Testosterone is a small steroid hormone that is important in cell signaling. Which of the following indicates where testosterone
enters a cell and why it is able to cross at that point? А
1, because testosterone is nonpolar and can diffuse through the membrane.
B
2, because testosterone covalently binds to a surface protein and transports into the cell.
C3, because testosterone dissolves in water and flows through the channel
D
4, because testosterone is filtered out of the extracellular fluid and taken into the cell by endocytosis.
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