Bio physics problem: how much CO2 is the organism taking up per unit time if onl

Question

Bio physics problem: how much CO2 is the organism taking up per unit time if only CO2 can arrive through passive diffusion? Give your answer in terms of c0, its radius R, and the diffusion coefficient D. (Background information: volvox is a multicell. spherical green algae that lives in fresh water and can grow to be 2mm in diameter. volvox needs CO2 and light to produce energy to survive. assume a single volvox is sitting in a still pong with CO2 concentrations c0 and assume that every CO2 molecule that hits the surface of the volvox is absorbed.)

Explanation / Answer

Answer:

About: Metabolism is carried out by metabolic enzymes that are   characterized kinetically by a catalytic rate  
kcat (also referred to as the turnover number).Simple put kcat signifies how many reactions an  
enzyme can possibly make per unit time.  

Process:

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