Week 4b Photosynthesis v2-2

.pdf

School

University of California, Los Angeles *

*We aren’t endorsed by this school

Course

7A

Subject

Biology

Date

Dec 6, 2023

Type

pdf

Pages

4

Uploaded by HighnessHawkMaster2432

Name ____________________Sophia Wall____________ Photosynthesis Pre-Class Worksheet Fill out this worksheet as you complete your pre-class assignments. Bring your completed worksheet to class to use as a reference for in-class activities. After completing your pre-class assignments (Reading Ch. 8 Introduction; 8.1, 8.2, 8.3), you should be able to: Connect redox reactions to energy transformations that occur throughout photosynthesis. Identify where the different stages of photosynthesis take place. Explain how the Calvin Cycle transforms carbon dioxide into sugar and where the energy for this transformation comes from. Describe the role of Rubisco in the process of photosynthesis. Explain how light energy reaches photosystem reaction centers and what happens when it gets there. 1. Write the overall chemical reaction for photosynthesis: Energy+6CO2+12H2O=C6H12O6+6O2+6H2O Energy+Carbon Dioxide+Water = Glucose+Oxygen+Water 2. Imagine you are trying to explain the process of photosynthesis to your friend who is also taking LS7A. You show them the figure to the right. Provide an explanation for what this figure represents. Be sure to define the terms oxidation, reduction, NADPH, and any other terms in the diagram you think your friend would not already know. Oxidation- this is the chemical reaction where a molecule loses an electron and therefore releases energy Reduction- this is the chemical reaction where a molecule gains electrons and therefore energy NADPH- this is an electron carrier and reducing agent that is present in the Calvin Cycle portion of photosynthesis. This figure represents the two stages of photosynthesis, carbon fixation and light capture. These stages are crucial in order to use the energy in sunlight that is passed over to NADPH to convert carbon dioxide to carbohydrates
3. The diagram below represents a chloroplast. On the diagram, label the outer membrane, inner membrane, thylakoid membrane, thylakoid lumen, and stroma. Outer membrane- the outside layer of the double layered wall Inner membrane- the inside layer of the double layered wall Thylakoid membrane- the ovular, connected structures Thylakoid lumen- the interior compartments of the thylakoid membrane Stroma- the region inside the wall surrounding the thylakoid 4. Fill in the table below to keep track of the major events of each stage of photosynthesis. When considering reactants and products, you don’t need to keep track of all of the intermediate molecules in each pathway. Stage of Photosynthesis Where does this occur in a eukaryotic cell? What reactants are required for this process? What products are made during this process? Additional Notes Light-Harvesti ng Reactions Chloroplast NADP, ADP, Water NADPH, ATP, Oxygen There are two photosystems that are connected by an electron transport chain
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help