When muscles are exercised extensively in the absence of sufficient oxygen

a. a large amount of ATP is formed
b. NADH molecules split
c. lactic acid is produced
d. oxidative respiration ceases


Ans: c. lactic acid is produced

Biology & Microbiology

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An opening in leaves that functions in the exchange of gases is called a ____

a. cuticle b. stoma c. guard cell d. pit e. pore

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List some of the applications of DNA sequencing. What will be an ideal response?

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If red blood cells are taken from the body and placed in a hypertonic solution, what happens to the cells?

A) The cells remain unchanged due to equal solute concentrations inside and outside the cells. B) The cells remain unchanged due to equal water concentrations inside and outside the cells. C) They become white blood cells. D) The cells swell and burst because water moves into them. E) The cells shrivel up because water leaves them.

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