fern
Uploaded by
8 SLIDES
253 VUES
80LIKES

Understanding Photosynthesis: The Energy Journey for Autotrophs and Heterotrophs

DESCRIPTION

Explore the fascinating process of photosynthesis, where autotrophs capture light energy to produce their own food via organic molecules. This biochemical pathway involves chloroplasts, which convert sunlight, water, and carbon dioxide into glucose and oxygen. The two main pathways of photosynthesis, light-dependent reactions and the Calvin cycle, illustrate the intricate energy capture and transformation. Additionally, understand the interconnected cycle of photosynthesis and cellular respiration, highlighting the roles of heterotrophs and autotrophs in sustaining life on Earth.

1 / 8

Télécharger la présentation

Understanding Photosynthesis: The Energy Journey for Autotrophs and Heterotrophs

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

Playing audio...

  1. PHOTOSYNTHESIS

  2. Getting energy to live Baby heterotroph! • Heterotrophs must consume organic molecules for energy. • Cellular respiration. • Autotrophs produce their own food molecules • Photosynthesis • Cellular respiration Autotroph

  3. Capturing the Energy in Light • Photosynthesis is an example of a biochemical pathway. • Captures light energy. • Stores energy in form of chemical bonds. • Chemical bonds are in organic compounds.

  4. Light Absorption in Chloroplasts • Chloroplasts are the structures that capture light. • Photosynthesis Reactions takes place in the chloroplasts. • Chloroplasts were once free living. (Pair share: just like…) Structure of a Chloroplast

  5. Chloroplast structure • Chloroplasts are composed of: • Double membrane. • Thylakoids. • Grana • Stroma Structure of a Chloroplast

  6. Energy For Life Processes • Photosynthesis • Raw materials are water and carbon dioxide. • Products are glucose and oxygen. • Energy source is sunlight.

  7. A series of biochemical pathways • There are 2 main biochemical pathways • light dependent • Uses electrons “excited” by sunlight for energy • has 2 phases: photosystems 1 & 2 • Takes place in thylakoid • light independent (Calvin cycle). • Uses ATP & NADPH for energy to make glucose • Takes place in the stroma Diagram of the phases of photosynthesis

  8. Cyclical processes • Photosynthesis and cellular respiration form a cycle. • Carbon dioxide & water • Oxygen & glucose • Heterotrophs • Autotrophs Photosynthesis - respiration cycle

More Related