One molecule of glucose is broken into two molecules of which of the following?

One molecule of glucose is broken into two molecules of which of the following? Which of the following is a measure of disorder? Conservation of energy Entropy Respiration Kinetic energy Potential energy Question 2 of 50 Glucose molecules provide energy to power the swimming motion of sperm. In this example what type of energy transformation is taking place? kinetic energy is transformed into potential energy chemical energy is transformed into potential energy kinetic energy is transformed into chemical energy chemical energy is transformed into kinetic energy none of the above Question 3 of 50 Which of the following directly provides energy for cellular work? Fat ATP DNA Sucrose C6H12O6 Question 4 of 50 Energy is transferred from ATP to other molecules by transferring which of the following? heat unit adenosine phosphate group photon spring Question 5 of 50 What is the name for specialized proteins that cause metabolic reactions to proceed at a faster rate than they normally would occur? Enzymes Fatty Acids Amino Acids Polysaccharides Nucleic Acids Question 6 of 50 What does an enzyme’s function depend on? size weight temperature shape pH Question 7 of 50 What is the name for the region of an enzyme to which a substrate binds? enzymatic substrate active denatured conformational Question 8 of 50 What is the name for substances that plug up an enzyme’s active site? induced fit factors enzyme products enzyme substrates reactants enzyme inhibitors Question 9 of 50 Diffusion is an example of which of the following? active transport endocytosis exocytosis passive transport phagocytosis Question 10 of 50 Which of the following is the best description of osmosis? Endocytosis Active transport of substances against a concentration gradient. The diffusion of nonpolar molecules. The diffusion of a solute. The movement of water across a selectively permeable membrane. Question 11 of 50 Which of the following statements describes the movement of water as a result of osmosis? Movement to the side with lower water concentration. Movement to the side with lower solute concentration. No movement across the cell membrane. Equal movement in both directions across the membrane. Movement to the side with higher water concentration. Question 12 of 50 Which of the following statements is true about diffusion? It is a process that only occurs at the cellular level. It occurs when particles spread from an area of lesser concentration to an area of higher concentration. It requires an input of energy. It proceeds until equilibrium is reached. It is the result of potential energy from atoms. Question 13 of 50 Which of the following will occur to a plant cell if it is placed in a hypotonic solution? it will pump out excess water it will undergo plasmolysis it will swell (become turgid) it will shrink it will burst Question 14 of 50 Which of the following processes results in the net movement of a substance into a cell when the substance is more concentrated INSIDE the cell than OUTSIDE the cell? Plasmolysis Osmosis Facilitated diffusion Active transport Diffusion Question 15 of 50 Which of the following statements is TRUE about active transport? Solutes are moved against their concentration gradient. It can involve the transport of ions. The cell must expend energy. ATP is used as an energy source. all of the above Question 16 of 50 What is the process called when a white blood cell engulf a bacterium? osmosis diffusion receptor-mediated endocytosis phagocytosis pinocytosis Question 17 of 50 Which of the following is the correct equation for photosynthesis? 6 CO2 + 6 H2O C6H12O6 + 6 O2 6 O2 + 6 H2O C6H12O6 + 6 CO2 6 CO2 + 6 O2 C6H12O6 + 6 H2O 6 CO2 + 6 H2O + 6 O2 C6H12O6 C6H12O6 + 6 O2 6 CO2 + 6 H2O Question 18 of 50 The products of photosynthesis serve as the reactants for which of the following processes? global warming cell division pH balance nuclear fusion cellular respiration Question 19 of 50 Which of the following absorbs light during photosynthesis? chloroplast vacuole nucleus mitochondrion rough endoplasmic reticulum Question 20 of 50 Through what structure(s) do plants obtain most of their water? Roots Interior cells Stems Leaves Stomata Question 21 of 50 What name is given to the membranous sacs found within a chloroplast? Vesicles Thylakoids Stroma Reaction centers Cristae Question 22 of 50 Which of the following converts light energy into chemical energy (sugars) through the process of photosynthesis? flagella bonds chloroplasts mitochondria ribosomes Question 23 of 50 The light reactions of photosynthesis convert ______ energy to ______ energy. ATP; NADPH chemical; electrical solar; chemical electrical; solar proton gradient; chemical Question 24 of 50 What is the role of NADP+ in photosynthesis? It is an electron carrier. It captures sunlight. It fixes water. It splits water. It reflects sunlight. Question 25 of 50 What is the function of the Calvin cycle? To