7 An Overview of Photosynthesis

7 An Overview of Photosynthesis - An Overview of...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
An Overview of Photosynthesis Photosynthesis is the process that captures light energy and transforms it into the chemical energy of carbohydrates It occurs in the Plasma membranes of some bacteria Cells of algae Leaves of plants
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Journey into a leaf
Background image of page 2
Journey into a leaf
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Photosynthesis takes place in three stages: 1. Capturing energy from sunlight 2. Using energy to make ATP and NADPH 3. Using ATP and NADPH to power the synthesis of carbohydrates from CO 2 Light-dependent reactions Light-independent reactions The Calvin cycle carbon dioxide + water + Light energy glucose + oxygen + water
Background image of page 4
All three stages occur in the chloroplast Journey into a leaf (continued) Contain the pigment chlorophyll, which captures light
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
How Plants Capture Energy from Sunlight Light consists of tiny packets of energy called photons Sunlight contains photons of many energy levels High energy photons have lower or shorter wavelength than low energy photons The full range of these photons is called the electromagnetic spectrum
Background image of page 6
Photons of different energy: the electromagnetic spectrum
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Are molecules that absorb light energy The pigment in human eyes is retinal Absorption: ~ 380 (violet) 750 (red) nm The main pigment in plants is chlorophyll
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/10/2008 for the course BIO 110 taught by Professor N/a during the Spring '08 term at Cal Poly Pomona.

Page1 / 24

7 An Overview of Photosynthesis - An Overview of...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online