10 Questions
A weak electrostatic attraction between one electronegative atom (such as oxygen or nitrogen) and a hydrogen atom covalently linked to a second electronegative atom
Hydrogen bond
the type of protein, often composed of multiple subunits, that exists in two or more conformations depending upon the binding of a specific ligand at a site other than the catalytic site is a(n)_____.
Allosteric
Which of the following statements regarding DNA replication is TRUE?
The initiation of transcription of a gene encoding for protein in eukaryotic cell requires the following except
Helical and primase
Which of the following cellular components is NOT required to make ATP by chemiosmosis?
CO2
For initiation of protein synthesis in eukaryotes, the following sequence applies
the small ribosomal subunit bind mRNA, followed by tRNA-Met and the large ribosomal subunit
Which of the following statements is correct regarding ATP driven pumps?
eukaryotic cells contain a variety of ATP driven pumps including Na+'K+ ATPase, Ca++ ATPase and H+ ATPase
The fluidity of a membrane is increased by
Unsaturated fatty acids
Which of the following statements regarding signal transduction cascades is FALSE?
second messengers relay the signal from the plasma membrane to the cell's interior
cyclin(s) _______
levels fluctuate during the cell cycle
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