Slide 1
... Even though elements are built by using just three building blocks (electrons, neutrons, and protons), a variety of elements with vastly different properties are created: Choose two elements that differ by only one proton, but appear very different. ...
... Even though elements are built by using just three building blocks (electrons, neutrons, and protons), a variety of elements with vastly different properties are created: Choose two elements that differ by only one proton, but appear very different. ...
NEED TO KNOW 2014 - ANATOMY AND PHYSIOLOGY
... Section 2-4 Reactants are oxygen and cellulose. ...
... Section 2-4 Reactants are oxygen and cellulose. ...
Hole Chapter 2 - Chemical Basis of Life
... • contain C and H • usually larger than inorganic molecules • dissolve in water and organic liquids • carbohydrates, proteins, lipids, and nucleic acids Inorganic molecules • generally do not contain C (except HCO3-, CO2) • usually smaller than organic molecules • usually dissolve in water or react ...
... • contain C and H • usually larger than inorganic molecules • dissolve in water and organic liquids • carbohydrates, proteins, lipids, and nucleic acids Inorganic molecules • generally do not contain C (except HCO3-, CO2) • usually smaller than organic molecules • usually dissolve in water or react ...
E L E M E N T S
... both reactions occur at the same rate Many biological reactions are irreversible under normal body conditions ...
... both reactions occur at the same rate Many biological reactions are irreversible under normal body conditions ...
Chemistry - Solutions
... • Solubility: the amount of a substance that will dissolve in a given amount of solvent to form a saturated solution at ...
... • Solubility: the amount of a substance that will dissolve in a given amount of solvent to form a saturated solution at ...
(H) +
... of Cells Inorganic molecules • Generally do not contain C and H • Usually smaller than organic molecules • Usually dissociate in water, forming ions • Water, oxygen, carbon dioxide, and inorganic salts ...
... of Cells Inorganic molecules • Generally do not contain C and H • Usually smaller than organic molecules • Usually dissociate in water, forming ions • Water, oxygen, carbon dioxide, and inorganic salts ...
Biochemistry of Cells
... about 2 meters of DNA A typical cow produces over 200 pounds of methane gas each year ...
... about 2 meters of DNA A typical cow produces over 200 pounds of methane gas each year ...
Chapter 12 History of Life on Earth
... • 2.5 billion years ago, photosynthesis by cyanobacteria began adding oxygen to Earth’s atmosphere. O2 reacted with the sun’s radiation to form O3 or ozone. • The upper atmosphere blocks the Ultra Violet radiation of the sun. • After millions of years Ozone has made Earth a ...
... • 2.5 billion years ago, photosynthesis by cyanobacteria began adding oxygen to Earth’s atmosphere. O2 reacted with the sun’s radiation to form O3 or ozone. • The upper atmosphere blocks the Ultra Violet radiation of the sun. • After millions of years Ozone has made Earth a ...
The Chemistry of Life
... Carbon (w/ 4 valence electrons) forms many compounds with other elements. Living cells are composed of HUGE molecules (macromolecules) made of thousands of atoms. The four biomolecules found in living things are: Lipids; Proteins; Carbohydrates; Nucleic acids Although more than 25 types of e ...
... Carbon (w/ 4 valence electrons) forms many compounds with other elements. Living cells are composed of HUGE molecules (macromolecules) made of thousands of atoms. The four biomolecules found in living things are: Lipids; Proteins; Carbohydrates; Nucleic acids Although more than 25 types of e ...
2016-17 Biology Syllabus - Montgomery County Schools
... chemical reactions in energy transfer in living systems. Know living systems require a continuous input of energy to maintain their chemical and physical organization since the universal tendency is toward more disorganized states. The energy for life primarily derives from the Sun. Plants capture e ...
... chemical reactions in energy transfer in living systems. Know living systems require a continuous input of energy to maintain their chemical and physical organization since the universal tendency is toward more disorganized states. The energy for life primarily derives from the Sun. Plants capture e ...
