simple sugars. Based on this information, which industries are MOST likely to use amylase?

• brewing, textile, and paper

• baking, leather, and mining

• ammunition, fuel, and chemical

• pharmaceutical, chemical, and metal

Akilah says that governments probably financed most of the 20th-century biotechnology research because of the many products needed to conduct war. What other source of funding was MOST important during this century?

• scientific departments of universities

• major manufacturers and industry groups

• large hospitals and medical institutions

• private, independently wealthy donors

What was MOST unique about George Washington Carver’s research laboratory, compared to those of other scientists in the late 19th century?

• It was not located in his home.

• It was used only by him instead of shared.

• It produced solely biotechnological products.

• It was the only laboratory in the American South.

When did industrial or large-scale food and beverage production begin?

• in the first half of the 19th century

• in the second half of the 19th century

• in the first half of the 20th century

• in the second half of the 20th century

What similarity between glycerol and lactic acid was MOST important during World War I?

• Both are products of fermentation.

• Both can be used to produce cordite.

• Both were already being produced for industry.

• Both could be produced in industrial fermenters.

Who developed the ABE fermentation process?

• Moritz Traube

• Eduard Buchner

• Louis Pasteur

• Chaim Weizmann

Why did textile manufacturers prefer to use enzymes to break down the starches in plant fibers such as raw cotton, instead of other methods or chemical agents?

• Enzymes are more abundant in nature.

• Enzymes are less toxic and damaging.

• Enzymes more effectively stretch material.

• Enzymes produce deeper colors in fabric.