Lecture Notes BIO 120
Popular in General Biology
Popular in Biological Sciences
This 3 page Class Notes was uploaded by Haleigh Siple on Friday October 30, 2015. The Class Notes belongs to BIO 120 at Grand Valley State University taught by Rybczynski in Summer 2015. Since its upload, it has received 29 views. For similar materials see General Biology in Biological Sciences at Grand Valley State University.
Reviews for Lecture Notes
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 10/30/15
Bio 120 Lecture Notes Oct 26th Chapter 10 Photosynthesis Lecture Notes Photosynthesis Energy transformation of light to usable energy Organisms need organic compounds Use energy are made up of carbon skeletons Autotrophs selffeeders Producers Heterotrophs feed on others Consumers Chloroplasts site of photosynthesis C02 and 02 pass easily across the membrane as they are nonpolar and ow down their gradient Chloroplasts have 2 membranes Outer Membrane Inner Membrane Mesophyll tissue in the leaf interior Stomata opening into mesophyll Where gas exchange happens Chlorophyll rolls past the stomata to collect C02 via cytoplasmic streaming Veins Water travels up glucose travels down Plants gets water from the roots root cells use glycolysis to extract energy from glucose Thylakoid Space contains protons from the Electron Transport Chain Stroma dense uid in between the chloroplast membranes Photosynthesis 6C02 6H20 Light Energy 9 C6H1205 Cellular Respiration C5H1205 602 9 6C02 6H20 ATP Plants carry out BOTH photosynthesis and respiration 2 Stages of Photosynthesis 1 Light Reactions photo Li ghtdependent Splitting of Water making of electron chain 2 Calvin Cycle synthesis Light Independent Reactions Carbon fixing reactions Bio 120 Lecture Notes Oct 26th Light Reactions not spontaneous occur in the thylakoids and include Requires light Hydrolysis Use ATP NADPH electron carrier in plants Produces 02 H ions move to the thylakoids Calvin Cycle Carbon fixation in Stroma ATP Energy NADPH reducing power Glucose Light Reactions convert solar energy to ATP and NADPH Light electromagnetic energy is organized into wavelengths the shorter the wavelength the higher the energy Photons are discrete particles pockets for energy Photosynthetic Pigments Light receptors Light is re ected transmitted or absorbed Pigments Chlorophyll absorb light energy Different pigments absorb different wavelengths of light Color seen is what is re ected Chlorophyll absorbs red and blue wavelengths Low transmittance high absorbance Chlorophyll a is the most important pigment Chlorophyll b is an accessory pigment Chlorophyll b passes energy onto chlorophyll a Electrons become excited by light energy and move farther away from its nucleus Bio 120 Lecture Notes Oct 26th A photosystem Chlorophyll Photon Light Pigment Transfer energy Reaction Center 2 chlorophyll a Primary electron receptor Photosystem 11 actually the first it was the second to be discovered P680 680 nanometers Photosystem III P700 700 nanometers The Light Reactions Z scheme occurs on the Thylakoid Membranes light photons are caught by reaction electrons become excited move away and are accepted by electron acceptor Electron Transport Chains are embedded in the Thylakoid membrane Energy is used to put together carbons carbon fixation Fixation of Carbon occurs in Stroma similar to Krebs cycle 3 phases of CalVin Cycle Fixation Reduction Regeneration of C02 receptor RuBP RuBP C02 Rubisco most abundant enzyme on the planet
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'