Major grocery stores in the United States are organized into departments, such as dairy, meats, produce, bread, cereals, and so forth. Why do carnivores, such as lions, depend on photosynthesis to survive? In ecosystems that lack photosynthetic organisms (such as by forests burned by forest fire), organisms on all levels of the food chain die off. Course Hero is not sponsored or endorsed by any college or university. Cyanobacteria and planktonic algae can grow over enormous areas in water, at times completely covering the surface. In the light dependent reactions, when light strikes the pigments (P700 or P680) what is the immediate ATP, 3. Anaerobic respiration is actually much faster at producing ATP, but it also leads to the rapid production of dangerous waste products that need to be removed. Both start by splitting a water molecule into electrons and protons. How long lasting and stable are those covalent bonds? the The student is able to describe specific examples of conserved core biological processes and features shared by all domains s or within one domain of life, and how these shared, conserved core processes and features support the concept of common ancestry for all organisms. Include leaf anatomy and biochemical pathways in your discussion of each type of plant. Which of the following is the main difference between cyclic and noncyclic photophosphorylation? rubisco If you are redistributing all or part of this book in a print format, Want to cite, share, or modify this book? Except where otherwise noted, textbooks on this site the production of, and does not endorse this product. The student can use representations and models to analyze situations or solve problems qualitatively and quantitatively. 1 Membranes are important structural features of cells. Help our cause by, © 1999-2020, Rice University. This molecule stores the electrons used in the ETC. water The basic equation for photosynthesis is deceptively simple. The learning objectives listed in the Curriculum Framework provide a transparent foundation for the AP ® Biology course, an inquiry-based laboratory experience, instructional activities, and AP ® exam questions. The graph below illustrates the percent dry weight of different parts of a particular annual plant (plants that live less than one year) from early May to late August. When the stomata deflates, it closes, blocking water and inorganic compounds from entering the cell. The bond in the phosphate groups is what holds the energy in the ATP and when that bond is broken the free energy is released and it is back to ADP+P. ATP is adenosine triphosphate and is made of the nitrogenous base adenine, a ribose sugar, and three phosphate groups. CO2, 9. Not all free-response questions on this page reflect the current exam, but the question types and the topics are similar, making them a valuable resource for students. The student can pose scientific questions. All of this will happen inside the chloroplasts of the plant's leaf cells. a) An enzyme is specific to only certain kinds of substrates. Questions 3–5 are worth 4 points each and questions 6–8 are worth 3 points each. Although there is a large variety, each item links back to photosynthesis. Other organisms, such as animals, fungi, and most other bacteria, are termed heterotrophs (âother feedersâ), because they must rely on the sugars produced by photosynthetic organisms for their energy needs. The ecosystem surrounding the vents has a diverse array of animals, such as tubeworms, crustaceans, and octopi that derive energy from the bacteria. This book is Creative Commons Attribution License Both cellular respiration and photosynthesis produce energy for an organism. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide. After that, you end up with 6 G3P. which was not involved in the production of, and does not endorse, this product. Rate of photosynthesis will be inhibited as the level of carbon dioxide decreases. Engage students in scientific inquiry to build skills and content knowledge aligned to NGSS and traditional standards. Oxygen is generated as a waste product of photosynthesis. excess NADPH is reused in the light reaction. During this, 3 CO2 is combined with 3 RUBP with the help of the enzyme Rubisco, this will create 6 PGA. 4. AP Biology Archived Free-Response Questions and Scoring Guidelines. Photosynthesis and cellular respiration recycle oxygen in ecosystems. In a (d) deep sea vent, chemoautotrophs, such as these (e) thermophilic bacteria, capture energy from inorganic compounds to produce organic compounds.
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