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    glucose molecules provide the chemical energy cells use to carry on life processes. some energy is always lost when cells break down the glucose molecules. which statement explains how energy is lost in this process?

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    Biology Unit 4

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    Biology

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    9th - 10th Biology Unit 4

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    Show Answers See Preview 1. Multiple-choice 20 seconds 5 pts Q. Occurs in plants answer choices photosynthesis only

    cellular respiration only

    photosynthesis and cell respiration

    2. Multiple-choice 20 seconds 5 pts Q. Occurs in animals answer choices photosynthesis only

    cellular respiration only

    cellular respiration and photosynthesis

    3. Multiple-choice 20 seconds 5 pts Q.

    Which gas is removed from the atmosphere during photosynthesis?

    answer choices hydrogen oxygen nitrogen carbon dioxide 4. Multiple-choice 20 seconds 5 pts Q.

    What is cellular respiration?

    answer choices

    the breakdown of glucose to release ATP

    the breakdown of glucose to release carbon

    5. Multiple-choice 20 seconds 5 pts Q.

    Cellular Respiration's MAIN goal is to

    answer choices make water make ATP make glucose make oxygen 6. Multiple-choice 20 seconds 5 pts Q.

    The first step in getting energy in the cell by breaking down glucose is known as

    answer choices the Krebs cycle electron transport fermentation glycolysis 7. Multiple-choice 1 minute 5 pts Q.

    What is the best prediction of the relationship between light distance and the rate of photosynthesis?

    answer choices

    There is no relationship between light distance and the rate of photosynthesis.

    Distance between the light and the algae does not affect the rate of photosynthesis

    The more distance between the light and the algae the greater the rate of photosynthesis.

    The less distance between the light and the algae the greater the rate of photosynthesis.

    8. Multiple-choice 30 seconds 5 pts Q.

    Select all that are inputs for Cellular Respiration.

    answer choices Water Carbon Dioxide Oxygen

    Sunlight (Light Energy)

    Glucose (Sugar/food)

    9. Multiple-choice 30 seconds 5 pts Q.

    Select all that are outputs of Cellular Respiration.

    answer choices Water Carbon Dioxide Oxygen

    ATP (Cellular Energy)

    Glucose (Sugar/food)

    10. Multiple-choice 30 seconds 5 pts Q.

    Select all that are outputs of Photosynthesis.

    answer choices Water Carbon Dioxide Oxygen

    Sunlight (Light Energy)

    Glucose (Sugar/food)

    11. Multiple-choice 30 seconds 5 pts Q.

    Select all that are inputs for Photosynthesis.

    answer choices Water Carbon Dioxide Oxygen

    Sunlight (Light Energy)

    Glucose (Sugar/food)

    12. Multiple-choice 20 seconds 5 pts Q.

    Energy from organic molecules (glucose) can be stored in ATP molecules as a direct result of this process

    answer choices

    cellular respiration

    cellular reproduction

    diffusion digestion 13. Multiple-choice 20 seconds 5 pts Q.

    Which substance is the most direct source of energy used by animal cells?

    answer choices ATP glucose DNA starch 14. Multiple-choice 30 seconds 5 pts Q.

    The breaking of which bond in ATP powers reactions in the cell?

    answer choices Bond 1 Bond 2 Bond 3 None of these 15. Multiple-choice 45 seconds 5 pts Q.

    Which statement best describes why celllular respiration in plants, and other organisms, is dependent on photosynthesis?

    answer choices

    Photosynthesis is one of the final steps in cellular respiration

    Photosynthesis provides the materials that fuel cellular respiration

    Photosynthesis absorbs excess energy produced by cellular respiration

    Photosynthesis absorbs materials that are catalyzed during cellular respiration

    16. Multiple-choice 45 seconds 5 pts Q.

    Single celled eukaryotic organisms called yeast are useful in the breadmaking process. Which of the following processes are the most beneficial to creating gas in a food product like bread?

    answer choices

    aerobic respiration and fermentation producing lactic acid

    aerobic respiration and fermentation producing carbon dioxide and ethanol

    fermentation producing lactic acid

    fermentation producing carbon dioxide and ethanol (alcohol fermentation)

    17. Multiple-choice 30 seconds 5 pts Q.

    Reef building corals work together with photosynthetic algae that live in their tissues.

    Which type of energy is algae wihin a coral reef most likely able to use in order to survive?

    answer choices chemical mechanical radiant thermal 18. Multiple-choice 20 seconds 5 pts Q.

    Most of the concentration of this gas results from producer organisms

    answer choices nitrogen oxygen water vapor carbon dioxide 19. Multiple-choice 45 seconds 5 pts Q.

