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Q1. Some wines are marketed as “sparkling” wines. Sparkling wines are considered so because of a dissolved gas that makes them fizzy. Concern what you know about the procedure of respiration to explain the type and origin of this gas. Q2. A biologist is studying the exchange of genetic information […]

Cells use transporters to move nearly all metabolites across membranes. But how much faster is a transporter than simple diffusion? There is sufficient information available for glucose transporters to make comparison. The normal circulating concentration of glucose in humans is 5 mM, whereas the intracellular concentration is usually very low […]

Q1. If a cube representing the cell is 5um on a side, compute the surface area to volume ratio, and explain why this is or is not a good size for a cell. Q2. What are the 4 factors that influence contractile force and the two that influence velocity and […]

1. Which of the following statements is correct about cardiac output?a. Cardiac output is determined by the heart rate and pulse.b. Stimulation of the sympathetic nerves decreases cardiacoutput.c. Vagal discharge increases cardiac output.d. Cardiac output is determined by heart rate and strokevolume. 2. Which of the following is least related […]