The pH indicator phenol red is used for monitoring the status of the medium. This will change from red at pH 7.2–7.4 to yellow or fuchsia as the pH becomes either acidic or alkaline, respectively.

TLS Online TPP Program

#Id: 5641

#Unit 7. System Physiology – Animal

Rhodopsin is comprised of: 

Retinal (an aldehyde of vitamin A)

Opsin protein (GPCR)

TLS Online TPP Program

#Id: 4006

#Unit 7. System Physiology – Animal

The SA node exhibits automaticity; it can spontaneously generate action potentials without neural input.

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#Id: 7895

#Unit 2. Cellular Organization

Vertebrate mtDNAs encode 2 rRNAs, 22 tRNAs, and 13 proteins involved in electron transport and ATP synthesis. 

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#Id: 9001

#Unit 6. System Physiology – Plant

The products of the catalytic cycle are either two molecules of 3-phosphoglycerate (carboxylase activity) or one molecule each of 3-phosphoglycerate and 2-phosphoglycolate (oxygenase activity).

TLS Online TPP Program

#Id: 7782

#Unit 2. Cellular Organization

Nucleoporin

Large group of proteins that make up the nuclear pore complex. one class (FG-nucleoporins) participates in nuclear import and export.