What to know?
1. Neutrons are neutral, makes up nucleus, and weighs about 1 dalton
2. Protons are positive, make up nucleus, are equal to # of electrons
3. Electrons are negative; randomly surround the nucleus, and equal # of protons. The amount of these determines the chemical properties and reactivity of an atom.
Hydrogen: One electron, Carbon: 6 electrons, Nitrogen: 7 electrons, Oxygen: 8 electrons.
4. Salts in the body, like Calcium, Potassium, and Sodium Chloride and Iron, are all ionicly bonded. Know the appearance of Sodium chloride and else wise be able to identify
Anions: Chloride; Gains electrons and becomes negative. Cations- Sodium; loses electrons and becomes positive.
5. Bonds:
Nucleic Acids are held together by H-bonds.
Hydrogen bonds are in proteins on left side. Aid in tertiary structure by holding polar side chains together, while Ionic bonds hold positive and negative charges, helping stabilize the tertiary structure.
Adenine and thymine have 2 hydrogen bonds.
Guanine and cytosine have three.
Hydrogen bonds are part of the Secondary structure of Proteins and helps with local folding.
Peptide bonds form due to dehydration synthesis between amino acids, linking them together.
Ester linkage forms between the glycerol and three fatty acids!
Phosphodiester bonds forms between the phosphates and the nitrogen base in a sugar.
Hydrolsis breaks polymers by adding water to them, thus causing h+ to go to one, and OH- to go to the other. It requires enzymes and water, and produces energy.
Dehydration Synthesis requires the –HO of one monomer and the –HO of another, along with an enzyme and energy to form a polymer.
A population consists of organisms of the same species in the same
John Jay High School AP Biology Summer 2013 Dear Future AP Biology Students: Welcome to AP Biology! It is hard to imagine that the school year is coming to a close and it is time to think about the 2013-14 school year. We are looking forward to another great year of AP Biology with another fantastic group of students. As you may know, there are some changes to the AP Biology program for 2013-2014, and we are ready! AP Biology is a challenging but very rewarding course and we will have…
Reactants of a chemical reaction need to gain energy before they can undergo the reaction. This required energy is called the activation energy of the reaction and it is needed to break bonds within the reactants. At a later stage in the reaction energy will be released as new bonds form. The majority of biological reactions are exothermic. In exothermic reactions the energy released by the new bonds formed is greater than the activation energy. In other words, the reaction releases energy. Enzymes…
Part I. Introduction Chapter 1. What is Human Ecology? Chapter 2. Environment, Technology, and Culture What Is Human Ecology? 1 Chapter 1. WHAT IS HUMAN ECOLOGY? Another Unique Species (Title of Robert Foley’s 1987 book on evolutionary human ecology) I. Introduction What is human ecology? Human ecology is an approach to the study of human behavior marked by two committments. First, human ecologists think that humans should be studied living systems operating in complex environments…
Screen reader users, click here to turn off Google Instant. About 23,000 results (0.63 seconds) Search Results [PDF] AP® Biology investigAtive lABs: - The College Board www.collegeboard.com/.../cb-biology-lab-manual-1-24-1... College Board source or overlooked a publisher, please contact us. ... (Visit the College Board on the Web: www.collegeboard.org.) 1 2 3 4 5 ... made significant contributions to the new lab manual. ..... biological concepts while developing reasoning…
Apoorva Sooranahalli AP Biology Period 6 Grains of Hope Article Summary The research advances made over the past twenty years have moved genetic engineering and biotechnology onto the American and world landscapes. The public has long accepted new technology as being beneficial without much challenge. There is a growing understanding that new technologies have costs, risks, and benefits associated that are not necessarily distributed evenly across the population. This article is about the golden…
When a person stands the heart needs to pump blood against gravity, to reach areas of importance like the brain, thus veins work hard to pump it back toy the heart. As a person reclines their blood pressure decreases, because the person is more relaxed. Also it slows down the persons breathing and heart rate. There is also an increase in oxygen in order to support the body. The difference between when a person is standing and person who is reclined is that the heart works harder while the person…
Name_______________________Period___________ Chapter 6: A Tour of the Cell Concept 6.1 Biologists use microscopes and the tools of biochemistry to study cells 1. The study of cells has been limited by their small size, and so they were not seen and described until 1665, when Robert Hooke first looked at dead cells from an oak tree. His contemporary, Anton van Leeuwenhoek, crafted lenses and with the improvements in optical aids, a new world was opened. Magnification and resolving power limit…
days to study Week 1, Day 1 You can use either Cliffs AP Biology 3rd Edition or Barron’s AP Biology. I personally used only Cliffs AP Biology 3rd edition. Using both would be best, but it is not necessary. I don’t recommend the 4th edition of AP Cliffs Biology, it was updated to eliminate much of the information in accordance with the new AP biology exam. ☐ Read AP Cliffs Ch. 1 “Chemistry” takes notes and memorize it ☐ Read AP Barron’s Biology Ch. 3 “Biochemistry” (notes are online on the dat bootcamp…
each year of high school Science – 3 Credits: 1 Credit in Biology 1 Credit in Chemistry, Physics, or Integrated Chemistry/Physics (ICP) 1 Additional credit from above or any Core 40 science i.e. E/S Science, Chemistry 2, or Biology 2 Science – 3 Credits: 1 Credit in Biology 1 Credit in Chemistry, Physics, or Integrated Chemistry/Physics (ICP) 1 Additional credit from above or any Core 40 science i.e. E/S Science, Chemistry 2, or Biology 2 Social Studies – 3 Credits: 1 Credit in US History 1 Credit…
This is a college level course taught to those students meeting specific requirements. In order to help students to complete the tremendous amount of material and in order to help you do well on the AP exam in May, please complete this summer assignment. Please read the following chapters in Biology, 9 th Ed. by Neil A. Campbell & Jane B. Reece: Chapter 1: The Chemistry of Life Chapter 2: The Chemical Context of Life Chapter 3: Water and Life Chapter 4: Carbon and the Molecular Diversity of…