Which of the following BEST explains the role of enzymes in a reaction
a. An enzyme causes an increase in the rate of reaction by binding to a substrate.
b. An enzyme increases the amount of energy needed to complete the reaction.
c. An enzyme binds to a product causing a decrease in the rate of the reaction.
d. An enzyme increases the temperature of a reaction so that the reaction can occur faster.
Ans: a. An enzyme causes an increase in the rate of reaction by binding to a substrate.
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In the scientific process, the word ________ is reserved for those few major concepts that offer the best explanation to fit a broad range of established facts
Fill in the blank(s) with correct word
A case study. Epidemiologists were working on tracing an infectious disease outbreak. They traced all of the cases back to a specific movie theater, at a specific time, where the index patient saw a movie. Very few of the 34 cases that became infected at the theater ate or drank while watching the movie with the index patient. What do you suppose was the mode of transmission for this infectious disease?
A) Inhalation B) Ingestion C) Direct body contact
Mycorrhizae are a:
A) mutualistic association between algae and plant roots. B) parasitic association between algae and fungi. C) mutualistic association between plant roots and a fungus. D) parasitic association between animals and fungi.
Most of the blood vessels and nerves in the digestive tract are located in the layer of:
A) submucosa. B) serosa. C) mucosa. D) muscularis externa.