Biology A Unit test 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
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| 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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Created by:
paigeperkes