Exam 2 Practice Questions – Flashcards
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Respiration describes the exchange of gases between your blood and the air. This is different from cellular respiration, which______
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Produces ATP.
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Which of these equations describes aerobic cellular respiration?
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glucose + oxygen---> carbon dioxide+ water + energy.
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Where in the eukaryotic cell does glycolysis occur?
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Cytoplasm
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Which of the following is the correct sequence of stages in cellular respiration?
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glycolysis, citric acid cycle, electron transport.
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The electron transport chain of cellular respiration takes place in the _____ of eukaryotes.
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Mitochondria
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ATP synthase, a large protein molecule found in the inner membrane of mitochondria, plays a role in______
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Generating ATP from the energy produced by H+ ions moving through it and down their concentration gradient.
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Aerobic cellular respiration generates about_____ ATP from on glucose.
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32-38
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Anaerobic respiration produces a maximum of ______ ATP per glucose.
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2
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Which of the following metabolic pathways is common to both aerobic and anaerobic processes?
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glycolysis.
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What waste product do yeast produce under anaerobic conditions?
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ethyl alcohol and carbon dioxide.
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Lactic acid build up in muscle cells is a sigh that _________.
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not enough oxygen is reaching the muscle cells.
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A process is referred to as aerobic if it requires____
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Oxygen
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Humans are both________
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Heterotrophs and consumers.
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Photosynthetic organisms are_______
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producers that make all their own organic matter from inorganic molecules.
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The ultimate source of energy flowing into nearly all ecosystems is______
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Sunlight.
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Which of the following is found in both cellular respiration and in the light reactions of photosynthesis?
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Electron transport chain.
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_________ is the source of the oxygen gas released by photosynthesis.
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H2O
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The light reactions of photosynthesis take place________
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in the thylakoid membrane of the chloroplast.
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What two substances produced by aerobic cellular respiration and used by autotrophs during photosynthesis would be located in BOX A?
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CO2 and H20
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What two substances produced by autotrophs during photosynthesis and used by heterotrophs during aerobic cellular respiration would be located in BOX B?
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C6H12O6 and O2.
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WHich of the three stages of cellular respiration in eukaryotic cells occur in the cytoplasm?
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Glycolysis.
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Which of the following statements is TRUE?
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Carbon dioxide and water are products of aerobic respiration; ethyl alcohol or lactic acid are products of fermentation.
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Which of the following happens during glycolysis?
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Conversion of glucose (6 carbon molecule) to 2 pyruvic acid molecules (3 carbon molecules).
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When a molecule absorbs a photon, one of its electrons is raised to the_____ state.
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excited
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The shorter the wavelength of visible light, the _________.
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greater the energy.
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The color of light and the energy associated with these wavelengths that appear _________ is LEAST useful to photosynthesis.
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Green
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Which of the following is produced during the light reactions of photosynthesis?
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O2
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Through what structure do plants obtain most of their water?
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roots.
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Within the inner membrane of a chloroplast, interconnected sacs of membrane called________ are suspended in a thick fluid called_______
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Thylakoid, stroma.
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What compound directly provides energy for cellular work and is called the "cellular energy currency"?
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ATP
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The calvin cycle is sometimes called the "dark reactions." Could it take place if a plant were grown in the dark only?
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No because sunlight is needed to split water to provide electrons taken up by NADPH and hydrogen ions needed for ATP Synthase.
