1 / 7

8.1 Overview of Photosynthesis

Learn how photosynthesis converts solar energy into chemical energy in organisms, with autotrophs producing organic molecules using pigments to capture sunlight. Discover how flowering plants carry out photosynthesis in their green leaves, absorbing light energy to create glucose and oxygen. The process contains two sets of reactions: light reactions and the Calvin Cycle. Compare photosynthesis with cellular respiration in plant and animal cells, noting they both use electron transport chains and ATP production, but with photosynthesis reducing CO2 to carbohydrates and releasing O2, while respiration uses O2 and produces CO2.

gfloyd
Download Presentation

8.1 Overview of Photosynthesis

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

  1. 8.1 Overview of Photosynthesis • Photosynthesis converts solar energy into chemical energy. • Organisms that carry on photosynthesis are called autotrophs. • Heterotrophs are organisms that feed on other organisms. • Autotrophs and heterotrophs use organic molecules produced by photosynthesis • Pigments allow photosynthetic organisms to capture solar energy.

  2. 8.1 Overview of Photosynthesis • Flowering Plants as Photosynthesizers • Photosynthesis occurs in the green parts of plants • Leaves contain mesophyll tissue specialized for photosynthesis • Water is taken up by roots and transported to leaves by veins • Carbon dioxide enters through openings in the leaves called stomata • Light energy is absorbed by chlorophyll and other pigments in thylakoids of chloroplasts

  3. Leaves and Photosynthesis

  4. 8.1 Overview of Photosynthesis • Photosynthetic Reaction • Solar energy + 6CO2 + 6H2O  C6H12O6 + 6O2 • Glucose and oxygen are the products of photosynthesis • The oxygen given off comes from water • CO2 gains hydrogen atoms and becomes a carbohydrate

  5. 8.1 Overview of Photosynthesis • Photosynthesis consists of two sets of reactions • Photo refers to capturing light • Synthesis refers to producing a carbohydrate • The two sets of reactions are called the: • Light Reactions • Calvin Cycle Reactions

  6. 8.5 Photosynthesis Versus Cellular Respiration • Both plant and animal cells carry out cell respiration • Only plant cells photosynthesize • Both processes utilize an electron transport chain and chemiosmosis for ATP production • Photosynthesis reduces CO2 to carbohydrates and releases O2 • Respiration utilizes O2 and gives off CO2

  7. Photosynthesis and Respiration Compared

More Related