biology 1308, chapter 8, photosynthesis photosynthesis converts solar energy into chemical energy....

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Biology 1308, Chapter 8, 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

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Page 1: Biology 1308, Chapter 8, Photosynthesis Photosynthesis converts solar energy into chemical energy. Organisms that carry on photosynthesis are called autotrophs

Biology 1308, Chapter 8, 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.

Page 2: Biology 1308, Chapter 8, Photosynthesis Photosynthesis converts solar energy into chemical energy. Organisms that carry on photosynthesis are called autotrophs

Biology 1308, Chapter 8, Photosynthesis

Flowering Plants as PhotosynthesizersPhotosynthesis 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

Page 3: Biology 1308, Chapter 8, Photosynthesis Photosynthesis converts solar energy into chemical energy. Organisms that carry on photosynthesis are called autotrophs

Biology 1308, Chapter 8, Photosynthesis

Page 4: Biology 1308, Chapter 8, Photosynthesis Photosynthesis converts solar energy into chemical energy. Organisms that carry on photosynthesis are called autotrophs

Biology 1308, Chapter 8, 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 (Glucose)

Page 5: Biology 1308, Chapter 8, Photosynthesis Photosynthesis converts solar energy into chemical energy. Organisms that carry on photosynthesis are called autotrophs

Biology 1308, Chapter 8, Photosynthesis

Photosynthesis consists of two sets of reactions

Photo refers to capturing light

Synthesis refers to producing a carbohydrate

Page 6: Biology 1308, Chapter 8, Photosynthesis Photosynthesis converts solar energy into chemical energy. Organisms that carry on photosynthesis are called autotrophs

Biology 1308, Chapter 8, Photosynthesis

Light ReactionsPhotosynthesis takes place in chloroplasts.Light reactions consist of two alternate electron pathways:

Noncyclic electron pathwayCyclic electron pathway

Both pathways transform solar energy to chemical energyBoth pathways produce ATP (Energy)The noncyclic pathway also produces NADPH (Reducing power – to make Carbohydrate from Carbon dioxide)

Page 7: Biology 1308, Chapter 8, Photosynthesis Photosynthesis converts solar energy into chemical energy. Organisms that carry on photosynthesis are called autotrophs

Biology 1308, Chapter 8, Photosynthesis

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

Page 8: Biology 1308, Chapter 8, Photosynthesis Photosynthesis converts solar energy into chemical energy. Organisms that carry on photosynthesis are called autotrophs

Biology 1308, Chapter 8, Photosynthesis

Photosynthesis and Respiration Compared

Introduction to Photosynthesis · Photosynthesis at MIT. Photosynthesis producers convert solar energy into chemical energy (glucose) Autotrophs/ Producers. Photosynthesis Equation

Photosynthesis · • Photosynthesis – Capturing solar energy to convert to chemical energy stored in organic compounds such as sugar • *Autotrophs make their own food, but aren’t

Photosynthesis Photosynthesis. I. How do living things get the energy they need to live? Photosynthesis: The process by which plants (autotrophs) and

Cell Energy: Photosynthesis. Where Does Energy Come From? Autotrophs: Use light energy from the sun to produce food necessary to give them energy

Photosynthesis - scott.k12.ky.us · photosynthesis forms the basis of the ecological pyramid. AP Biology Energy needs of Life Autotrophs (Plants) produce their own energy (from “self”)

Photosynthesis. Autotrophs vs. Heterotrophs Autotrophs Organisms that use the sun’s energy to make their own food Plants Some bacteria Heterotrophs Organisms

PHOTOSYNTHESIS: USING LIGHT TO MAKE FOOD. PHOTOSYNTHESIS: USING LIGHT ENERGY TO MAKE FOOD HETEROTROPHS VS AUTOTROPHS? AUTOTROPHS (A.K.A ?) – DEFINITION?

