Which of the following is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal?
A) The sodium ions are moving down their electrochemical gradient while glucose is moving up.
B) Glucose entering the cell along its concentration gradient provides energy for uptake of sodium ions against the electrochemical gradient.
C) Sodium ions can move down their electrochemical gradient through the cotransporter whether or not glucose is present outside the cell.
D) The cotransporter can also transport potassium ions.
E) A substance that blocks sodium ions from binding to the cotransport protein will also block the transport of glucose.
Electrospray mass spectrometry of a protein
β-Amyloid Protein
Control of transcription of a flagellar protein operon by a riboswitch for the regulatory nucleotide
Anterosuperior view of true pelvis (blue)
Alternative splicing of pre-mRNA for a muscle protein called α-tropomyosin
Opener Model showing how the lac repressor and catabolite-activating protein