When bacteria are exposed to nutrient-poor conditions, they form thick-walled structures that contain the chromosome and a small amount of cytoplasm. These structures are called
A. nucleoids.
B. endospores.
C. exospores.
D. pseudomonads.
E. plasmids.
Answer: B
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The meshwork that forms the framework of a blood clot is _____
A) chymotrypsin B) fibrin C) thrombin D) prothrombin E) collagen
In order to reuse an enzyme after the conclusion of an enzyme catalyzed reaction, what must occur?
A. the enzyme has to be resynthesized B. the enzyme has to separate itself from the product C. changes into an active form D. the enzyme has to decrease entropy
Nondisjunction can lead to two forms of aneuploidy. What are they, and how do they occur?
What will be an ideal response?
The formulation Ca++Cl-2, indicates
A. covalent bonding between one calcium atom and two chlorine atoms. B. one calcium ion that has gained two electrons and formed ionic bonds with two chloride ions that have each lost one electron. C. one calcium atom with two protons and two chlorine atoms that share one electron. D. one calcium ion that has lost two electrons and formed ionic bonds with two chloride ions that have each gained one electron.