Enzymes are named based on the substrate that they bind. This is possible because
- enzymes all have the same shape.
- enzymes are used up in the reaction.
- an enzyme binds one specific substrate.
- enzymes speed up the rate of a reaction.
- an enzyme is only associated with one metabolic pathway.
an enzyme binds one specific substrate.
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Following treatment with restriction enzymes, what procedure would be used to isolate DNA fragments of different lengths?
A. transformation B. transfection C. gel electrophoresis D. colony hybridization E. Western blotting
An Arctic community affects the tundra ecosystem by
A. the amount of waste it produces. B. the amount of oxygen it uses. C. All answers are correct. D. the amount of sunlight it captures for photosynthesis. E. the amount of habitat space it requires.
Which human activity is NOT a threat to biodiversity?
A) Application of synthetic fertilizers B) Importing pigs and goats in Hawaii for food C) Cattle ranching D) Building a large sugarcane plantation in a tropical rain forest E) No-till farming
Novocain, or procaine, is a chemical that dentists use to numb your mouth before drilling. The chemical blocks the sodium gates on sensory neurons, preventing them from opening. Describe how this chemical decreases (One hopes!) the perception of pain
What will be an ideal response?