Practice Questions

TLS Online TPP Program

#Question id: 290

Which of the following is a TRUE statement about ionic bonds in protein structure:

#SCPH28 | Zoology

Ionic bonds on the external surface of the folded protein are more stable than those buried in the protein interior.
In an ionic bond, a hydrogen atom carrying a partial positive charge on the electronegative atom of one covalent bond interacts with the partial negative charge of an electronegative atom of a second polar covalent bond.
Ionic bonds can only form between acidic and basic polar charged amino acid R groups in a specific pH range.
Ionic bonds only exist in inorganic molecules.

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TLS Online TPP Program

#Question id: 1667

#I Life Science/ Life Sciences Group – I-V

A B-cell is able to make cell-surface and secreted versions of antibody using:

TLS Online TPP Program

#Question id: 3880

#SCPH01 Biochemistry

Which one of the following properties of the L-19 IVS ribozyme is not shared with enzymes that are purely protein?

TLS Online TPP Program

#Question id: 3032

#SCPH28 | Zoology

Which of these statements about prokaryotes is correct?

TLS Online TPP Program

#Question id: 5587

#SCPH01 Biochemistry

Which gene on the Y chromosome transforms the bipotential gonad into a testis in mammals?

TLS Online TPP Program

#Question id: 10994

#SCPH28 | Zoology

When recording lead II on an EKG, the positive electrode is the