Exam 3 Study Guide Ch. 7 PDF

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Study Guide for Chapter 7...

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1. What are autotrophs An organism that produces its own nutrients from inorganic substances or from the environment instead of consuming other organisms.

2. What are Photoautotrophs and what are their examples – They use light as a source of energy and carbon dioxide as their chief source of carbon. Examples are algae, green plants

3. What is the origin of chloroplast I don’t know if this is right but, photosynthetic prokaryotes that lived inside eukaryotic cells.

4. ________ cells in leaves have chloroplast. Plant and Algae 5. CO2 enters and O2 escapes from a leaf via Stomata 6. In the chloroplast, sugars are made in a compartment that is filled with a thick fluid called the.............? Stroma 7. Chloroplasts contain disklike membranous sacs arranged in stacks called...... Grana 8. Where is chlorophyll found in a plant cell? Thylakoid membranes

9. What is the reactant as well as product of photosynthesis? Reactants: 6 H2O + 6 CO2 Products: C6H12O6 + 6O2 10. The oxygen released into the air as a product of photosynthesis comes from...? Water 11.What is the source of energy that provides the boost for electrons during photosynthesis? Light 12. A packet of energy is called ____? Quantum 13. The light reactions occur in the ________, while the Calvin cycle occurs in the ________ . Thylakoid membranes, stroma 14. What are the products of light reaction? ATP, NADPH, O₂ 15. What are the products of Calvin cycle?

16. Sunlight is a type of ________ energy. Kinetic or electromagnetic 17. Full range of electromagnetic energy is called_______________ spectrum. Electromagnetic 18. Why are most plants green?

Chlorophyll that reflects a green light 19. Plant cells are protected from the harmful effects of reactive oxidative molecules by.........? Carotenoids 20. How do the reaction centers of photosystem I and II differ? Each preferentially absorbs slightly different wavelengths of light. 21. The energy that excites P680 and P700 is supplied by___? Electrons passing down the electron transport chain 22. The electrons lost from the reaction center of photosystem II are replaced by electrons from? H2O & The electrons lost from the reaction center of photosystem I are replaced by electrons from? The bottom of the electron transport chain

23. To produce one glucose, the Calvin cycle needs to be run through ________ time(s). Six 24. Ozone consists of ________ oxygen atom(s). Three 25. Mitochondrial transfer ________ energy from ________ to ATP; chloroplasts transform ________ energy into the chemical energy of ATP. Chemical, food, light 26. The Calvin cycle constructs ________, an energy-rich molecule that a plant cell can then use to make glucose or other organic molecules.

G3P or Glyceraldehyde 3-phosphate 27. The addition of oxygen instead of carbon dioxide to RuBP results in______? Photorespiration

28. What is the main adaptive advantage of the C4 and CAM photosynthesis strategies over the C 3 strategy? They help the plant conserve water and synthesize glucose efficiently under hot, dry conditions. 29. The ultimate source of all the food we eat and the oxygen we breathe is____? Photosynthesis 30. What is the major source of ozone destruction over the past 50 years? Chlorofluorocarbons

Multiple choice questions from EOC and SA EOC Q# 12 and Explain how Electron Transport Chain connects two photosystems and generate ATP & NADPH. (page 114)

Explain How Calvin cycle generates sugar ( page 116)

Compare and contrast cellular respiration and photosynthesis with respect to stages, function, location, reactants, products in plant cells, animal cells and prokaryotic cells....