15680979
Descrição
Quiz por Rebekah Barger, atualizado more than 1 year ago
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Criado por Rebekah Barger
aproximadamente 6 anos atrás
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Questão 1
Questão
When molecules diffuse across a cell membrane, the direction of movement is into the cell or out of the cell is determined by what?
Responda
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concentration
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proteins
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channels
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carriers
Questão 2
Questão
What types of molecules are lipids completely impermeable to?
Responda
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large polar molecules
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ions
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large nonpolar molecules
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small polar molecules
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all polar molecules
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all nonpolar molecules
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small nonpolar molecules
Questão 3
Questão
How do molecules in the previous question diffuse across the membrane?
Responda
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active transport
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facilitated diffusion
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osmosis
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simple diffusion
Questão 4
Questão
What are two ways that active transport is different than facilitated diffusion?
Responda
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Active transport requires energy
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Facilitated diffusion requires energy
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Active transport moves against the concentration gradient. It moves from low concentration to high concentration
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Active transport moves against the concentration gradient. It moves from high concentration to low concentration
Questão 5
Questão
What are the three types of proteins in active transport
Responda
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channel proteins
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uniporters
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symporters
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antiporters
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transporters
Questão 6
Questão
The movement of water across a cell membrane is referred to as which of the following?
Responda
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active transport
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osmosis
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simple diffusion
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facilitated diffusion
Questão 7
Questão
What are capillaries?
Responda
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blood vessels
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arteries
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veins
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barriers
Questão 8
Questão
Substances exit a capillary by slipping between the cells through pores or [blank_start]intercellular clefts[blank_end].
Responda
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intercellular clefts
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intercellular holes
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extracellular matrix
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