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Chemistry LibreTexts

2.1 Unit 2 Exam

  • Page ID
    184280
  • cc_profilecc.exam.v0p1qmd_assessmenttypeExaminationqmd_scoretypePercentagecc_maxattempts1
    cc_profilecc.multiple_choice.v0p1Which organelle is the storehouse for most of a cell's genetic information?mitochondrionchloroplastcentriolenucleus4100cc_profilecc.multiple_choice.v0p1Which organelles contain enzymes that break down old cell parts?centrosomeslysosomesvacuoleschloroplasts6100cc_profilecc.multiple_choice.v0p1Which organelles are unique to plant cells?ribosomesvacuoleschloroplastscentrosomes11100cc_profilecc.multiple_choice.v0p1Which process occurs inside the chloroplasts?detoxificationribosome assemblyphotosynthesisprotein synthesis15100cc_profilecc.multiple_choice.v0p1A solution that is hypotonic to a cell hasmore solutes than the cell.fewer solutes than the cell.the same concentration of solutes as the cell.too many solutes.18100cc_profilecc.multiple_choice.v0p1Which process requires no energy from the cell?exocytosisendocytosisactive transportfacilitated diffusion24100cc_profilecc.multiple_choice.v0p1Which organelles are involved in the process called endocytosis?ribosomesvesiclescentrioleschloroplasts26100cc_profilecc.multiple_choice.v0p1Which features are found in plant cells but not in animal cells?mitochondria and ribosomesvesicles and vacuolescell walls and chloroplastscentrioles and centrosomes31100cc_profilecc.multiple_choice.v0p1Which of the following phrases best describes active transport?moves substance against concentration gradientdoes not use chemical energyforms a vesicle around a large particlerelies on diffusion of materials33100cc_profilecc.multiple_choice.v0p1Which sentence best describes exocytosis?A vesicle fuses to a lysosome and its contents are destroyed.A vesicle fuses to the cell membrane and its contents enter the cell.A vesicle fuses to the cell membrane and its contents leave the cell.A vesicle fuses to the nuclear envelope and its contents enter the nucleus.39100cc_profilecc.multiple_choice.v0p1Where in plant cells are the energy-absorbing molecules for photosynthesis located?stromathylakoidsATP synthasemitochondria42100cc_profilecc.multiple_choice.v0p1What happens to the sugars that are made during photosynthesis?They move directly into an electron transport chain.They go back into the Calvin cycle.They can be used for cellular respiration.They make ATP by bonding together.47100cc_profilecc.multiple_choice.v0p1The part of cellular respiration that needs oxygen takes place inside thenucleus.mitochondria.thylakoid.cytoplasm.50100cc_profilecc.multiple_choice.v0p1Which process is best represented by the following chemical equation?<br>sugars + oxygen <img width="15" height="15" align="bottom" alt="mc018-1.jpg" src="$IMS-CC-FILEBASE$../resources/mc018-1_57310d1632a71_0.jpg" border="0"> carbon dioxide + watercellular respirationphotosynthesisglycolysisfermentation53100cc_profilecc.multiple_choice.v0p1In which process is lactic acid formed when there is not enough oxygen present for cellular respiration to take place?ATP synthasephotosystem Iglycolysisfermentation60100cc_profilecc.multiple_choice.v0p1The breakdown of which of the following provides the largest number of ATP per molecule?carbohydrateslipidsproteinscellulose62100cc_profilecc.multiple_choice.v0p1The aerobic stages of cellular respiration take place in thecell membrane.mitochondria.cytoplasm.grana.66100cc_profilecc.multiple_choice.v0p1Which process allows glycolysis to continue in the absence of oxygen?chemosynthesisphotosystem Icellular respirationfermentation72100cc_profilecc.multiple_choice.v0p1Which of the following reproduce asexually through mitosis?many multicellular eukaryotesmost unicellular prokaryotesonly unicellular eukaryotessome multicellular and unicellular eukaryotes76100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>Describe a real-life situation in which the anaerobic part of the process above might occur. Use the term fermentation in your answer. Could this process continue indefinitely? Why or why not?</p>100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>If a cell is placed in a hypertonic solution, osmosis will take place. In which direction will osmosis take place? Why? How would the size of the cell change? What would happen if the cell were placed in a hypotonic or an isotonic solution? In your answer:<br />- explain the direction of osmosis and the result when a cell is in a hypertonic solution (1)<br />- explain the direction of osmosis and the result when a cell is in a hypotonic solution (1)<br />- explain the direction of osmosis and the result when a cell is in an isotonic solution (1)</p>100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>Fermentation occurs in the cells of many organisms, including the cells of animals. Provide two examples that illustrate the importance of this anaerobic process in the world around us. In your answer:<br />- provide an example of fermentation that occurs in human cells and explain why it is important (1)<br />- provide an example of fermentation used in food production and explain why it is important (1)</p>100cc_profilecc.essay.v0p1qmd_computerscoredNo<p>Define the term <em>chromosome</em> by contrasting the terms <em>chromatin</em> and <em>chromatid</em>. Explain the function of each one in the cell cycle. In your answer:<br />- Define chromatin. Describe the point in the cell cycle where chromatin is formed, explaining what chromatin is made of. (1)<br />- Define a chromatid. Explain the point in the cell cycle where sister chromatids are formed, and explain their genetic make-up relative to each other. (1)</p>100