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Chemical bond

intro to biochemistry and water worksheet

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1 Name: _____________________________ Date: ______________________________ 1. Because oxygen atoms tend to attract positively charged atoms, organic compounds that contain oxygen atoms tend to form ________________ bonds. 2. In the molecule that has the chemical formula C2H4, the carbon atoms are bonded together with a _________________________ bond. 3. What are the three types of bonds? _________________, ______________________, ___________________ 4. A substance that tends not to react with water, "Water hating" , is ________________________ 5. Breaking of _______________ bonds is the first thing that happens when water is heated, which means that it takes a

Campbell Biology Chapter 4 Study Guide

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Name Period Chapter 4: Carbon and the Molecular Diversity of Life Concept 4.1 Organic chemistry is the study of carbon compounds 1. Study this figure of Stanley Miller?s experiment to simulate conditions thought to have existed on the early Earth. Explain the elements of this experiment, using arrows to indicate what occurs in various parts of the apparatus. What was collected in the sample for chemical analysis? What was concluded from the results of this experiment? Concept 4.2 Carbon atoms can form diverse molecules by bonding to four other atoms Make an electron distribution diagram of carbon. It is essential that you know the answers to these questions: How many valence electrons does carbon have? How many bonds can carbon form?

Campbell Biology Chapter 2 Study Guide

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Name Period Chapter 2: The Chemical Context of Life This chapter covers the basics that you may have learned in your chemistry class. Whether your teacher goes over this chapter, or assigns it for you to review on your own, the questions that follow should help you focus on the most important points. Concept 2.1 Matter consists of chemical elements in pure form and in combinations called compounds Define and give an example of the following terms: matter: element: compound: What four elements make up 96% of all living matter? What is the difference between an essential element and a trace element? essential element: trace element: Concept 2.2 An element?s properties depend on the structure of its atoms

AP BIO

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Chapters 1, 2, &3. AP Biology Summarize Themes connect the concepts of biology Evolution is the core thing Accounts for the unity and diversity of life Charles Darwin and Theory of natural selection Taxonomy > classification of organisms Domains: Bacteria, Archaea, and Eukarya 6 Kingdoms: Plant, Animal, Fungi, Protista, Bacteria, Archaebacteria New properties emerge at each level in the biological hierarchy O>P>C>E>B Atom > Molecule > Organelle > Cell > Tissue > Organ > Organ System > O Organisms interact with their environments, exchanging matter and energy Energy > Producers > Consumers Structure and Function are correlated at all levels of biological organization Form Suits function Cells are an organism?s basic units of function Prokaryotes vs. Eukaryotes

Ch 2: Environmental systems

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Pauline Lee APES Chapter 2: Environmental Systems A Lake of Salt Water, Dust Storms, and Endangered Species Mono Lake- terminal lake water flows into it, but doesn?t flow out a. Picks up salt and other minerals- deposited in the lake b. Evaporation- buildup of salt concentration c. Mono brine shrimp/larvae of Mono Lake alkali fly i. Consume microscopic algae Los Angeles Department of Water and Power reduce amount of water diverted and allow the lake to refill to about 2/3rds of historical depth Earth is a Single Interconnected System Large system may contain many smaller systems within it Fisheries of the North Atlantic a. Physiologist- study how codfish survive in freezing waters i. Fish and internal organs system being studied

Campbell Biology 9th Edition Chapters1-5 Study Guide

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Chapter 1 Biology is the scientific study of life Properties of life: order, evolutionary adaptation, response to the environment, regulation, energy processing, growth and development, reproduction Ecosystem Dynamics Producers Plants and other organisms that convert sunlight into chemical energy Consumers Organisms that utilize (feed) on producers or other consumers 2 Basic Cell Types Eukaryotic Large High degree of organelle organization Membrane bound genetic material (nucleus) Prokaryotic Small Little organelle organization No membrane bound genetic material Genetic Material Both prokaryotic and eukaryotic cells maintain heritable material (DNA)a DNA is made of strands of nucleotides which form genes (sequences of your DNA) Make us who we are

Chapter 6- Chemistry in Biology

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Chapter 6-Chemistry in Biology COMPOSITION OF MATTER -Matter-everything in universe is composed of matter. -Matter is anything that occupies space or has mass -Mass-quantity of matter in an object -Weight-pull of gravity on us ELEMENTS -Pure substances that cannot be broken down chemically into simpler kinds of matter -More than 100 elements (92 naturally occuring) -90% of the mass of an organism is composed of 4 elements (oxygen, carbon, hydrogen, and nitrogen) -Each element has a unique chemical symbol -Consists of 1-2 letters -First letter is always captialized ATOMS -The simplest particle of an elemetnt that remains all the properties of that element. -Properties of atoms determine the structure and properties of the matter they compose.

AP bio summer hw ch 2 questions

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AP Biology Summer Assignment Unit 2: The Chemistry of Life Ch. 2- Write the key concepts from chapter 2 (include concept number also). These are listed for you in the front of each chapter. The key concepts from chapter 2 are concept 2.1 which states, ?Matter consists of chemical elements in pure form and in combinations called compounds.? Concept 2.2 which states, ?An element?s properties depend on the structure of its atom.? Concept 2.3 which states, ?The formation and function of molecules depend on chemical bonding between atoms.? And lastly concept 2.4 which states, ?Chemical reactions make and break chemical bonds. Ch. 3- Use illustrations to describe how the structure of a water molecule allows it to form hydrogen bonds with other water molecules.

Holt Biology Chapter 2 Section 1

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Unit 1 Chapter 2: Chemistry of Life Section 1: Nature of Matter Atom Smallest unit of matter that can?t be broken down by chemical means Protons, Neutrons, Electrons Electron cloud Region around nucleus that electrons can occupy at any time Stable atoms usually have no charge 1 electron for every 1 proton Elements Pure substance made of one kind of atom Differ in number of protons Ex. Carbon-12 (Carbon has 6 protons) 12-6=6 Carbon-12 has 6 neutrons Compound Substance made of joined atoms of 2 or more different elements Chemical formula identifies what is in compound and those elements? proportions Ex. NaCl 1 Sodium for every 1 Chlorine Covalent Bonds Two or more atoms share electrons to form a molecule Molecule Group of atoms held together by covalent bonds

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