The chemical reactions in cells are called ____
a. substrate
b. coenzymes
c. receptor sites
d. metabolism
e. active site
ANSWER: d
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The first question in this dichotomous key addresses
a. oxygen tolerance. b. bacterial morphology. c. metabolic characteristics. d. Gram stain differences.
Match each scientist or group of scientists on the left with the appropriate statement to the right.
A) hereditary factors B) pollen grain C) chromosome theory of heredity D) dog saliva E) "ferments" of yeast F) transformation G) DNA double helix H) embryonic plant I) transfer RNA J) embryonic bacteria K) fruit fly L) transcription M) translation N) Calvin-Benson cycle O) "one gene—one enzyme" P) oral bacteria Q) urea 1) Gregor Mendel 2) Walter Sutton 3) Matthias Schleiden 4) Oswald Avery, Colin MacLeod, and Maclyn McCarty 5) George Beadle and Edward Tatum 6) James Watson and Francis Crick 7) Thomas Hunt Morgan 8) Friedrich Wöhler 9) Louis Pasteur
Four of the five outcomes listed below result when a
cell is placed in a hypertonic solution. Select the exception. a. wilting b. plasmolysis c. turgidity d. limpness e. shriveling
The condition of the fire ant in the above photograph
is caused by a. biological control with phorid flies. b. pesticides. c. wholesale physical destruction of their mounds. d. herbicides. e. all of these.