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. Many organisms that can reproduce both sexually and asexually share a reproductive pattern. When the environment is favorable for growth, reproduction is asexual. When the environment deteriorates, sex occurs. Sexually produced offspring remain dormant until better conditions occur. Which of the theoretical ideas about the function of sex is […]