
3.4-3.5 Cell Membrane and Transport
Quiz by Rachel Lintelman
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10 questions
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- Q1What is the function of the cell membrane?modifies, sorts, and packages proteinsregulates what enters and leaves the cell; provides support and protectioncontrols the cell's activitiesmakes proteins30s
- Q2Cell membranes are constructed mainly ofcarbohydratesprotein pumpsphospholipidssalts30s
- Q3The movement of water molecules across a selectively permeable membrane is known asosmosis30s
- Q4A substance that moves across a cell membrane without using the cell's energy tends to moveaway from the area of equilibriumtoward the area where it is more concentratedaway from the area where it is less concentratedaway from the area where it is more concentrated30s
- Q5The type of endocytosis in which the cell membrane engulfs large particles; means "cell eating"facilitated diffusionpinocytosisphagocytosisosmosis30s
- Q6The process where pockets form along the cell membrane, fill with liquids or fairly large molecules, and pinch off to form vacuoles within the cell is known asosmosisendocytosisfacilitated diffusionpassive transport30s
- Q7What is the main way that active transport differs from diffusion?Active transport requires energy.Active transport moves molecules down the concentration gradient.Active transport does not require energy.Active transport moves molecules from areas of high concentration to low concentration.30s
- Q8The form of active transport in which large amounts of materials in a vacuole fuse with the cell membrane and are released from the cell is calledfacilitated diffusionosmosisendocytosisexocytosis30s
- Q9The process in which molecules that cannot diffuse across the cell membrane on their own diffuse through transport proteins instead is known asfacilitated diffusionactive transportsimple diffusionendocytosis30s
- Q10What will happen if a cell is placed in a hypertonic solution?Solutes will diffuse in and the cell will burst.Water will diffuse in and the cell will burst.Water will diffuse out and the cell will shrink.Solutes will diffuse out and the cell will shrink.30s