Instructions Question 1 0 out of 05 points Which of the following statements

Instructions question 1 0 out of 05 points which of

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InstructionsQuestion 1 0 out of 0.5 pointsWhich of the following statements reflects what occurs in the flow of energy conversions through living systems?Answer Selected Answer:Chloroplasts burn glucose into ATP molecules during cell respiration.Response Feedback: Chloroplasts use solar energy to convert carbon dioxide and water into the chemical energy of nutrient molecules such as glucose. Mitochondria convert this chemical energy into ATP molecules, which cells use to perform chemical, transport, and mechanical work.Question 2 0 out of 0.5 pointsThe second law of thermodynamics states that all energy transformations result in more disordered energy. How do living organisms, which depend on chemical potential converting
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to kinetic energy to fuel their function, continue to live?Answer Selected Answer:they excrete the disordered molecules and lose the disordered energy as heatResponse Feedback: Living organisms must take in fresh energy to replace the energy that was converted into heat and excrete the heat and disordered molecules so that they do not buildup and cause further reactions to reach equilibrium.Question 3 0.5 out of 0.5 pointsATP releases energy when ________.Answer Selected Answer:a phosphate is removedResponse Feedback: ATP stores energy that can be used in a coupled biological reaction that requires energy. To do this ATP loses the last phosphate group converting the molecule to ADP & P.Question 4 0.5 out of 0.5 pointsEnzymes are able to speed up the rate of a reaction byAnswer Selected Answer:lowering the energy needed for the reaction to proceed.Response Feedback: Enzymes are able to overcome the energy needed to start a reaction, called the energy of activation. By doing this they make reactions happen more readily.Question 5 0.5 out of 0.5 pointsWhich of the following is not a mechanism used to move materials in and out of the cell?Answer Selected Answer:
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feedback inhibitionResponse Feedback: The plasma membrane regulates the passage of molecules into and out of thecell. Some of the key mechanisms include facilitated diffusion, osmosis, phagocytosis, pinocytosis, and active transport.Question 6 0.5 out of 0.5 pointsPickles are often preserved in a 20-30% salt solution called brine. How does this method prevent contamination by microorganisms?Answer Selected Answer:Bacteria can't survive in a hypertonic solution because they lose water.Response Feedback: Bacterial cells placed in a hypertonic solution lose water. Outside the cells, the concentration of solute is more than inside their cells themselves. The bacteria consequently lose water and shrink causing their death. This preventsthem from being able to contaminate the pickles.Question 7 0.5 out of 0.5 pointsIn the following figure, which cell exhibits the condition of plant cells that have been placed in a hypertonicenvironment?Answer Selected Answer:cResponse Feedback: Cells exposed to a hypertonic solution will cause the plasma membrane to pull away from the cell wall as the vacuole loses water.
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