Photosynthesis. Ecological Significance Photosynthesis- the process that converts light energy to chemical energy Autotrophs- “self + feeders”

Photosynthesis. Energy & Life Energy, energy, ENERGY! Autotrophs vs. heterotrophs

Photosynthesis Chapter 10 Energy source Autotrophs: Producers Make own organic molecules Heterotrophs: Consumers

Photosynthesis Turning Light into Life. What is Photosynthesis? Autotrophs convert Sunlight Sunlight to Chemical Energy

Photosynthesis Chapter 8. Autotrophs vs. Heterotrophs Autotrophs: Plants and some other types of organisms that use light energy from SUNLIGHT to

Photosynthesis. Energy Autotrophs Use energy from sun to make their own food Heterotrophs Cannot make their own food, so they eat autotrophs or other

Photosynthesis. Photosynthesis in Overview Process by which plants and other autotrophs store the energy of sunlight into sugars. Requires sunlight, water,

Plant Pigments Ch 10 – Photosynthesis. Autotrophs Photoautotrophs, chemoautotrophs

Photosynthesis. 1. An Overview of Photosynthesis & Respiration 2. Autotrophs and producers 3. Electromagnetic Spectrum & light energy 4. Chloroplasts:

Photosynthesis. Getting Energy Autotrophs- make their own energy (usually from the sun) Ex. plants Heterotrophs- get energy from other organisms Ex. animals,

Chapter 8 Photosynthesis. I./2. Some organisms are producers and others are consumers. a)Autotrophs a)Autotrophs make their own energy from inorganic

Chapter 6 Photosynthesis Section 6.1. Energy Processes for Life Autotrophs manufacture their own food from inorganic substances Autotrophs manufacture

PHOTOSYNTHESIS Photosynthesis in Nature - Mrs ...mrsmonarchatwest.weebly.com/.../photosynthesis_notes.pdfPHOTOSYNTHESIS! Photosynthesis in Nature! 1. !Plants and other autotrophs are

Where it Starts--Photosynthesis Obtain energy Autotrophs Heterotrophs Metabolism—biochemical processes release energy Photosynthesis Cellular

PHOTOSYNTHESIS Using light to make food. PHOTOSYNTHESIS Autotrophs are the producers of the biosphere –Plants are autotrophs Producing their own food

Chapter 8 Photosynthesis. Autotrophs vs. Heterotrophs Autotrophs are organisms that can make their own food ◦ Use light energy from the sun to produce

Photosynthesis. Energy & Life Energy – the ability to do work; all living things depend on energy Sun = main source Autotrophs – producers; have

Energy and Ecology Ecosystem Components Producers – Basis of an ecosystem’s energy – Autotrophs: perform photosynthesis to make sugars – Chemotrophs:

Photsynthesis/Respiration. Radiant energy carbohydrates Respiration How energy flows through the ecosystem Photosynthesis Heterotrophs Autotrophs heat

Chapter 6 Photosynthesis 6.1 Autotrophs- make their own energy Heterotrophs – have to consume energy

PHOTOSYNTHESIS. “LIFE from LIGHT and AIR” PRODUCERS/AUTOTROPHS – CONVERT LIGHT ENERGY TO CHEMICAL ENERGY; SYNTHESIZE ORGANIC MOLECULES CONSUMERS/HETEROTROPHS

1 Photosynthesis Energy & Life. 2 Autotrophs Autotrophs include organisms that make their own foodAutotrophs include organisms that make their own food

Cellular Respiration Chapter 7. Obtaining Food Autotrophs – producers – photosynthesis Autotrophs – producers – photosynthesis Heterotrophs – consumers

Photosynthesis Chapter 8. 8-1: Energy & Life What is energy? The ability to do work. What is the difference between autotrophs & heterotrophs? Autotrophs

Chapter 8 Photosynthesis. 8-1 Energy and Life Autotrophs Make their own food 8-1 Energy and Life

1. Photosynthesis –Energy from Sunlight –Photosynthesis - the process by which autotrophs convert sunlight into a usable form of energy. (Food!!!) 2

Photosynthesis & Cellular Respiration Chapter 9. The Need for Energy (9.1) All organisms need ENERGY Plants (autotrophs) obtain energy from the sun Other

PHOTOSYNTHESIS Providing Energy for Life. Do you remember food web terminology? Autotrophs = producers Autotrophs = producers Photoautotrophs Photoautotrophs