True or false? Osmosis is a type of diffusion.
Answer: True
- (Osmosis is the diffusion of water across a selectively permeable membrane.)
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A and P
- Which of the following is NOT a function of the respiratory system?
- Which of the following particles could diffuse easily through a cell membrane?
- True or false? The water-soluble portion of a phospholipid is the polar head, which generally consists of a glycerol molecule linked to a phosphate group.
- If a red blood cell is placed in a salt solution and bursts, what is the tonicity of the solution relative to the interior of the cell?
- What property of dishwashing liquid (detergent) makes it useful to wash grease from pans?
- Water passes quickly through cell membranes because
- Which of the following factors does not affect membrane permeability?
- How can a lipid be distinguished from a sugar?
- Of the following functions, which is most important for the glycoproteins and glycolipids of animal cell membranes?
- Which of the following is true of the evolution of cell membranes?
- What name is given to the process shown in this animation?
- Structure A in this animation is a(n) _____.
- Which of these cannot rapidly pass directly through the phospholipids of the plasma membrane?
- What is the function of Structure E?
- Which of the following is a reasonable explanation for why unsaturated fatty acids help keep any membrane more fluid at lower temperatures?
- ¡Qué bueno que estás aquí, Juan Carlos! Eres uno más de la familia.
- Gracias por invitarme a celebrar este Día de Muertos.
- Los de la foto son mis padres el día de su boda.
- A mí me gustan mucho las galletas.
- Mis padres se conocieron en la fiesta de un amigo.
- El Día de Muertos se celebra con flores, calaveras de azúcar, música y comida.
- Vickie has a tumor that secretes excess amounts of the hormone aldosterone. Because of the elevated level of hormone, she exhibits
- ADH and aldosterone secretion are part of the body's long-term compensation for
- Homeostatic mechanisms in response to blood loss include all of the following, except