Lt 3 i can define ph and explain why maintaining a. The course is designed to cover two semesters different classes of college biology in one year. Ap biology 2 ap biology adhesion h2o molecules form h bonds with other substances capillary action meniscus water climbs up fiber ex. We do not want this pigment mixture to come in direct contact with the solvent mixture. Adhesion of water to the walls of a vessel will cause an upward force on the liquid at the edges and result in a meniscus which turns upward. Capillary action is sometimes called capillary motion, capillarity, or wicking. A stalk of celery is placed in a solution of blue colored dye.
A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Assesses student understanding of the chemistry and importance of both capillary action and dissolved nutrients for plants. Downloadap biology textbook campbell 7th edition pdf. This class is highly intensive, with a lot of material that needs to be covered. This lesson explains what capillary action is, describes all the forces necessary for it to happen, and goes. Ap biology elixir of life special properties of water 1. Elements almost everything around us can be broken down into simpler substances. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The solvent moves up the paper by capillary action, which occurs as a result of the attraction of solvent molecules to the paper and the attraction of solvent molecules to one another. Using a capillary tube, place about 25 drops of the extract in the center of the silica gel plate about 2 cm from the bottom. Ap biology study guide unit i chemistrybiochemistry i. Below freezing water is a solid ice or snowflakes, between freezing and boiling water is a liquid, and above its boiling point water is a gas. These substances can be further broken down into other simpler substances.
Brian remembers a love for science going back to his own ap biology high school class. Get the full kaplan ap biology book from amazon here. Ap biology chapter 42 circulatory and respiration heart. Capillary action occurs because water is sticky, thanks to the forces of cohesion water molecules like to stay close together and adhesion water molecules are attracted and stick to other substances. The flow of liquids through porous media, such as the flow of water through soil. Definitive test for creutzfeldtjacob disease, lyme disease, hepatitis b and herpes. Please note that the content of this book primarily consists of articles available from wikipedia or other free sources online. There are words scientists use to describe water continue reading water properties notes. Pdf biology virginia department of education correct answer reporting category reporting category description 1mc b 003 life at the systems and organisms level 2 tei phases must be placed in the correct order from left to right as shown. Ap biology cohesion, adhesion, surface tension, and. The effect can be seen in the drawing up of liquids between the hairs of a paintbrush, in a thin tube, in porous materials such as paper and plaster, in some nonporous. The agent is available under various brand names including duragesic, sublimaze, actiq, onsolis, instanyl and fentora. Water properties states of water adhesion and cohesion surface tension capillary action the states of water water has three states. Ap environmental science summer packet, 20182019 welcome to apes.
Heat of vaporization is the amount of energy required to convert liquid into gas. Biochemistry piffle sheet houston independent school. Osmosis, capillary action, cohesiontension theory, and transpiration 180. Capillary action water can be drawn up a thin tube. There is a point where substances can no longer be broken. Capillary action, capillarity, capillary motion, or wicking refers to two phenomena. Cchs ap biology goldberg adhesion h 2 o molecules form h bonds with other substances capillary action meniscus water climbs up fiber ex. Ap biology exam connections biochemistry is tested every year on the multiple choice and also make appearances on the free response section of the exam. Water moving up from the roots of plants to the leaves as a result of capillary action is because of adhesion. Before embarking to medical school, brian took a youngadultprofessional detour and found himself at fusion learning centerfusion. At the university of san diego, brian majored in biology and minored in chemistry, with a premed emphasis.
Ap biology syllabus course overview students will demonstrate the ability to use the scientific method and major biological concepts to explain the uniqueness and interdependence of living organisms, their interactions with the environment, and the continuation of life on earth. Ap biology grid in questions require students to use mathematics to solve biological problems. The method of determination is known as capillary tube method. Created by lee ferguson, allen high school, allen isd. I can explain the significance of water to organisms. After one hour, the leaves have blue fluid in their veins. The content of the advanced placement biology examination. Start studying ap biology cohesion, adhesion, surface tension, and capillary action.
Ap biology summer assignment welcome to ap biology. We will revisit a great deal of material that you already learned in your other classesespecially biology, chemistry, algebra, and even middle school social studies. Plant pigment chromatography ap biology lab manual for students, college board. This movement does not require the force of gravity to occur. Organic compounds are molecules that contain carbon. The action of capillary forces in a tube lifts a wetting fluid, a behavior that seemed. This property helps humans maintain homeostasis of body temperature by evaporation. Please be aware that part of taking this class is commitment to being present and on time, on task and hard working. Most ap biology students earned enough pts to get a 2,3,4, but very few scored well enough on the grid ins and free response to score a 5.
Pillbugs are used to serve as an introduction to inquiry designed. Ap biology chapter 42 circulatory and respiration free download as powerpoint presentation. Capillary action is defined as the spontaneous flow of a liquid into a narrow tube or porous material. Western blotting technique is the confirmatory test for hiv. Ap biology 1 jennifer talley textbooks biology ap edition, 8th edition. This action causes blood to be drawn into a smalldiameter tube when the tube touches a. Unique properties of water enable it to carry out functions that no other substances can. Capillary action is the process that plants use to pull water up from the ground. Properties of water lab 2012 modified from a lab by david knuffke, deer park hs page 1 of 8 lab. One example is atp synthase, the enzyme that stores cellular energy in atp by combining adp and phosphate. One important phenomenon related to the relative strength of cohesive and adhesive forces is capillary action the tendency of a fluid to be raised or suppressed in a narrow tube, or capillary tube. Capillary action also occurs in nonliving objects, such as drinking straws and graduated cylinders. All living matter is made up of nitrogen, carbon, hydrogen, oxygen, phosphorus, an. Capillary action sometimes capillarity, capillary motion, capillary effect, or wicking is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity.
395 806 1642 1063 935 291 119 1452 1549 1184 189 1072 1297 507 1627 464 1425 1051 207 865 152 474 947 1267 631 1080 805 268 1043 906 58 631 925 920 1210 771 427 221 389 845 1401 508