BIOL3149 Study Guide - Quiz Guide: Thylakoid, Light-Dependent Reactions, Cyanobacteria
Document Summary
Septum forms when replication of the dna termination site triggers growth of the dividing partition of the envelope. Also called phototrophs their goal is to collect light as much light as possible to drive photosynthesis. They have an extensively folded intracellular membrane which is called a thylakoid: the folds maximize the collecting area of their photosynthetic membrane. Tylakoids are made up of layers of lamellae, chlorophyll and electron carries: they only conduct the light reactions of photon absorption and energy storage. Energy that is obtained from light is spent to fix carbon dioxide converting it to sugar, this process occurs within carboxysomes. Phototrophs can digest their folds (thylakoids) for energy and nitrogen when they are starving and they can also digest energy rich materials from storage granules. Types of storage stores include sulfur granules which are made up of elemental sulfur.
