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Biology A Unit test 3

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
Most of the energy used by life on Earth comes from the   Sun  
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Organisms that are not producers   must consume other organisms to get energy  
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Light energy is converted to chemical energy through the process of   photosynthesis  
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What organism does not carry out photosynthesis   animals  
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ATP is composed of a nitrogenous base, a sugar, and   three phosphate groups.  
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ATP is called a cell's energy "currency" because   ATP can be "made" in one place and "spent" in another.  
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When a phosphate group is removed from an ATP molecule   a substantial amount of energy is released  
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The space inside the inner membrane of a chloroplast is called the   stroma  
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Chlorophyll is green because   it reflects green wavelengths of light  
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The major atmospheric by-product of photosynthesis is   oxygen  
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Because of photosynthesis   the atmosphere is rich in oxygen gas  
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The source of oxygen produced during photosynthesis is   water  
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Products of the light reactions of photosynthesis that are required by the dark reactions are   ATP and NADPH  
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What is not true about dark reactions of photosynthesis   use water as an electron source  
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The energy used in the Calvin cycle for production of sugar molecules come from   ATP and NADPH  
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Carbon dioxide is converted into organic compounds in the   Calvin cycle  
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During the final stage of photosynthesis, sugars are produced from   carbon dioxide  
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When glycolysis occurs   a molecule of glucose is split  
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The process of cellular respiration   breaks down food molecules to release stored energy  
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What is the net gain of ATP molecules in glycolysis   2  
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Cellular respiration takes place in two stages;   glycolysis, then photosynthesis  
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What is not part of cellular respiration   the Calvin cycle  
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The name of the process that takes place when organic compounds are broken down in the absence of oxygen   fermentation  
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Fermentation enables glycolysis to continue under   anaerobic conditions  
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If oxygen is absent during the second stage of cellular respiration,   fermentation will occur  
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Cells produce ATP most efficiently in the presence of   oxygen  
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What process produces the most ATP   aerobic respiration  
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Which pigment reflects purple, pink, or red light waves   Anthocyanin  
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Which pigment reflects brown and yellow light waves   Tannins  
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Which pigment reflects orange yellow light waves   Chlorophyll  
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which pigment reflects green light waves   chlorophyll  
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The Krebs cycle happens in what part of the mitochondria   Matrix  
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Which phrase best describes the function of the ATP molecule?   carries energy  
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Where does the chemical energy to produce ATP come from?   the breakdown of food into smaller molecules  
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Energy is released from an ATP molecule for cellular processes when it   has a phosphate group removed  
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Which of the following statements best describes the process of photosynthesis   Chloroplasts absorb sunlight and store chemical energy  
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What is the term for an organism that makes its own source of chemical energy   A producer  
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The main light absorbing molecules found in plant leaves are called   Chlorophyll  
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The light independent reactions of photosynthesis nee   carbon dioxide  
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Which of the following takes place in the light dependent reactions of photosynthesis   Energy is captured  
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Where so the hydrogen ions for the photosystems of the light dependent reactions come from   water  
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Which phrase best describes the electron transport chain in photosynthesis   a series of proteins located in the thylakoid membrane  
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What is the relationship between the photosystems and the Calvin cycle   The photosystems transfer energy to the Calvin cycle through ATP and NADPH  
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Which of the following types of organisms uses cellular respiration for their cellular energy needs   Eukaryotes  
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Which process breaks down sugars to make ATP when oxygen is present   cellular respiration  
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The part of cellular respiration in which glucose is broken down is called   glycolysis  
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Two products of the Krebs cycle are   ATP and CO-2  
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What provides the electron transport chain in cellular respiration with the energy it needs to function   Krebs cycle  
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Which of the following statements best describes cellular respiration   Carbon based molecules from food and oxygen are used to make ATP  
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Which of the following are end products of glycolysis?   pyruvate, NADH and ATP  
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What is the main function of the Krebs cycle?   producing molecules that carry high energy electrons to the electron transport chain  
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Which phrase about fermentation is correct   takes place without oxygen  
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Which end product of fermentation causes the burning feeling in muscles that are working hard?   lactic acid  
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