Review Questions Exam 2 Although I try to cover all materials thoroughly in these questions‚ anything covered in lecture may appear on the exam. Membrane Transport 1. Describe the cell permeability and membrane transport. What can enter/exit the cell on its own? What requires assistance? Why? 2. Describe membrane potential. What is it? How is it established? How does it influence the transport of charged molecules? What are the components of the electrochemical gradient?
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Cell Energy Worksheet Answer the following questions: Cellular respiration: What is cellular respiration and what are its three stages? Cellular respiration is the metabolic process that releases stored energy from the bonds of organic molecules‚ mainly glucose. There are three stages: 1) Glycolysis 2) Krebs Cycle (Citric Acid Cycle) 3) Electron Transport Chain What is the role of glycolysis? Include the reactants and the products. Where does it occur? Glycolysis splits the glucose
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Section 6: Metabolism Reading: Chapter 6‚ concepts 6.1‚ 6.2‚ 6.3 and 6.4 Watch and learn: How do photosynthesis and cellular respiration relate to one another? http://youtu.be/0IJMRsTcwcg Cellular respiration http://youtu.be/Gh2P5CmCC0M Basic Key Concepts After completing the readings and practice exercises‚ students should be able to: Describe the two mechanisms of ATP synthesis. Describe the location‚ steps‚ and inputs and products of: glycolysis the oxidation of pyruvate the
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Program Material Cell Energy Worksheet Answer the following questions: Cellular respiration: • What is cellular respiration and what are its three stages? Cellular respiration is the aerobic harvesting of energy from food molecules. The first stage of cellular respiration is Glycolysis. The second stage of cellular respiration is the citric acid cycle. Lastly‚ the third stage of cellular respiration is the electron transport. • What is the role of glycolysis? Include the reactants
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organization Anaerobic respiration: NOT O2 Aerobic respiration: O2 final acceptor ATP is produced by the Proton Motive Force Chemiosmosis H+ accumulates outside‚ OH- inside resulting in energized state When H+ enters‚ ATP is generated *Heterotrophy (i.e.‚ chemoheterotrophy) is the use of an organic compound as a source of carbon and energy. *Lithotrophy is the use of an inorganic compound as a source of energy. Energy-Generating Metabolic Pathways 1) Aerobic respiration a) Heterotrophic
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degree of specialisation than eukaryotic Question 6 Anaerobic pathways of ATP production: a) Produce ATP in the absence of oxygen b) Produce ATP without glucose c) Occur in the mitochondria of the cell d) Produce more ATP than aerobic pathways Question 9: Both facilitated transport and active transport across cell membranes involve: a) Energy expenditure b the cell b) Movement of a substance down its concentration gradient from high concentration to low c) Proteins in
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PLANT SYSTEMS QUESTION 1979:L. PETERSON/AP BIOLOGY In relation to plants‚ describe in detail one way of: a) measuring the rate of transpiration b) measuring the rate of photosynthesis c) separating pigments Essay : Transpiration is the loss of water vapor from land plants into the atmosphere‚ causing movement of water through the plant from the soil to the atmosphere via roots‚ shoot and leaves‚ which occurs mainly through the stomata. Factors which can affect the rate of transpiration are
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Mitochondrion Mitochondrion is an organelle found both in plant and animal cells which provides energy to the cell by cellular respiration. The structure of mitochondrion‚ cellular respiration and the endosymbiotic theory will be discussed in this essay. In comparison with some of the other organelles within the cell‚ mitochondria serve some unique purposes in the function of the cell. Structure As known‚ all organelles have different important structures. Mitochondrion consists of an outer membrane
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cells‚ so insulin‚ a hormone which is carried in blood plasma and that binds to receptor sites on liver and muscle cells which causes the cells to become more permeable to glucose allowing the glucose to then be oxidised within the cell during aerobic respiration to produce ATP. ATP is then broken down to provide energy for everyday activities such as walking‚ or talking. Excess glucose is converted into glycogen and stored in the liver and muscle tissue that can then act as an instant energy source
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Chapter 9 Study Guide 1. Explain the difference between aerobic respiration and fermentation. Fermentation is partial degradation of sugars that occurs without oxygen. Aerobic respiration consumes organic molecules and oxygen and yields ATP. 2. Diagram for photosynthesis and respiration 3. What are redox reactions? What is the difference between reduction and oxidation reactions? Redox reactions are chemical reactions that transfer between reactants. In oxidation‚ a substance loses
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