Industrial fermentation and fermentation in food production
A) are both processes in which sugars are oxidized to alcohols or acids.
B) are processes in which sugar or protein is oxidized to produce alcohols or acids.
C) use entirely different microorganisms.
D) use entirely different starting material.
E) make use of entirely the same microorganisms.
D
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A pseudostratified epithelium is composed of _____
A) a single layer of cells of variable height B) a hierarchical arrangement of flat cells C) a tight layer of square cells attached to a basement membrane D) alternating layers of thick and thin cells E) a stacked layer of ciliated, mucus-secreting cells
Which types of cells or cell components play an essential role in the clotting of blood?
a. erythrocytes b. platelets c. leukocytes d. hemoglobin e. plasma
You are studying a plant with mutant, nonfunctional PIN proteins. Assuming this plant could otherwise develop normally, predict how you might expect this plant to respond to directional light.
A. The plant will bend toward the light. B. The plant will bend away from the light. C. The plant will not move in response to light. D. The plant will move randomly.
Robert Hooke first used the term cell in 1665. However, nearly 200 years passed before scientists developed the cell theory. Why did it take so long between the first use of the term cell and the development of the cell theory?
A) The development of the cell theory depended on scientists first developing the germ theory of disease. B) Scientists were more interested in studying the relationship of organisms to their environment rather than their structure. C) Microscopes were not available for scientists to study the cellular structure of organisms. D) Scientists had to make many observations of various organisms before they could establish a theory.