Cells Unit Test – Flashcards
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Which of these is NOT true of cells?
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They are much like empty rooms
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Looking at a cell under a microscope, you note that it is a prokaryote. How do you know?
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The cell lacks a nucleus.
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which of the following statements about the nucleus is NOT true?
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the nucleus is the site of the protein assembly
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which structure in the cell shown in Figure 7-2 above stores material, such as water salts proteins and carbohydrates
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Structure C
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During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will
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continue to move across the membrane in both directions.
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compared to small cells, large cells have more trouble
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moving needed materials in and waste products out
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Over time, what will happen in this system?
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Water will move from left to right.
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Which of the following is NOT true?
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ATP contains less potential energy.
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In which experimental setup shown above would you expect the Elodea plant inside the test tube to produce the LEAST amount of oxygen?
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A
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What is the primary product of light dependent reactions?
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High-energy sugars.
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Which of the following is not true?
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c, carbon dioxide is released during photosynthesis and used during cellular respiration.
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Using Figure 9-1, which pairing matches the structures shown in the cell diagrams with the processes that take place within those structures?
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E: photosynthesis; D: cellular respiration
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Glycolysis requires
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ATP
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Which of the following requires oxygen?
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Electron transport chain
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which process results in the greatest atp output
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Electron transport chain
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The two main types of fermentation are called
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alcoholic and lactic acid
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when during the cell cycle are chromosomes visible
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Prophase
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Some cells form a cell plate during cytokinesis. Which of the following is true of cells in figure 10-6 above?
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Only cell B forms a cell plate during cytokinesis
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In eukaryotic cells, the timing of the cell cycle is regulated by
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cyclins
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Cancer is a disorder in which some cells have lost the ability to control their
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Growth rate
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Why are stem cells important?
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They have the potential to develop into other cell types
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cells that need to make a lot of protein are expected to have a large number of
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ribosome
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a cell's relatively constant internal physical and chemical conditions are called
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homeostasis
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a cell has 5 chromosomes in the G1 phase will have _______ chromatids in the G2 phase.
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10
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adult skin cells can no longer become other types of cells because they hae already undergone
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differentiation
