Enzymes
A. are catalysts in chemical reactions.
B. can be carbohydrate molecules.
C. are polymers of ATP that store large amounts of energy.
D. have names generally ending in the suffix "-ose."
E. are broken down during chemical reactions they catalyze.
Answer: A
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As you walk, your gastrocnemius muscle (calf muscle) contracts, shortening and causing plantar flexion from the ankle. This muscle contraction is describing as being ________.
Fill in the blank(s) with the appropriate word(s).
The __________ space lies between the dura mater and the vertebrae.
Fill in the blank(s) with the appropriate word(s).
Fick's law of diffusion states that the rate of diffusion across a membrane is
A) proportional to surface area and membrane thickness, but inversely proportional to concentration gradient. B) proportional to membrane permeability, but inversely proportional to concentration gradient and surface area. C) proportional to concentration gradient, surface area, and membrane permeability. D) proportional to membrane thickness and surface area.
Sandwiched between the layer of circular and longitudinal muscle in the muscularis externa is the
A) mucosa. B) myenteric plexus. C) muscularis mucosa. D) submucosal plexus. E) submucosa.