Document
... Temperature – faster at higher temperatures Particle size – the smaller the particle the faster the chemical reaction Concentration – higher concentrations produce faster reactions Catalysts – increase the rate of a reaction without being chemically changed Enzymes – biological catalysts, usually pr ...
... Temperature – faster at higher temperatures Particle size – the smaller the particle the faster the chemical reaction Concentration – higher concentrations produce faster reactions Catalysts – increase the rate of a reaction without being chemically changed Enzymes – biological catalysts, usually pr ...
Lecture (Powerpoint)
... Observations can be of the world as it is or of carefully set up situations to see what happens (experiments) In some sciences experimentation isn't possible (astronomy) or is limited (human behavior), and only observations are feasible Making careful observations isn't as easy as it may seem. ...
... Observations can be of the world as it is or of carefully set up situations to see what happens (experiments) In some sciences experimentation isn't possible (astronomy) or is limited (human behavior), and only observations are feasible Making careful observations isn't as easy as it may seem. ...
File - King`s General Science
... Enzymes are special proteins They are present in the cytoplasm of all cells They help to speed up the chemical reactions in the cell There are hundreds of different enzymes but each enzyme speeds up only one kind of reaction For example, glucose and fructose might join up slowly to form sucrose gluc ...
... Enzymes are special proteins They are present in the cytoplasm of all cells They help to speed up the chemical reactions in the cell There are hundreds of different enzymes but each enzyme speeds up only one kind of reaction For example, glucose and fructose might join up slowly to form sucrose gluc ...
Environmental Science
... • Ionic bond: electrons transfer completely from one atom to another, forming oppositely charged ions ...
... • Ionic bond: electrons transfer completely from one atom to another, forming oppositely charged ions ...
Environmental Science
... • Ionic bond: electrons transfer completely from one atom to another, forming oppositely charged ions ...
... • Ionic bond: electrons transfer completely from one atom to another, forming oppositely charged ions ...
2. Chemistry of Living Things Outline
... Each chemical reaction that occurs in a living thing is controlled by an _________. Enzymes are large, complex _____________ molecules that control the _______ of chemical reactions. Enzymes are the ____________ catalysts in cellular chemical reactions. In chemistry, a ____________ is something that ...
... Each chemical reaction that occurs in a living thing is controlled by an _________. Enzymes are large, complex _____________ molecules that control the _______ of chemical reactions. Enzymes are the ____________ catalysts in cellular chemical reactions. In chemistry, a ____________ is something that ...
Chemistry of Living Things Outline
... In chemistry, a ____________ is something that _________ up or ________ down a chemical reaction. Catalysts are neither permanently ____________ nor __________ by the reaction they catalyze. In organisms, _____________ allow the chemical reactions of ______________ to take place more efficien ...
... In chemistry, a ____________ is something that _________ up or ________ down a chemical reaction. Catalysts are neither permanently ____________ nor __________ by the reaction they catalyze. In organisms, _____________ allow the chemical reactions of ______________ to take place more efficien ...
Chapter 2 Outline
... electrons in chemical reactions, chemical bonds (including ionic, covalent, and hydrogen bonds), forms of energy and chemical reactions, energy transfer in chemical reactions, and the detailed mechanisms of chemical reactions (including synthesis, decomposition, exchange, and reversible reactions). ...
... electrons in chemical reactions, chemical bonds (including ionic, covalent, and hydrogen bonds), forms of energy and chemical reactions, energy transfer in chemical reactions, and the detailed mechanisms of chemical reactions (including synthesis, decomposition, exchange, and reversible reactions). ...
History of Life - CHS
... evidence supports Primordial Soup Theory • Amino acids form proteins when heated w/o O2 • ATP & nucleic acids form similarly • Sidney Fox & protocells ...
... evidence supports Primordial Soup Theory • Amino acids form proteins when heated w/o O2 • ATP & nucleic acids form similarly • Sidney Fox & protocells ...
Anatomy & Physiology Ch. 2 Chemistry Comes Alive
... **Carbon, hydrogen, oxygen, and nitrogen make ...