oxidize glucose. To make sugar To capture sunlight. To produce carbon dioxide (COTo produce carbon dioxide (CO2) To split water. Question 26 of 50 Which of the following is an end product of photosynthesis? sunlight helium glucose water Carbon dioxide (CO2) Question 27 of 50 Which of the following is a true statement regarding a green leaf? The leaf is green because the pigments are excited. The leaf is green because the pigments absorb wavelengths of light in the green spectrum. The leaf is green because the green wavelengths have been used and discarded by the pigmented object. The leaf is green because they have interacted with sunlight. The leaf is green because the pigments reflect wavelengths of light in the green spectrum. Question 28 of 50 If a plant appears blue what wavelength of light is being reflected? Blue Orange Yellow Green Red Question 29 of 50 What name is given to a fixed quantity of light energy? Photon Spectrum Phaser Quantum Wavelength Question 30 of 50 What is one reason why plants have accessory pigment molecules like chlorophyll b and carotenoids? To absorb energy in the electromagnetic spectrum that chlorophyll a cannot chlorophyll a gets burnt out by intense summer sunlight plants cannot make enough chlorophyll a To reflect more energy To give them different colors Question 31 of 50 What compound is found at the reaction center of a photosystem? Carotenoids Chlorophyll c Chlorophyll a Chlorophyll b Phycobilins Question 32 of 50 Which of the following is true about chlorophyll b? It transfers light energy to chlorophyll a. absorbs green light. It reverses the affects of chlorophyll a. participates directly in the light reactions. All of the above. Question 33 of 50 When a molecule absorbs a photon one of its electrons is raised to which state? energetic higher excited ground quantum Question 34 of 50 Which of the following is found in both cellular respiration and in the light reactions of photosynthesis? electron transport chain Calvin cycle fermentation glycolysis citric acid cycle Question 35 of 50 What are the end products of cellular respiration? water H2O only carbon dioxide (CO2) only water (H2O) and glucose (C6H12O6) glucose (C6H12O6) only water (H2O) and carbon dioxide (CO2) Question 36 of 50 Which of these equations describes aerobic cellular respiration? Glucose + lactose galactose + water Energy + carbon dioxide + water glucose + oxygen + water Glucose lactic acid + energy Glucose + oxygen carbon dioxide + water + energy Glucose ethyl alcohol + carbon dioxide + energy Question 37 of 50 Which of the following is required in an aerobic process? ATP carbohydrates oxygen light carbon dioxide Question 38 of 50 Which of the following energy pathways is found in every living organism? glycolysis citric acid cycle lactic acid fermentation alcoholic fermentation oxidative phosphorylation Question 39 of 50 Which of the following is the main metabolic pathway in animals? anaerobic respiration lactic acid fermentation alcoholic fermentation aerobic respiration photosynthesis Question 40 of 50 Which of the following is the correct sequence of stages in cellular respiration? Citric acid cycle electron transport glycolysis Citric acid cycle glycolysis electron transport Glycolysis citric acid cycle electron transport Electron transport citric acid cycle glycolysis Electron transport glycolysis citric acid cycle Question 41 of 50 One molecule of glucose is broken into two molecules of which of the following? pyruvic acid lactic acid O2 ethyl alcohol NAD+ Question 42 of 50 ATP is produced during glycolysis. the electron transport chain. citric acid cycle A and B above. A B and C above. Question 43 of 50 Which stage of cellular respiration yields the greatest number of ATP molecules? fermentation electron transport the number is equal for all three stages glycolysis citric acid cycle Question 44 of 50 What occurs in redox reactions? cells reproduce enzymes catalyze reactions materials move through the plasma membrane electrons are lost from one substance and added to another substance isotopes form Question 45 of 50 Where in the cell do the citric acid cycle and electron transport take place? ribosomes chloroplasts cytoplasm mitochondria nucleus Question 46 of 50 Aerobic cellular respiration generates how many molecules of ______ ATP from one molecule of glucose? 12 38 6 2 1 Question 47 of 50 The term anaerobic means ______. without CO2 without bacteria without ATP without O2 with O2 Question 48 of 50 How many molecules of ATP are produced from 1 molecule of glucose during anaerobic respiration? 4 38 10 2 36 Question 49 of 50 Which of the following processes occurs under anaerobic conditions? The electron transport chain the citric acid cycle the Krebs cycle fermentation Conversion of pyruvic acid to acetyl CoA Question 50 of 50 What product does yeast produce under anaerobic conditions? Ethyl alcohol Creatine Lactic acid Glucosamine Pyruvic acid

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