    Living organisms and artificial devices both use and store energy with various methods and structures.

    Source : quizizz.com

    Biology Test II Flashcards

    Start studying Biology Test II. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

    Biology Test II

    3.4 9 Reviews

    Animal cells perform functions using energy that is derived from glucose(C6H12O6) Which molecule is required for animal cells to obtain the most energy possible from a molecule of glucose?

    A water B oxygen C lactic acid D carbon dioxide

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    Oxygen

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    During cellular respiration, cells convert the energy stored in glucose to make the energy molecule ATP, as shown in the equation.

    https://homebase.schoolnet.com/files/assess_files/79871710-6063-4b0e-8c3e-94d9191414d6/I71745_15.jpg

    Less than 40% of the energy found in glucose is actually converted into ATP. What happens to the other 60% of this energy?

    A It is used to reform ADP.

    B It is converted to heat energy.

    C It is stored as glycogen in the liver.

    D It is converted to a smaller carbohydrate.

    Click card to see definition 👆

    It is converted to heat energy

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    Terms in this set (27)

    Animal cells perform functions using energy that is derived from glucose(C6H12O6) Which molecule is required for animal cells to obtain the most energy possible from a molecule of glucose?

    A water B oxygen C lactic acid D carbon dioxide Oxygen

    During cellular respiration, cells convert the energy stored in glucose to make the energy molecule ATP, as shown in the equation.

    https://homebase.schoolnet.com/files/assess_files/79871710-6063-4b0e-8c3e-94d9191414d6/I71745_15.jpg

    Less than 40% of the energy found in glucose is actually converted into ATP. What happens to the other 60% of this energy?

    A It is used to reform ADP.

    B It is converted to heat energy.

    C It is stored as glycogen in the liver.

    D It is converted to a smaller carbohydrate.

    It is converted to heat energy

    How do cells in the human body release energy stored in an adenosine triphosphate molecule (ATP)?

    A by releasing adenosine in ATP

    B by trapping ATP from carbohydrates

    C by breaking a phosphate bond in ATP

    D by combining ATP molecules in chlorophyll

    By breaking a phosphate bond in ATP.

    Which type of energy do muscle cells use to produce mechanical energy in the movement of an arm?

    A nuclear B radiant C thermal D chemical Chemical

    A student observes a flask containing a mixture of yeast, water, and a carbohydrate; the top of the flask is covered by a balloon. After 30 minutes, what waste products would she expect to find in the flask and balloon?

    A carbon dioxide and ethyl alcohol

    B carbon dioxide and lactic acid

    C oxygen and glucose

    D oxygen and starch

    Carbon dioxide and ethyl alcohol

    Which is the correct sequence of events during aerobic respiration?

    A electron transport chain, Kreb's cycle, glycolysis

    B glycolysis, Kreb's cycle, electron transport chain

    C Calvin cycle, electron transport chain, Kreb's cycle

    D electron transport chain, Kreb's cycle, glycolysis

    glycolysis, Kreb's cycle, electron transport chain

    Which process produces more energy than it consumes?

    A aerobic respiration

    B protein synthesis

    C anaerobic respiration

    D active transport aerobic respiration

    Which type of reaction is shown below?

    glucose → lactic acid + ATP

    A photosynthesis

    B aerobic respiration

    C cellular respiration

    D anaerobic respiration

    anaerobic respiration

    How does the site of aerobic respiration in a cell compare with the site of anaerobic respiration?

    A Both aerobic and anaerobic respiration occur in the cytoplasm.

    B Both aerobic and anaerobic respiration occur in the mitochondria.

    C Aerobic respiration occurs in the mitochondria, while anaerobic respiration occurs in the cytoplasm.

    D Aerobic respiration occurs in the cytoplasm, while anaerobic respiration occurs in the mitochondria.

    Aerobic respiration occurs in the mitochondria, while anaerobic respiration occurs in the cytoplasm.

    Glucose molecules provide the chemical energy cells use to carry on life processes. Some energy is always lost when cells break down the glucose molecules. Which statement explains how energy is lost in this process?

    A Some energy is changed back to glucose.

    B Some energy is converted into mass.

    C Some energy is converted into heat.

    D Some energy is changed into ADP.

    Some energy is converted into heat.

    Which is a difference between anaerobic respiration and aerobic respiration?

    A Anaerobic respiration requires oxygen.

    B Anaerobic respiration does not require oxygen.

    C Anaerobic respiration occurs only at the cellular level.

    D Anaerobic respiration only occurs outside of the cell.

    Anaerobic Respiration does not require oxygen

    In a human, which factor would most likely limit the production of ATP through cellular respiration?