... **Carbon, hydrogen, oxygen, and nitrogen make ...
Unit 2: Biochem Notes
... - A solution with a pH __________ 7, has more OH- ions than H+ ions, and is basic. - A solution with a pH _________ 7, has more H+ ions than OH- ions, and is acidic. b. buffer – Weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH. Buffers make acidic ...
... - A solution with a pH __________ 7, has more OH- ions than H+ ions, and is basic. - A solution with a pH _________ 7, has more H+ ions than OH- ions, and is acidic. b. buffer – Weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH. Buffers make acidic ...
Simple Sugars
... • They are made from many simple sugars put together Examples – Starch: storage in plants – Glycogen: storage in animals – Cellulose: structure in plants •Different complex sugars have different number and arrangement of simple sugars therefore they have different shapes & functions ...
... • They are made from many simple sugars put together Examples – Starch: storage in plants – Glycogen: storage in animals – Cellulose: structure in plants •Different complex sugars have different number and arrangement of simple sugars therefore they have different shapes & functions ...
1 | Page Glossary: Atom: Molecule: Compound: Atomic number
... A substance that minimizes change in the acidity of a solution when an acid or base is added to the solution fluid within cells o Interstitial fluid: fluid surrounding most tissues o Intra-‐vascula ...
... A substance that minimizes change in the acidity of a solution when an acid or base is added to the solution fluid within cells o Interstitial fluid: fluid surrounding most tissues o Intra-‐vascula ...
Chemistry review ppt edited
... All reactions need energy to occur. Activation Energy – refers to the energy needed to get the reaction started For example, you must apply force when striking a match to get the fire to start. Rollercoaster example ...
... All reactions need energy to occur. Activation Energy – refers to the energy needed to get the reaction started For example, you must apply force when striking a match to get the fire to start. Rollercoaster example ...
CELLS and MOLECULES A.1 - Structure and function of the organic
... Explain structural homologies and molecular homologies. Homologous structures – forearm suggest common ancestor ...
... Explain structural homologies and molecular homologies. Homologous structures – forearm suggest common ancestor ...
Abiogenesis
Abiogenesis (Brit.: /ˌeɪbaɪ.ɵˈdʒɛnɨsɪs/ AY-by-oh-JEN-ə-siss U.S. English pronunciation: /ˌeɪˌbaɪoʊˈdʒɛnᵻsɪs/), or biopoiesis, is the natural process of life arising from non-living matter, such as simple organic compounds. It is thought to have occurred on Earth between 3.8 and 4 billion years ago, and is studied through a combination of laboratory experiments and extrapolation from the genetic information of modern organisms in order to make reasonable conjectures about what pre-life chemical reactions may have given rise to a living system.The study of abiogenesis involves three main types of considerations: the geophysical, the chemical, and the biological, with more recent approaches attempting a synthesis of all three. Many approaches investigate how self-replicating molecules, or their components, came into existence. It is generally accepted that current life on Earth descended from an RNA world, although RNA-based life may not have been the first life to have existed. The Miller–Urey experiment and similar experiments demonstrated that most amino acids, basic chemicals of life, can be synthesized from inorganic compounds in conditions intended to be similar to early Earth. Several mechanisms have been investigated, including lightning and radiation. Other approaches (""metabolism first"" hypotheses) focus on understanding how catalysis in chemical systems in the early Earth might have provided the precursor molecules necessary for self-replication. Complex organic molecules have been found in the Solar System and in interstellar space, and these molecules may have provided starting material for the development of life on Earth.According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the Universe. It is speculated that the biochemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the age of the universe was only 10–17 million years.Nonetheless, Earth is the only place in the Universe known to harbor life. The age of the Earth is about 4.54 billion years. The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era after a geological crust started to solidify following the earlier molten Hadean Eon. There are microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia. Other early physical evidence of a biogenic substance is graphite in 3.7 billion-year-old metasedimentary rocks discovered in southwestern Greenland.