We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byAriel Lathrop
Modified about 1 year ago
4.7 (b) To investigate the influence of carbon dioxide concentration on the rate of photosynthesis
Before you start get or make a copy of this Table of results NaHCO 3 concentration (No. of bubbles / min) Trial 1Trial 2Trial 3Average
Step 1 Fill each boiling tube with a different concentration sodium hydrogencarbonate solution and label.
Step 2 Put the boiling tubes in a water bath at 25°C until they reach this temperature.
Step 3 Cut the stem of the elodea at an angle. Remove several leaves from the cut end of the stem.
Step 4 Hook a paper clip onto the end of the elodea. Drop the elodea, stem up, into the boiling tube containing the 0.02% solution.
Step 5 Place the boiling tube containing the elodea into a water bath at 25°C.
Step 6 Switch on the light source and place the water bath containing the elodea 15 cm from the lamp. Wait for 5 minutes.
Step 7 Observe bubbles being released from the cut end of the stem. Count and record the number of bubbles released per minute. Repeat twice and get an average.
Step 8 Repeat the experiment using the different concentrations of sodium hydrogencarbonate solution.
Table of results: NaHCO 3 concentration (No. of bubbles / min) Trial 1Trial 2Trial 3Average
Expected Graph Rate of Photosynthesis Carbon dioxide concentration
4.7 (a) To investigate the influence of light intensity on the rate of photosynthesis.
In What happens to a carbon atom over time?
Influencing the Rate of Photosynthesis Purpose: To find out how the of presence light and the intensity of it contributes to the rate of photosynthesis.
Block In What are similarities between photosynthesis and cellular respiration? What are differences between photosynthesis and cellular respiration?
Photosynthesis A Lesson by Lara and Aman. Questions? How do plants make food? How do plants make food? How do plants make food? How do plants make food?
Experiment Questions Photosynthesis. Name the plant that you used. Elodea or other correctly named aquatic plant.
Oxygen Production D. Crowley, Oxygen Production To know that oxygen is produced during photosynthesis Tuesday, May 19, 2015.
Managing Science Projects Phase 1 – Creating Science Fair ideas Phase 2 – Planning Phase 3 – Collecting Data and Analyzing Results Phase 4 – Creating the.
Comparing Photosynthesis and Respiration The most important chemical reaction in the world is… The chemical reaction for photosynthesis is PHOTOSYNTHESIS.
Measuring photosynthesis by oxygen evolution In this experiment you are going to use the aquatic plant Cabomba to observe bubbles of oxygen which are released.
4.3 (b) To investigate the effect of pH on catalase activity.
4.8 To prepare and show the production of alcohol by yeast.
4.3 (a) To investigate the effect of pH on amylase activity.
Photosynthesis in one sentence (5 marks) Photosynthesis is a chemical reaction that takes place in the chloroplasts in green plant cells, where light energy.
1 How do environmental factors affect the rate of photosynthesis? Light intensity The effect of light intensity on the rate of photosynthesis.
Team F: Daiki Takaoka Sunny Heo Zen Dang Mao Takazawa Matthew Scott Andy Chung.
4.4 (a) To investigate the effect of temperature on amylase activity.
Today’s lesson Introduction to photosynthesis Photosynthesis 1 lab.
Evidence of Photosynthesis. Background Information Photosynthesis is the process during which a plant’s chlorophyll traps light energy and sugars are.
Osmosis L.O: to define osmosis to investigate osmosis Starter: Define osmosis and state how it is different to diffusion.
What can you smell? I´m going to spray some perfume in the corner of the room As soon as you can smell it stand up Now you have 2 min explain what just.
Coin Drop Lab. Procedure: 1. Fill your dropper with water. 2. Hold the dropper 1cm above the surface of the coin, perpendicular to the coin. 3. Count.
BW- Paper Lab BACKGROUND: In water, carbon dioxide dissolves to form a weak acid. As a result, an acid-based indicator such as bromothymol blue can be.
Human Physiology ISA – ISA 1 Amylase Action. Enzyme Reactions.
Photosynthesis & Respiration Lab What is the relationship between photosynthesis and respiration?
Syllabus -- Objectives Chapter 11 Photosynthesis Syllabus -- Objectives Define the term: photosynthesis. Express photosynthesis as a balanced reaction.
Exercise #6 PHOTOSYNTHESIS photosynthesis In the process of photosynthesis, several energy transformations take place. -Light energy is captured by plant.
Bell work Explain the difference between a product and a reactant. Give at least 1 real life example of each.
Data Skills. How does CO 2 concentration affect rate of photosynthesis? Carbon dioxide was added to the water in varying concentrations After setting.
Starch formation and photosynthesis - what is the relationship?
Do plants use CO 2. Investigative Question Will the aquatic plant (Elodea) fix the carbon from carbon dioxide in the water it is placed in?
AP Biology Investigation 5: Photosynthesis. Lab Notes General summary equation for photosynthesis: 2H 2 O + CO 2 + light carbohydrate (CH 2 O) + O 2.
4.13 (b) To investigate the effect of exercise on the pulse rate of a human.
Photosynthesis Lab. Lab Objectives To explain and observe photosynthesis using spinach leaves To understand the methods and tools used in a simple experiment.
Chlorophyll Scientific Enquiry Dave Crowley, 2008.
10/28/15 and 10/29/15 1.Activity Reading Photosynthesis Relay Race HOMEWORK: Have a Spooky Weekend!!!
4.1 (a) To conduct a qualitative test for starch.
BUBBLES LAB Friday, September 19, 2014 IWBAT: analyze and evaluate appropriate charts, graphs, and tables. IWBAT: use SI units for measurement. IWBAT:
Photosynthesis Lab. Introduction: Green plants use the sun’s energy to make glucose. A reactant is CO 2 gas! CO 2 + H 2 O makes a weak acid. The pH indicator.
1. To test for the presence of Starch 1.Place 2ml of starch solution in a test tube 2.Add a few drops of iodine solution using a dropper 3.Shake the test.
Photosynthesis How do you maximize the oxygen is being produced?
Photosynthesis Inquiry Academy of the Sacred Heart 8 th grade.
PHOTOSYNTHESIS 8 th Grade Science Standard 2.4. Photosynthesis and cellular respiration are important processes by which energy is acquired and utilized.
Photosynthesis Lab - Elodea & Bromothymol Blue. Photosynthesis Lab Background In this lab, we will investigate the process of photosynthesis. We will.
Sarah Huggens LIMITING FACTORS OF PHOTOSYNTHESIS “THE FACTOR THAT IS PRESENT AT THE LOWEST OR LEAST FAVOURABLE VALUE.”
BUBBLES LAB Monday, September 21, 2014 IWBAT: analyze and evaluate appropriate charts, graphs, and tables. IWBAT: use SI units for measurement. IWBAT:
Independent Project on Photosynthesis Anais, Jaswanth, and Christina.
Study Hall (8:45 – 9:15) Sharpen all pencils, grab your notebook, ready to begin.
Limiting Factors in Photosynthesis IGCSE Combined Science.
© 2017 SlidePlayer.com Inc. All rights reserved.