AP Biology Photosynthesis Lab Bethany Boyer Due 11/12/14 Lab Write-Up Questions First Experiment 1) The independent variable in this experiment was the presence of CO2 (carbon dioxide). The dependent variable was the speed at which the leaf disks started to float. 2) In the leaf tissue‚ the bicarbonate and light are combining to carry out photosynthesis. This will cause oxygen to collect in the leaf tissue‚ causing it to rise. 3) If we were to boil the leaf disks‚ the reaction would most likely
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Why are some colors of light more effective than other colors? Answer Photosynthetic saturation is the maximum rate of photosynthesis. What was the value for photosynthetic saturation in tomato leaves? Answer Light quality does not effect the rate of photosynthesis. Answer Based on what you know about photosynthesis‚ provide possible reasons for what causes photosynthetic saturation (these cannot be determined from the graph). Answer Which color
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Objective: To find out the food substance in food sample X‚Y and Z. Biological Principle: Test for lipids using the grease spot test Test for glucose using Clinistix paper Test for reducing sugars using Benedict’s test Test for starch using the iodine test Test for proteins using Albustix paper Test for vitamin C using DCPIP solution A control using distilled water instead of the sample should be included. Independent: different types of food samples Dependent: different types of food
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Misael Acosta Photosynthesis Lab Report Ms. Rocha AP Biology 4th Period II. Intro/Background 1. In order for oxygen to be present photosynthesis must occur. Photosynthesis takes in light and CO2‚ and through a series of steps produces oxygen. Photosynthesis can be measured by either the disappearance of substrate or the accumulation of product. Examples include the production of O2 or the consumption of CO2. All the oxygen within the leaf disks will be removed before being placed
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com/marines/supporting/service-options/becoming-a-marine-officer Becoming a Marine Reservist. 2010 Lifeasamarine. October 8‚ 2010‚ from http://www.lifeasamarine.com/marines/supporting/service-options/becoming-a-reservist 3 Reasons to Become a Marine. 2007 US Military. October 8‚ 2010‚ from http://www.usmilitary.com/15505/3-reasons-to-become-a-marine/ Semper Fiedlis. 2010 U.S. MARINE CORPS. October 8‚ 2010‚ From http://www.marines.com/main/index/making_marines/culture/traditions/semper_fidelis
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IB Biology Potato Lab Table 1: Trial Number | Concentration of Sucrose Solution (M) ±0.2 ml | Initial Mass of Potato Core Slice(g) ±0.1 | Final Mass of Potato Core Slices (g) ±0.1 | 1 | 0.0 | 7.7 | 9.3 | 2 | | 6.0 | 8.1 | 3 | | 6.2 | 7.4 | 4 | | 10.2 | 13.2 | 5 | | 8.7 | 10.3 | 6 | | 4.9 | 6.0 | 7 | | 9.2 | 10.4 | 1 | 0.2 | 5.8 | 6.0 | 2 | | 11.6 | 12.1 | 3 | | 2.5 | 3.1 | 1 | 0.4 | 14.4 | 13.9 | 2 | | 2.6 | 2.8 | 3 | | 8 | 6.5 | 1 | 0.6 | 7.3 | 5.3 | 2
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Evolution Lab: Finches and Natural Selection Antonio Joseph O. dela Merced Principles of Biology Instructor: Matthew Scholten Evolution Lab: Introduction Evolution is a natural process in which animals adapt to their surroundings so that they may survive. There are many variables in an animal’s environment that influence its evolution. The purpose of this lab is to examine finches from the island of Darwin and the island of Wallace and how the island size‚ finches’ clutch size and the
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28/09/12 Grace Masters Woodlice Behavior Experiment Aim: To investigate the effect of light intensity on the behavior of woodlice (Porcellio scaber) in regards to their change in speed. Variables: Variable How can it be controlled? (IV) - Light intensity - The light intensity will be controlled by the knob on the lamp throughout the experiment. In addition‚ the light intensity will be controlled by closing the windows and doors in the classroom as well as turning
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Iodine is a test for starch while Benedict’s solution is a test for reducing sugars. When solution A is tested by benidicts test‚ the clear blue solution changed to a little reddish and brick red precipitate is formed.this result show that solution A is a reducing sugar. When carried out iodine test with solution A‚ the colourless solution remain unchanged . this tell us that starch is absent is solution A. When solution B is tested with Benedicts test‚ the clear blue solution remain unchanged‚ we
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Introduction: Living‚ microscopic‚ unicellular organisms can be identified as microorganisms. Fungi‚ Protista‚ Bacteria‚ and Archaeans are four kingdoms in the phylogenetic tree of life that consist of microorganisms. Amongst these microorganisms the prokaryotes were the first ones to arrive through evolution. The rest of the life forms as we see them evolved from these simple creatures‚ prokaryotes. The smaller prokaryotes were swallowed by bigger prokaryotes setting the stage for the origin of
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