Exam 3: Cell Structure and Function

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The movement of substances from an area of high concentration to an area of low concentration by interacting with a carrier molecule is an example of

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What is the benefit of having some of the cellular organelles enclosed by a membrane similar to the cell membrane?

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The isolation of the internal contents of membrane-bound organelles allows them to manufacture or store secretions, enzymes, or toxins that could adversely affect the cytoplasm in general. Another benefit is the increased efficiency of having specialized enzyme systems concentrated in one place. For example, the concentration of enzymes necessary for energy production is in the mitochondrion.

A process that requires ATP energy to move a substance independently of its concentration gradient is called

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  Using the figure above, identify the labeled part. -Label E: ________ Using the figure above, identify the labeled part. -Label E: ________

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The process by which vesicles containing fluid are formed on the surface of a cell for transport into the cell is called

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The nucleus is surrounded by a membrane called the _________________________.

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  Using the figure above, identify the labeled part. -Label N: ________ Using the figure above, identify the labeled part. -Label N: ________

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The process by which molecules such as oxygen are moved into cells along their concentration gradient directly through the cell membrane is called

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Cilia are found

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One function of the nucleolus is to produce _________________________.

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The stage in a cell's life cycle in which the chromosomes are at opposite poles of the cell and the cellular cleavage is nearly complete is called

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A solution that contains a higher solute concentration than the cytoplasm of a cell is called

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  Using the figure above, identify the labeled part. -Label Q: ________ Using the figure above, identify the labeled part. -Label Q: ________

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  Using the figure above, identify the labeled part. -Label H: ________ Using the figure above, identify the labeled part. -Label H: ________

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Facilitated diffusion differs from ordinary diffusion in that facilitated diffusion

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The process by which cells become specialized is called _________________________.

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Which of the following is an example of a membranous organelle?

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Transcription occurs in the

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Three base sequences that indicate a specific amino acid on mRNA are called

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Which of the following are cylindrical extensions of the plasma membrane?

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