In order to work best, enzymes ____

a. always need coenzymes
b. randomly grab surrounding molecules
c. need low pH
d. need high temperatures
e. need set environmental conditions, specific for each enzyme


ANSWER: e

Biology & Microbiology

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The specific heat of water is

a. a gram of substance. b. energy required to raise a gram of substance 1? F. c. calories need to heat seawater. d. energy required to raise a gram of substance 1? C. e. energy required to evaporate 1 gram of liquid water.

Biology & Microbiology

Match the specialized sense to the role it plays. 

1. magnetic field receptors 2. pit organs  3. ampullae of Lorenzini  ___ sense infrared radiation in prey ___ sense electrical currents from muscles  ___ help long-distance migratio

Biology & Microbiology

Chart the path of blood through the heart, including the valves passed. What will be an ideal response?

Biology & Microbiology

In general, microbial growth in the open ocean is most limited by the availability of ________.

A. iron B. manganese C. phosphorus D. nitrogen

Biology & Microbiology