    Source : quizlet.com

    How Cells Obtain Energy from Food

    As we have just seen, cells require a constant supply of energy to generate and maintain the biological order that keeps them alive. This energy is derived from the chemical bond energy in food molecules, which thereby serve as fuel for cells.

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    Molecular Biology of the Cell. 4th edition.

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    How Cells Obtain Energy from Food

    As we have just seen, cells require a constant supply of energy to generate and maintain the biological order that keeps them alive. This energy is derived from the chemical bond energy in food molecules, which thereby serve as fuel for cells.

    Sugars are particularly important fuel molecules, and they are oxidized in small steps to carbon dioxide (CO2) and water (Figure 2-69). In this section we trace the major steps in the breakdown, or catabolism, of sugars and show how they produce ATP, NADH, and other activated carrier molecules in animal cells. We concentrate on glucose breakdown, since it dominates energy production in most animal cells. A very similar pathway also operates in plants, fungi, and many bacteria. Other molecules, such as fatty acids and proteins, can also serve as energy sources when they are funneled through appropriate enzymatic pathways.

    Figure 2-69

    Schematic representation of the controlled stepwise oxidation of sugar in a cell, compared with ordinary burning. (A) In the cell, enzymes catalyze oxidation via a series of small steps in which free energy is transferred in conveniently sized packets (more...)

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    Food Molecules Are Broken Down in Three Stages to Produce ATP

    The proteins, lipids, and polysaccharides that make up most of the food we eat must be broken down into smaller molecules before our cells can use them—either as a source of energy or as building blocks for other molecules. The breakdown processes must act on food taken in from outside, but not on the macromolecules inside our own cells. Stage 1 in the enzymatic breakdown of food molecules is therefore , which occurs either in our intestine outside cells, or in a specialized organelle within cells, the lysosome. (A membrane that surrounds the lysosome keeps its digestive enzymes separated from the cytosol, as described in Chapter 13.) In either case, the large polymeric molecules in food are broken down during digestion into their monomer subunits—proteins into amino acids, polysaccharides into sugars, and fats into fatty acids and glycerol—through the action of enzymes. After digestion, the small organic molecules derived from food enter the cytosol of the cell, where their gradual oxidation begins. As illustrated in Figure 2-70, oxidation occurs in two further stages of cellular catabolism: stage 2 starts in the cytosol and ends in the major energy-converting organelle, the mitochondrion; stage 3 is entirely confined to the mitochondrion.

    Figure 2-70

    Simplified diagram of the three stages of cellular metabolism that lead from food to waste products in animal cells. This series of reactions produces ATP, which is then used to drive biosynthetic reactions and other energy-requiring processes in the (more...)

    In stage 2 a chain of reactions called converts each molecule of glucose into two smaller molecules of pyruvate. Sugars other than glucose are similarly converted to pyruvate after their conversion to one of the sugar intermediates in this glycolytic pathway. During pyruvate formation, two types of activated carrier molecules are produced—ATP and NADH. The pyruvate then passes from the cytosol into mitochondria. There, each pyruvate molecule is converted into CO2 plus a two-carbon acetyl group—which becomes attached to coenzyme A (CoA), forming acetyl CoA, another activated carrier molecule (see Figure 2-62). Large amounts of acetyl CoA are also produced by the stepwise breakdown and oxidation of fatty acids derived from fats, which are carried in the bloodstream, imported into cells as fatty acids, and then moved into mitochondria for acetyl CoA production.

    Stage 3 of the oxidative breakdown of food molecules takes place entirely in mitochondria. The acetyl group in acetyl CoA is linked to coenzyme A through a high-energy linkage, and it is therefore easily transferable to other molecules. After its transfer to the four-carbon molecule oxaloacetate, the acetyl group enters a series of reactions called the . As we discuss shortly, the acetyl group is oxidized to CO2 in these reactions, and large amounts of the electron carrier NADH are generated. Finally, the high-energy electrons from NADH are passed along an electron-transport chain within the mitochondrial inner membrane, where the energy released by their transfer is used to drive a process that produces ATP and consumes molecular oxygen (O2). It is in these final steps that most of the energy released by oxidation is harnessed to produce most of the cell's ATP.

    Because the energy to drive ATP synthesis in mitochondria ultimately derives from the oxidative breakdown of food molecules, the phosphorylation of ADP to form ATP that is driven by electron transport in the mitochondrion is known as . The fascinating events that occur within the mitochondrial inner membrane during oxidative phosphorylation are the major focus of Chapter 14.

    Source : www.ncbi.nlm.nih.gov

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