BI 101 Spring 2013 EXAM II This exam covers chapters 4-6. This is an open note & open book exam‚ but all questions should be answered in your own words. Please include the question immediately before each answer‚ and the test is due at the beginning of the lecture following the lecture that completes the discussion of chapter 6. Further notes: On each compare and contrast question‚ 50% of the score will focus how well you ‘compare’ the items (i.e. how the items are similar) and 50% of the
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AP Bio Lab Report Osmosis and Diffusion Introduction When a substance is released into an area‚ the random movement of its molecules results in a multitude of collisions. These collisions‚ in turn‚ lead to a dispersion of the molecules. The overall movement of the molecules will be from an area of high concentration‚ where there will be more collisions‚ to areas of low concentration‚ where the number of collisions will be much less. This process of dispersion will continue until there is no
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* Biology Investigation 3.1 Porcellio Scaber (Slater‚ Woodlouse) Task 1 The crustacean Porcellio Scaber‚ or more commonly known as the woodlouse‚ is a species usually found in leaf litter or in fallen trees and bark. It feeds on detritus like many other isopods of its type‚ and is generally predated on by small mammals‚ lizards and some insects. The woodlouse habitat reflects its need to avoid warm and dry areas. The woodlouse is prone to desiccation (drying out) due to its body’s large surface
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AP ESSAY ANSWERS: 16-20 1. Information transfer is fundamental to all living organisms. For TWO of the following examples‚ explain in detail‚ how the transfer of information is accomplished. A) The genetic material in one eukaryotic cell is copied and distributed to two identical daughter cells. B) A gene in a eukaryotic cell is transcribed and translated to produce a protein. C) The genetic material from one bacterial cell enters another via transformation‚ transduction or conjugation
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Biology Enzyme Catalase Investigation Aim: The aim of this investigation is to study and observe whether or not the concentration of hydrogen peroxide (varying from 10 – 30 millilitres) affects the rate of reaction. Hypothesis: With the increase of the concentration of Hydrogen Peroxide 3% substrate‚ I prediction that the rate of pressure increase will begin to amplify. The pressure is bound to increase because the catalase quickly reacts with the hydrogen peroxide; this is why the more substrate
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Natalia Wierzchon A.P. Biology Lab: 1. Osmosis 09/10/2010 I. Introduction a. Purpose: The purpose of this lab was to observe the diffusion process of water‚ osmosis‚ as well as create an understanding of water potential‚ the basis of osmosis. The experiment proved how water molecules in a solution are able to move from an area of low solute concentration‚ high water concentration‚ to an area of high solute concentration‚ low water concentration‚ diffusing “down” the water gradient.
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Chapter 7 Cell Structure and Function Section Review 7-1 1. living things 2. structure; function 3. existing cells 4. nucleus; prokaryotes 5. organelles 6. prokaryotic cell 7. eukaryotic cell 8. The giant amoeba is 5000 times larger than the smallest bacterium. 9. Prokaryotic and eukaryotic cells carry out the functions required for living‚ and both contain cytoplasm as well as cell membranes. Eukaryotic cells contain organelles and have a nucleus‚ whereas prokaryotic cells do not. 10. Eukaryotic;
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Advanced Placement Biology ® AP Biology Lab 1 281 EDVO-Kit # Storage: Principles & Practice of Diffusion & Osmosis Store entire experiment at room temperature. EXPERIMENT OBJECTIVE The objective of this experiment is to develop an understanding of the molecular basis of diffusion and osmosis and its physiological importance. Students will analyze how solute size and concentration affect diffusion across semi-permeable membranes and how these processes affect water potential. Students
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w w w e tr .X m eP e ap .c rs om International General Certificate of Secondary Education CAMBRIDGE INTERNATIONAL EXAMINATIONS BIOLOGY PAPER 1 Multiple Choice 0610/1 OCTOBER/NOVEMBER SESSION 2002 45 minutes Additional materials: Multiple Choice answer sheet Soft clean eraser Soft pencil (type B or HB is recommended) TIME 45 minutes INSTRUCTIONS TO CANDIDATES Do not open this booklet until you are told to do so. Write your name‚ Centre number and candidate number on the answer
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Biology has been the most interesting and appealing subject I have taken. Taking the course as a freshman‚ and the AP course as a junior‚ has really influenced my choice of a potential major. The course taught me how to be more studious and efficient with the information I retain. It is a puzzle‚ in which you piece together process by process‚ step by step. AP Biology also enhanced my collaboration skills. The course is very rigorous and challenging‚ and I struggled often trying to do it all by myself
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