In the absence of oxygen, cells consume glucose at a high, steady rate. When oxy

Question

In the absence of oxygen, cells consume glucose at a high, steady rate. When oxygen is added, glucose consumption drops precipitously and is then maintained at the lower rate. Why is glucose consumed at a high rate in the absence of oxygen and at a low rate in its presence? 2 In the following diagram showing the distribution of thermal energy in a population of substrate molecules, the energy thresholds indicated by numbers represent ul be of Energy per molecule ole cu es A. the activation energy at high and low temperature. B.the reaction rate at high and low pH C the activation energy with and without an enzyme. D. the reaction rate at high and low substrate concentrations E. the activation energy at high and low substrate concentrationsS 3 Sort the following molecules from a low to high rate of diffusion inside the cytosol. Your answer would be a four-letter string composed of letters A to D only, e.g. ADCB (A)Myoglobin (a protein) (B) Glycine (an amino acid) (C) Ribosome (a protein-RNA complex) (D) CO,

Explanation / Answer

1. In the absence of oxygen, glucose metabolism will produce only 2ATPs. So cell requires more glucose to produce more ATP. But in aerobic respiration, metabolism of glucose produces 36/38 ATP per molecule of glucose. So for the same amount of ATP, we need more glucose in absence of oxygen than in aerobic condition.

4. NADH is a activated carrier molecule

6. Silver

7. A hydrophobic molecule is typically.... e) incapable of interacting favorably with water

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