How Photosynthesis Works

Slides:



Advertisements
Similar presentations
Photosynthesis The Flow of Energy.
Advertisements

PHOTOSYNTHESIS.
6-1 Notes: Light Reactions
8.2 & 3 The Process of Photosynthesis. Key Questions What happens during the Light Dependent Reactions? What happens during the Light Independent Reactions?
Chloroplasts 1. plants (leaves) 2. algae. ADP + Pi + energy*  ATP* *Light energy from the sun Energy captured from sunlight This energy used to drive.
PHOTOSYNTHESIS USES LIGHT ENERGY TO MAKE FOOD
Photosynthesis. Energy Autotrophs Use energy from sun to make their own food Heterotrophs Cannot make their own food, so they eat autotrophs or other.
HW: Complete Review questions for Section 5-1 & 5-2. Due on Friday.
Using Light Energy to Make Food
Photosynthesis “The light and dark reactions” General formula for photosynthesis Light + water + carbon dioxide = glucose + oxygen.
PHOTOSYNTHESIS Do Now: What is an autotroph?
Photosynthesis Absorption of Light.. What is photosynthesis? Absorption of light in the mitochondria that produces glucose. Chloroplasts capture light.
Photosynthesis.
Trapping Light Energy to Build Carbohydrates
Photosynthesis. 1. Mesophyll A layer of cells that contain & are responsible for most of the plant’s photosynthesis chloroplasts Page 2.
Photosynthesis. What is it? Photo – light Synthesis – to make The process of converting light energy to chemical energy and storing it as sugar.
Photosynthesis Cellular Energy Unit Part I. Autotrophs  Producers  Photosynthesizing plants, bacteria, and some eukaryotic single celled organisms.
Photosynthesis and Chemosynthesis. Energy in a cell  Cells need energy to:  Grow  Reproduce  Live  Energy for these reactions can be stored in glucose.
What is Photosynthesis?
Photosynthesis.
4.3 Photosynthesis in Detail KEY CONCEPT Photosynthesis converts light energy is captured and used to build sugars that store chemical energy.
Photosynthesis. Photo = Light Synthesis = the making of something.
Photosynthesis Biology 2 D. Mitchell. . All life requires energy All life requires energy Almost all energy for life is derived from the sun. Almost all.
Photosynthesis Occurs in plants: Autotrophs. A process in which plants convert light energy from the sun into chemical energy in the form of organic compounds.
Photosynthesis (Ch. 8) 1. ATP (for energy!) ATP = adenosine triphosphate ATP is the molecule that DIRECTLY provides energy to do cellular work Chemical.
Photosynthesis The process of capturing, converting and storing energy from the sun by green plants.
ATP Adenosine Triphosphate. It is the energy molecule of the body. The three phosphates are negative and want to break free of each other. ATP gives energy.
Photosynthesis Chapter 6. Obtaining Energy  Almost all of the energy in living systems comes from the sun.
Photosynthesis Trapping Light Energy to Build Carbohydrates.
Cell Energy: Class Notes 2 Photosynthesis Part 1.
Photosynthesis. Trapping Energy from Sunlight Photosynthesis – is the process plants use to trap the sun’s energy and build carbohydrates, called.
Cell Energy: Photosynthesis & Respiration
It’s Not Easy Being Green! (Photosynthesis – Part 1)
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
‘The light at the end of the tunnel’
Trapping Light Energy to Build Carbohydrates
Independent and Dependent Reactions
Photosynthesis.
It’s Not Easy Being Green! (Photosynthesis – Part 2)
Leaf Anatomy. KEY CONCEPT The overall process of photosynthesis produces carbohydrates that store chemical energy.
Remember! In order to carry out cellular processes, cells need ENERGY.
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
Photosynthesis.
Photosynthetic organisms are producers.
Photosynthesis.
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.
Harvesting Light Energy
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
Photosynthetic organisms are producers.
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
Photosynthesis.
Photosynthesis Biology 2 D. Mitchell.
Photosynthesis.
Photosynthesis.
Photosynthesis!!.
How is energy from the sunlight transferred into chemical energy?
Photosynthesis in detail
Photosynthesis.
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
8.2 Photosynthesis: An Overview
Photosynthesis.
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
Converting Light Energy into Chemical Energy
Chapter 9 Energy in a Cell
Two Stages of Photosynthesis:
KEY CONCEPT Photosynthesis requires a series of chemical reactions.
Presentation transcript:

How Photosynthesis Works

Base Race Photosynthesis Light Reaction Chlorophyll Calvin Cycle Thylakoid membrane Light Energy H+ ions Chemical Energy Electron Transport Chain Light Reaction Calvin Cycle Chloroplast Stroma NADPH Electrons ATP

Chemical formula for photosynthesis 6CO2 + 6H2O + light C6H12O6 + 6O2 chlorophyll Carbon dioxide enzymes Water Energy Carbohydrate (glucose) Oxygen

Three stages of Photosynthesis Energy is captured from sunlight 2. Light energy is converted to ATP and NADPH (chemical energy) 3. ATP and NADPH provide energy for the synthesis or organic compounds (glucose)

Chloroplast Structure Thylakoid: houses pigments Grana: stacks of thylakoids Stroma: liquid between grana Grana

Stage 1– Energy captured from sunlight It is the pigments in the thylakoids that absorb the light energy from the sun Two common pigments include: Chlorophyll reflects green light Carotenoids  reflect yellow and orange light Q: Why are broccoli green and carrots orange? A: Broccoli uses chlorophyll and carrots use carontenoids

Stage 2—Light Energy Chemical Energy “Light Reactions” These reactions take place in the thylakoids. Q: What do the thylakoids house that make them good candidates for the light reactions of photosynthesis? A: Pigments that absorb light energy like chlorophyll

Energy from the sun is absorbed and electrons are excited 2. Water is split into hydrogen and oxygen The oxygen is released 3. Electrons move through the “electron transport chain” ATP and NADPH are released

Stage Three– Chemical Energy Organic Compounds “Calvin Cycle” or dark reactions, light independent reactions Take place in the stroma of the chloroplast.

Carbon Fixation takes place Carbon from carbon dioxide is converted into carbohydrates (glucose) 2. Requires ATP and NADPH from light reactions

References http://www.cix.co.uk/~argus/Dreambio/photosynthesis/photosynthesis%201.htm http://staff.jccc.net/pdecell/photosyn/chlorpla.html http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20101 /Bio%20101%20Lectures/Photosynthesis/photosyn.htm

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

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