BIOL 1001 Study Guide - Carbon Fixation, Oat, Chemiosmosis

• School: LSU
• Department: Biological Sciences
• Course: BIOL 1001
• Professor: All

Document Summary

Living things need to obtain energy from outside sources. Almost all organisms obtain their energy from the sun (directly or indirectly) Photosynthesis- solar energy is trapped and stored as chemical energy in the bonds of organic molecules. Synthesis of energy-rich organic molecules (glucose) from energy-poor molecules (co2 and h2o) Uses co2 as a carbon source and light-energy as the energy source. Chloroplasts are the site of photosynthesis in plants. Chlorophyll is the green pigment that gives a leaf its color. Also, it is responsible for the absorption of the light energy that drives photosynthesis. Chloroplasts are primarily in cells of mesophyll (in the leaf interior) are the sites of ps- Co2 and h2o enter the leaf through pores called stomata (fig. Water is absorbed by the roots and transported to the leaves through the vascular bundles. Chloroplasts contain the thylakoids and the stroma (fig. Thylakoids are flattened membranous sacs inside the chloroplast. The thylakoids are arranged in stacks called grana.