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 byMichelle Brewer
Modified over 3 years ago
Pre-AP Biology Water Properties (2.2) Part 1
Earth 2/3rds covered by water
Organisms are mostly water
Polar covalent bonding of water molecule See how each end(pole) has an electrical charge?
Hydrogen bonding between water molecules See the central molecule bonding to the 4 outside molecules?
Water needs to get to the leaves for Photosynthesis. Cohesion of water helps.
Adhesion See the water molecules binding to the Na + or Cl - ? Which atoms of water are are attracted to the Na + ? How about to the Cl - ?
Earth and Temperature
States of Water on Earth Solid, Liquid, and Gas
All four Hydrogen bonds have to break at the same time to allow water to evaporate in a gas. That requires a lot of Energy.
Heat Total amount of kinetic energy in a substance There is so much energy moving through the metal, it glows.
Temperature Intensity of all the heat in a substance Which is showing the most intensity? Least?
Ice versus Water It is about molecule movement.
Expansion of water as it freezes Look at the distance between water molecules. Which one looks more dense as a whole?
Life below the water
Pre-AP Biology Water Properties (2.2) Part 2
Water dissolving pulling apart the salt See the water forming shells around the Na + and Cl - ? Which molecule is the solvent? The solute?
Hydrophobic Water fearing substances See how they do not interact/mix?
Salt is hydrophilic in water.
Dissociation of Water
pH scale The H in pH is for Hydrogen Measuring the concentration of Hydrogen ions (H + ) within a substance
Buffering by Bicarbonate in blood Find Bicarbonate in the red blood cells
Acid Rain Source Burning fossil fuels such as oil or gas
The effect of acid rain on plants See the dead trees?
Acid Rain and Concrete
Slide show: Modified from Kim Foglia
Pre-AP Biology Water Properties (2.2) Part 1. Earth 2/3rds covered by water.
Chapter 3: WATER AND THE FITNESS OF THE ENVIRONMENT.
AP Biology Chapter 3. Water— The Elixir of Life!
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings Water and the Fitness of the Environment Chapter 3.
Water and the Fitness of the Environment Chapter 3 Biology – Campbell Reece.
AP Biology Water— The Elixir of Life! AP Biology Why are we studying water? All of the processes of life occur in water inside & outside the.
WATER AND THE FITNESS OF THE ENVIRONMENT WATER. Chemistry of water Water is a POLAR molecule. This means it has covalent bonds that do not share electrons.
50-95% of any functioning living system. 98% of water on earth is in liquid form.
Water. Water is the biological medium on Earth All living organisms require water more than any other substance Most cells are surrounded by water,
+ Basic Chemistry Honors Bio Ms. Napolitano. + Water is everywhere! The Earth is ~71% water The human body is made up of about % water Water is.
AP Biology Why are we studying water? All life occurs in water All life occurs in water –inside & outside the cell.
The Science of Water in the Living World. Water is a polar molecule. Polar Molecule: a molecule that has a slightly positive side and a slightly negative.
WATER Chapter 3. P OLARITY OF W ATER The oxygen (O) atom is slightly negative ( -) and the hydrogen (H) atoms are each slightly positive ( +) POLAR COVALENT.
Water The Single most abundant compound in most living things.
? Water =Life Water =Life Why water is so FREAKIN cool: 1. Its Polarity gives potential. 1. Its Polarity gives potential. 2. Cohesion/Adhesion/Surface.
1 Water. Life on earth evolved in water,and all life still depends on water. At least 80% of the mass of living organisms is water and almost all chemical.
Biochemistry Chemical reactions in living things..
Water ä Water is necessary for life ä Life evolved in water.
Bonding and Water Properties General Biology. A chemical compound consists of atoms of two or more elements Compounds are held together by chemical.
CHAPTER 4: The Chemical Basis of Life 4-1: Water.
The properties of water Life depends on them!. Water is polar Covalent bond.
Structure of water Oxygen and hydrogen of water is covalently bonded to create a stable molecule. Water is polar because the oxygen region is slightly.
10T2K © Water and pH. Thing 1: Water is polar Water is a polar molecule. That is, it has a negative end (at the oxygen) and a positive end (at each hydrogen).
Figure 3.2 Hydrogen bonds between water molecules Evolution Living cells are 70-95% H2O H2O covers 3/4 of the planet Solid Liquid Gas Polarity and H-bonds.
Water. Water 2 Hydrogen atoms + 1 Oxygen atom covalently bonded (polar) Makes up 70-95% of living things, covers 75% of Earth DRAW and LABEL this.
Water’s Life support Properties Text pg
Organisms must exchange matter with the environment to grow, reproduce and maintain organization. ◦ Molecules and atoms from the environment are necessary.
Chapter 3 Water & The Fitness of the Environment.
AP Biology Chapter 3. Water— The Elixir of Life!.
CHAPTER 2 Water and Life
Chapter 3 Water and the Fitness of the Environment Mr. Karns AP biology notes.
Water is a Polar Molecule! What is the molecular formula of water? Draw water and label it. Place a negative sign by oxygen and a positive sign by the.
Lecture #12 Water and Its Properties Honors Biology Ms. Gaynor.
The Biological Medium on Earth. To get the most out of these notes, you MUST read along with pages in the textbook Not everything in these pages.
BIOLOGY CONCEPTS & CONNECTIONS Fourth Edition Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Neil A. Campbell Jane B. Reece Lawrence.
Properties of Water Biochemistry. Why is Water Important? Habitat Transport medium Some metabolic reactions Cell shape homeostasis.
Chapter 3 Water. 1. Overview H2OH2O Exists as a solid, liquid, or vapor required by living things cells surrounded by water cells 70-90% water Earth.
Water- A Necessity to Life Chapter 3 – Campbell Reece Tamara Lookabaugh Moore High School AP Biology Lecture.
Water and the Fitness of the Environment Chapter 3.
The Properties of Water The chemical formula for water is H 2 O. This mean that each molecule of water is made from two Atoms of hydrogen and one atom.
2.3 Chemistry of Water. Properties of Water Water has a high heat capacity.
W-H Based on work by K. Foglia Chapter 3. Water— The Elixir of Life!
Chapter 2-3 Water and Solutions. Objectives Describe the structure of a water molecule. Explain how water’s polar nature affects its ability to dissolve.
Water, Acid & Base, and pH Nestor T. Hilvano, M.D., M.P.H. (Images Copyright Discover Biology, 5 th ed., Singh-Cundy and Cain, Textbook, 2012.)
MCC BP Chapter 3. Water— The Elixir of Life!. MCC BP Based on work by K. Foglia Why are we studying water? All life occurs in water.
Water and its Properties CP Biology: Chapter 2. The Water Molecule needed by all living things – parts of cells, fluid around cells (humans 65% water)
Biology 107 Water September 2, Water Student Objectives:As a result of this lecture and the assigned reading, you should understand the following:
© 2017 SlidePlayer.com Inc. All rights reserved.