PAPER 3 Answer all question. Question 1 Transpiration is the evaporation of water vapour from the leaves surface. Air movement is one of the factor that affects the evaporation of water vapour. A group of student carried out an experiment to study the effect of air movement on rate of transpiration of plants. Diagram 1 shows the apparatus used by the students. The experiment was conducted under still air and strong fan speed. Diagram 1 The time taken for the air bubble in the capillary tube to
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Adriana Rempson Mrs. Steeger AP Biology-7 10 October 2012 Transpiration in Plants Abstract: Our group wanted to see how transpiration would happen in plants when they were in different environments. The different environments we used were humidity and room environments. We measured transpiration using the whole plant method. Our results showed that the plants in a humid environment had greater transpiration rates than the plants in the room environment. Introduction: Pants absorb and
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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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39) Name the specific type of plant tissue or cell that performs the following functions: a) waterproofing the surface layer Endodermos b) rapidly dividing into new cells Mitosis c) transporting sugars throughout the plant Phloem 40)Maple syrup is produces from the sap moving in the xylem of maple trees in the early spring. How would taking too much sap in the spring harm the maple tree? That sap is an energy store to give it a strong start in spring. If you take too much
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scale 1-2 Biological systems are much more than sums of their parts 1-3 Biologists explore life across the diversity of species 1-4 Evolution accounts for life’s unity and diversity 1-5 Biologists uses various forms of inquiry to explore life 1-6 A set themes connects the concepts of biology Overview: Biology- the study of life (Page 2) Concept 1-1: • The study extends from the microscopic scale of the molecules and cells that makes up organisms to the global scale to the entire living
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AP BIOLOGY Lab 5 Cellular Respiration Objective: To calculate the rate of CR from the data. To then relate gas production to respiration rate. Then test the rate of CR in germinating versus non-germinating seeds in a controlled experiment and then test the effect of temperature on the rate of CR in the germinating versus non-germinated seeds in a controlled experiment. Analysis: 1. The CR is higher in the germinating peas in the cold water rather than in the beads or non-germinating peas
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AP Biology Summer Summaries There are many differences between proximate and evolutionary causes and explanations on why we are such easy targets for diseases. The proximate explanations are described by its anatomy‚ physiology‚ and biochemistry. Evolutionary explanations go into detail on what would happen if we didn’t have the genes that cause us to get sick. Proximate causes look for what genes it is made up of and how it works. Evolutionary causes are why natural selection hasn’t eliminated
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Rank the following terms from largest to smallest: ecosystem‚ population‚ biosphere‚ community. biosphere (largest) ecosystem community population (smallest) ecosystem (largest) biosphere community population (smallest) biosphere (largest) ecosystem population community (smallest) ecosystem (largest) community biosphere population (smallest) Which of the following includes the other three: ecosystem‚ population‚ biosphere‚ community. The ecosystem contains all the communities
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Mitosis Hands-On Labs‚ Inc. Version 42-0091-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information
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AP: CHAPTER 43: IMMUNE SYSTEM 1. List the two lines of nonspecific defense mechanisms with examples of each. • External defense‚ which includes the skin and mucous membranes in the body. • Internal defense which includes phagocytic cells and antimicrobial proteins. 2. What is meant by specific defense? Defense mechanisms are said to be specific because depending on which one they focus on one specific part of the body or a specific type of pathogen. 3. Give examples of “barrier defense
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