At the beginning of an enzyme-catalyzed reaction the ________ is negligible.

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#Question id: 10131

#Section 2: General Biology

The detailed chemical mechanism of the oxidation of water to O2 is not yet well understood, but with structural information shows_one electron carrier, generally identified as Yz, functions between the oxygen-evolving complex and P680 to function in this region, Yz needs to have a very strong tendency to retain its electrons, this species has been identified as;

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#Question id: 174

#Section 2: General Biology

What is the net charge on the dipeptide Arg-Pro at pH 9.0? The table below gives the pKaʹs of the ionizable groups on the free amino acids.

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#Question id: 2944

#Section 3: Genetics, Cellular and Molecular Biology

DNA replication at each origin occurs only once during the cell cycle because of:

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#Question id: 15673

#Section 6: Plant, Animal and Microbial Biotechnology

A urine sample with more than 100,000 organisms is considered indicative of infection. A urine sample containing 5,000 bacteria, with a generation time of 30 minutes, sits for 3 hours before finally being assayed. How many bacteria will then be present within the sample?

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#Question id: 360

#Section 4: Fundamentals of Biological Engineering

Which of the following is considered to be a strong base (alkali)?