Biology 1111 Chapter 5 Questions And Complete Answers 2025.

Concentration Gradient - Answer the difference in the amount of a particular substance inside and outside the cell Passive Transport - Answer powered by a concentration gradient (moves from high to low concentration) Glycoprotein - Answer Transmembrane (integral) proteins - Answer are embedded into the bilayer of the membrane and cross from the cytoplasm to the outside of the cell Peripheral proteins - Answer are not embedded into the membrane, but are bound to the cytoplasmic side of the cell membrane Channels - Answer large, polar--> glucose, amino acids Carriers - Answer small, polar--> charged ions Enzymes - Answer proteins that serve as catalysts, they speed up the rate of a reaction by lowering the activation energy (examples of enzymes: catalysts, and proteins (-ase) Receptors - Answer enables a cell to acquire specific solutes that are embedded in regions of membrane that are linedby a layer of coat proteins glycolipid - Answer Simple Diffusion - Answer the passive transport of molecules that easily pass through the membrane, down the concentration gradient (high to low) facilitated diffusion - Answer channel and carrier proteins are used to facilitate the transport of materials across the membrane without the use of ATP estrogen, testosterone, cholesterol - Answer Small Non-polar Lipids can pass through the membrane: