Why Do Leaves Change Color? Extracting Pigments From Chloroplasts.

Slides:

Advertisements

Similar presentations

1 Pigments in plants Separation of chloroplast pigments by paper chromatography Refer to the Practical Manual Unit 5: Cell Biology Practical 16.

Advertisements

What Is the Role of Pigments in Photosynthesis? Light and Pigments.

Extracting Chlorophyll Using paper chromatography

Photosynthesis and Light

Paper Chromatography of a Spinach Leaf Lab

Introduction to Plants

Photosynthesis and Cellular Respiration Notes Photosynthesis -done by autotrophs only (plants, some algae, & some bacteria) (producers-make their own food)

What Is the Role of Pigments in Photosynthesis?

Boiled Leaf Lab. Preparation:  Cut 2 one inch square pieces of thick cardboard (like cereal box)  Clip the two pieces of cardboard to a leaf still growing.

What is photosynthesis? Photosynthesis is how plants make their food by using the sun. Light comes from the sun.

Changing Colorful Leaves

Science Unit A Chapter 3 Quiz Where Are You in the Food Chain?

A Lesson by Lara and Aman

Ch. 4.2 Photosynthesis. I. The Nature of Light A. The Sun is the source of energy on Earth. 1. The light you see is white light. 2. Light passing through.

Evidence of Photosynthesis

Middle School Science Mrs. Figoten Mrs. Figoten DO LEAVES ON TREES IN ALL BIOMES CHANGE COLOR? Leaves change color seasonally only in deciduous forests.

6 th Grade Art FALL LEAVES IN WATERCOLOR.  Leaves are little food factories!  Cycle of the Leaf:  Take water from the ground  Take Carbon Dioxide.

Glass Art by Dale Chihuly Art Lesson Grade: 3 Activity: Shrinky Dink flowers Keywords: Glass Art Pattern Art Guide Prep : Supplies 2 toaster ovens (supplied.

Cellular Respiration and Photosynthesis - An Introduction

What is Chromatography? Chromatography is a technique for separating mixtures into their components in order to analyze, identify, purify, and/or quantify.

SEASONAL CHANGE Environmental Explorations Mr. Velazquez.

MISERABLE PLANTS' ANATOMY

Paper Chromatography Lab Obtain the supplies you’ll need. –1 large beaker (or plastic cup) –1 small beaker (or plastic cup) filled with water –4 pieces.

Pigment Chromatography Lab

Coffee Filter Chromatography Elementary School Fall 2012 Vanderbilt Student Volunteers for Science Training Presentation.

DNA: What do all of these plants have in common?.

Finding Hidden Colors in Leaves Dennis University of Kentucky, Center for Applied Energy Research 2540 Research Park Dr., Lexington,

DNA in My Food???. What is DNA ? Where do you find DNA?

Nicole’s Burger Cake Procedure (:. Step 1: Gather the Ingredients Ingredients: 1 Betty Crocker Devil’s food cake mix 1 French Vanilla Betty Crocker cake.

Photosynthesis. Why is it important to the plant?

High Sucrose Soybean Thin-Layer Chromatography (TLC)

Trees and Forests – Falling Leaves

Photosynthesis and why leaves change color

Organelles Ordered from Ward Science Organelles Lab Activity #36V3505 Presented by Deb Semmler St. Joseph’s High School

AUTUMN LEAF ABSCISSION

Fruit Cup DNA Extraction. Step 1 Into one of the 5 oz cups add 1 teaspoon of shampoo. Fruit Cup DNA Extraction.

Comparing Photosynthesis and Respiration

Unit 4 Chapter 3 Lessons 3 and 4 Photosynthesis And Cellular Respiration.

Why Do Leaves Change Color?. Leaves are nature’s food factories. Plants take water from the ground through their roots. They take carbon dioxide and use.

Investigation 2 Focus Question: Why Do Leaves Change Colors? developed by Caryn Dingman December Source: FOSS Living Systems Investigation 2 and.

Why Leaves Change Colors K. Wardman

Do not move to evidence 5 until instructed to do so Evidence 4.

Light Spectrum: Photosynthesis Matt, Mike, Julia.

Changing State - Condensation. Objective: Describe on the molecular level how cooling water vapor causes condensation.

Absorption Spectrum for Plant Pigments

Why Do Leaves Change Color in the Fall? Miss Liz 2009.

DNA Extraction activities/extraction/

Overview of the Experiment Purpose: To introduce students to the principles and terminology of chromatography and demonstrate separation of the pigments.

Pigment Chromatography. Plant leaves contain different color pigments that give the leaf color. Plant pigments come in many different colors but we are.

Looking at leaf stomata and plant pigments

Photosynthesis.

Why do leaves change color?

Photosynthesis.

Pigment Chromatography Lab

Is Green the Only Color Leaf

The Leaf Station.

Photosynthesis.

Pigment Chromatography Lab

Cellular Respiration and Photosynthesis - An Introduction

Fruit Cup DNA Extraction.

Cellular Respiration and Photosynthesis - An Introduction

What is inside leaves that makes them different colors?

Chapter 4 CELL ACTIVITIES.

Trees and Forests – Falling Leaves

Cellular Respiration and Photosynthesis - An Introduction

Photosynthesis and Light

Photosynthesis – Pigments and Light Day 1

13/07/ What do you need to stay alive?

Photosynthesis Chapter 8.

Photosynthesis: Pigments and the Light Reaction

Presentation transcript:

Why Do Leaves Change Color? Extracting Pigments From Chloroplasts

Materials Leaf Leaf Small clear paper cup Small clear paper cup Alcohol to fill cup approx. ½ full Alcohol to fill cup approx. ½ full Paper towel Paper towel Coffee filter Coffee filter Plastic fork or knife Plastic fork or knife

Procedure Flatten filter and place it on paper towel. Flatten filter and place it on paper towel. Using the blunt side of the knife or the fork handle, gently rub the leaf against the edge of the filter. Green chlorophyll will begin to appear on the filter. Continue until you have a good amount of green. Using the blunt side of the knife or the fork handle, gently rub the leaf against the edge of the filter. Green chlorophyll will begin to appear on the filter. Continue until you have a good amount of green. Cut from sides of green to middle of filter. Cut from sides of green to middle of filter. Place cut strip into alcohol-filled cup. Place cut strip into alcohol-filled cup.

Procedure (cont.) Allow the filter/chlorophyll to set in the alcohol for at least one hour. Allow the filter/chlorophyll to set in the alcohol for at least one hour. Remove from the alcohol and observe what happened. Remove from the alcohol and observe what happened.

Results The chlorophyll should have quickly turned the alcohol green. The chlorophyll should have quickly turned the alcohol green. After approx. 30 minutes, hidden pigments should have begun to appear. After approx. 30 minutes, hidden pigments should have begun to appear. You might see red, brown, or yellow. Colors vary, depending upon which pigments are in the particular left you are working with. You might see red, brown, or yellow. Colors vary, depending upon which pigments are in the particular left you are working with.

Why Does This Happen? The green chloroplasts mask the other pigments. They are always there. We just can’t see them until cool weather approaches and photosynthesis decreases. Without food production, the green disappears and the masked pigments appear. Eventually the leaf falls. The green chloroplasts mask the other pigments. They are always there. We just can’t see them until cool weather approaches and photosynthesis decreases. Without food production, the green disappears and the masked pigments appear. Eventually the leaf falls.