How To Questions & Answers | Page 1

Certain hormones enter cells via receptor-mediated endocytosis, where they bind to specific receptors and are internalized into the cell through vesicles.

Insulin is the hormone that corrects a hyperglycemic state by facilitating glucose uptake into cells and reducing glucose production in the liver.

Glucagon stimulates the breakdown of polymerized glucose through the process of glycogenolysis, converting glycogen into glucose.

The best description of a hormone is any message carried by the bloodstream, which can be represented by the equilibrium equation $H + R \leftrightarrow HR$, where $H$ is the hormone, $R$ is the receptor, and $HR$ is the hormone-receptor complex.

True. Osmosis is a type of diffusion where water molecules move across a semi-permeable membrane from a region of lower solute concentration to a region of higher solute concentration.

The rate of diffusion is affected by the density of the medium, size of the molecule, pH, concentration gradient, and membrane permeability.

Air freshener in a room, food coloring in a cup of water, and the smell of fresh baked cookies are examples of diffusion, where particles move from high to low concentration.

The step "Warmed air rises, creating a high-pressure system below" is not part of a normal convection cycle; it actually creates a low-pressure system above.