I think it’s a forelimb of a whale
<span>The plasma membrane has a type of protein called intrinsic integrals that are embedded in the thickness of the bilayer and moves laterally in the membrane and act on arriving molecules. Their separation results in the destruction of the membrane structure, this protein is the opposite of the peripheral protein and act as filters and mechanisms of active transport in the nutrients and wastes that are expelled outside the cell.</span>
The student is wrong. Phosphorylation
cascade is important in cell signaling. Most cell signaling involves cyclic AMP (synthesized from
ATP). The cAMP activates Protein Kinases (PKA)
that phosphorylates protein
substrates involved in the signaling pathways
such as the GPCR. This helps in amplifying the initial signal.
<span>Glucose enters cells most rapidly by Facilitated Diffusion. This is a process in which molecules and ions are transported through the cell's membrane using proteins that are specifically created for that function. It's passive which means it doens't require energy, which is great for glucose because glucose is a carbohydrate, essentially energy, so more energy is created than lost.</span>
