PhotosynthesisPhotosynthesisPhotosynthesisPhotosynthesis.

Slides:



Advertisements
Similar presentations
Photosynthesis. The overview Photosynthesis Light reaction Photosystems 1 and 2 Needs H2O, light, NADP, ADP Products are O2, NADPH, and ATP Dark reaction.
Advertisements

How plants (and some algae and bacteria) make their own food video
 Pigments of PSII absorb energy  Energy is passed to chlorophyll a (P680) of the reaction center; P680 boosts e- to primary electron acceptor  Water.
Light Reaction & Calvin Cycle Objectives: How do pigments like chlorophyll work to capture light energy? What happens to water in the light reaction? What.
LIGHT DEPENDENT REACTIONS OF PHOTOSYNTHESIS. (1) As light falls upon the pigments of the chloroplast, energy causes the electrons in photosystem II (p680)
Photosynthesis Part I: The Light Reaction Pg. 84 The Nature of Light.
PHOTOSYNTHESIS:. Photosynthesis overview: Performed by PLANTS ONLY! All photosynthesis occurs in the chloroplast! Making sunlight into energy and oxygen.
Photosynthesis Conversion of light E to chemical E (food) Conversion of light E to chemical E (food) 6 H 2 O + Light + 6 CO 2  C 6 H 12 O O 2 Light.
Chloroplast Structure. How do plants capture light energy ?
Ch 6 – Photosynthesis process that converts light energy into chemical energy supports most life on Earth found in algae, plants, some bacteria & protista.
The Light Reaction Created by Caitlynn Lied 2008 NADPH NADP+ ATP NADPH NADP+ ADP H O H H O H H O H ATP.
Photosynthesis From Solar Energy To Glucose. General Structure Of The Chloroplast.
Where does all that glucose come from? CO 2 radiant energy Photosynthesis glucose.
Objective: To discuss light waves, how plants absorb light and describe how light dependent reactions occur. 8.2 notes.
The “story” of the light reactions of photosynthesis.
The Reactions (I).  H 2 O is absorbed by the root epidermal cellsepidermal cells  Plants absorb water and carbon dioxide through stoma (a pore surrounded.
More than you ever wanted to know about Photosynthesis (part 1) Light Dependent Reactions: Photosystem II and Photosystem I.
Photosynthesis. The Light Reactions Obtaining Energy – Autotrophs- organisms that use energy from sunlight or from chemical bonds in inorganic substances.
The Reactions of Photosynthesis 8-3. Inside a Chloroplast Where photosynthesis takes place Contains thylakoids, which are sac-like photosynthetic membranes.
Light Reaction & Calvin Cycle
Chapter 8 Light Reactions. Need To Know How photosystems convert light energy into chemical energy. (There will be more on this in the next couple of.
Chap. 6 : Photosynthesis Photosynthesis – involves a series of chemical reactions where the products of one become the reactants of another …. called biochemical.
Photosynthesis Light-Dependent Reactions. Importance of Leaves Most photosynthesis occurs in the leaves.
Review Questions for Photosynthesis. Match the processes/sets of reactions with the descriptions. Each question can have more than one answer. 1.Requires.
RespirationPhotosynthesis Potpourri FINAL JEOPARDY! FINAL JEOPARDY!
Photosynthesis The Light Reaction Photosynthesis takes place in the chloroplasts in areas known as photosystems – Photosystems - complexes containing the.
Photosynthesis. Capturing the Energy in Light  Photosyntheis- process by which energy from the sun is converted to organic molecules  Plants, algae,
Today Quiz on Notes from last class -review before quiz (find your graphing handout with the questions) -take the quiz Midterm = cell respiration and photosynthesis.
Aim: What is noncyclic photophosphorylation?. Steps involved with the noncyclic flow of electrons Noncyclic electron flow, produces both ATP and NADPH.
Lesson Overview Lesson Overview The Process of Photosynthesis 8.3 The Process of Photosynthesis.
The Light-Independent Reactions (Dark Reactions) Chapter Pgs BUT FIRST! A review of yesterday’s Light-Dependent Reactions: Photosystems.
Photosynthesis is broken down into 2 parts: The Light Dependent Reactions: require sunlight; produce ATP, NADPH and O 2 The light Independent ( a.k.a.
Photosynthesis-Light Dependent. The Light Dependent Reaction  Requires light energy  Takes place in the Thylakoid membranes  Light energy is absorbed.
The Process of Photosynthesis
Photosynthesis.
Photosynthesis.
Chapter 10 Photosynthesis Pt. 2
Copyright Pearson Prentice Hall
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
Photosynthesis: The Light Reactions.
PHOTOSYNTHESIS, Part Un
Photosynthesis the process by which light energy is converted to chemical bond energy and carbon is fixed into organic compounds. The general formula is:
Photosynthesis Review
Photosynthesis.
Photosynthesis: Light Dependent Reactions
Chapter 8 Light Reactions.
The Reactions of Photosynthesis
The Process of Photosynthesis
AP BIOLOGY Photosynthesis What happens next?
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
5.2 Light Dependent Reactions
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
Photosynthesis: Light Reactions and the Calvin Cycle
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
Bellringer #1.
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
Light Dependent and Independent Reactions
The Process of Photosynthesis
Photosynthesis: Light Reaction
Photosynthesis: Photosystem II
Light Reaction – Stage 1 Photosystem – Hundreds of pigments (both chlorophyll and carotenoids) clumped together with proteins in thylakoid membrane. Job.
Light Reactions.
Section 8.2 Light Reactions.
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
Photosynthesis.
Two Reactions of Photosynthesis
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
Presentation transcript:

PhotosynthesisPhotosynthesisPhotosynthesisPhotosynthesis

ETC builds proton gradient Chemiosmosis Light Rxns Summary

Light Rxns ETC Stroma Thylakoid Space II PS II drops e - through ETC

Light Rxns ETC Stroma Thylakoid Space II

Stroma Thylakoid Space II Light Rxns ETC Chlorophyll oxidizes H 2 O’s to replace lost e - Protons collect in thylakoid space O 2 is released

Stroma Thylakoid Space II Light Rxns ETC Chemiosmosis ATP Synthase

Light Rxns Stroma Thylakoid Space III Photosystem I re-energizes electrons NADP + picks up e - (and some protons, too) ETC

Light Rxns Summary H 2 O + Light  NADPH + O 2 + ATP E + H’s E

Light Reactions Review The primary products of the light rxns are…

Light Reactions Review A high proton concentration builds up in the…

Light Reactions Review Cluster of chlorophyll molecules

Light Reactions Review Using light to make ATP

Light Reactions Review The “taxi” that carries energy and hydrogen to the dark rxns

Light Reactions Review TWO contributors to the proton gradient.

Light Reactions Review Requirements for chemiosmosis

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.