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CELL TRANSPORT TEST REVIEW
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Active transport and diffusion both require energy.
TRUE OR FALSE Active transport and diffusion both require energy. FALSE
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When water diffuses into a plant cell, where is water collected?
Nucleus Cytoplasm Vacuole ribosome C
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What cell organelle is this?
Ribosome Endoplasmic reticulum Cell wall Cell membrane D
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The difference in concentrations on different sides of a space
Dynamic equilibrium Concentration gradient Diffusion barrier homeostasis B
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What will happen to an animal cell when it is placed in a salt water solution?
The cell will swell The cell will shrink The cell will remain the same size The cell will burst B
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When molecules such as water diffuse across a membrane, they move from
High concentration to low concentration Low concentration to high concentration Upper gradient to lower gradient Lower gradient to upper gradient A
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Look at the cell membrane… what are the molecules labeled A
Phospholipids Proteins Cholesterol carbohydrates B-PROTEINS
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Active transport requires cell energy while diffusion does not.
TRUE OR FALSE Active transport requires cell energy while diffusion does not. TRUE
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The diffusion of water across the cell membrane-
Osmosis Diffusion Facilitated diffusion hydration A
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The term solvent is to solute as
Salt is to sand Water is to salt Steel is to water Ice is to steam B
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The function of the plasma membrane is to
D Keep water from existing the cell Produce chemicals needed by cell Manufacture energy needed by the cell Regulate what enters & leaves the cell
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Which of the following is moved by facilitated diffusion?
Oxygen Carbon dioxide Glucose water C
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TRUE OR FALSE The maintenance of stable internal conditions is called cellular homeostasis. TRUE
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Diffusion & osmosis are types of
Dynamic equilibrium Passive transport Active transport All of these B
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To have a concentration gradient, you must find
The center of the cell Pores in the cell membrane More a of particular molecule in one location than a neighboring location 2 cell membranes in close contact C
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The structure most responsible for maintaining homeostasis
Plasma membrane Cell wall Vacuole mitochondrion A
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Metabolism Equilibrium Diffusion Passive transport
When materials pass into and out of a cell at equal rates, there is no net change in the concentration of the cell. The cell is in Metabolism Equilibrium Diffusion Passive transport B
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Passive transport Diffusion Facilitated diffusion Active transport
A cell moves particles from a region of lesser concentration to a region of higher concentration by Passive transport Diffusion Facilitated diffusion Active transport D
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Endocytosis Active transport Osmosis diffusion
In the lungs, the movement of carbon dioxide out of the cells and oxygen into the cells can best be explained by Endocytosis Active transport Osmosis diffusion D
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TRUE OR FALSE In passive transport, the movement of particles across a membrane requires energy. FALSE
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