In proteins, there are three types of chromophores relevant for UV/Vis spectroscopy:

peptide bonds (amide bond);

certain amino acid side chains (mainly tryptophan and tyrosine); and

certain prosthetic groups and coenzymes (e.g. porphyrine groups such as in haem).

TLS Online TPP Program

#Id: 7811

#Unit 10. Ecological Principles

Regulate body temperature

Body temp remain constant

Heat (in) = heat (out)

Heat (in) = Metabolism + solar radiation

Heat (out) = Radiation + Convection + Conduction + Evaporate 

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#Id: 6928

#Unit 8. Inheritance Biology

Haploinsufficiency - One copy of the gene is missing; a mutant phenotype is produced

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#Id: 4588

#Unit 13. Methods in Biology

Flow cytometry or FACS is the sine qua non (without which, nothing) of the modern immunologist’s toolbox.

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#Id: 5442

#Unit 7. System Physiology – Animal

voltage-gated K + channels bring the action potential to an end and cause closure of their gates through a negative feedback process

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#Id: 2317

#Unit 3. Fundamental Processes

There are three type of Splicing signals 

Major U2-type or GU-AG introns

Minor U12-type or AU-AC introns

Minor U12-type with GU-AG introns (hybrid type)