Chapter 2 the chemical basis of life multiple choice questions 1. A pairs of nitrogenous bases b alternating deoxyribose sugar and phosphate groups. Composition of matter elements unique substances that cannot be broken down into simpler substances by ordinary chemical means each element is composed of atoms physical and chemical properties of an elements atoms give the element its unique properties atomic symbol one or twoletter chemical shorthand for each element. Each of the 15 chapters has a section on application to relevancy. Student academic learning services chemical basis of life quiz. All objects, whether living or nonliving, are made of matter.
Chapter 2 biology the chemical basis of life flashcards. Describe the unique properties of water and how these properties support life on earth freezing point, high specific heat, cohesion explain how carbon is uniquely suited to form biological macromolecules. There are only about 25 elements in the living body out of the 92 elements present in nature. To deal with disturbances, bombardier beetles mix together 2 different chemicals. Chemistry chemical basis of life power point chemical. Chemical reactions do not create or destroy matter. Explain how the valence electrons of an atom are related to the atoms chemical properties i. Carbon is present in all life all living things contain carbon in some form, and carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and carbohydrates. The chemical basis of life atoms, molecules, ions, and bonds. A chemical reaction in which chemical substances exchange molecules or elements to form different chemical substances. Living organisms are at the very least bags of chemical reactions.
Cannot be chemically broken down into other substances c. In its metabolism of food and respiration, an animal consumes glucose c 6 h 12 o 6, which combines with oxygen o 2 to produce carbon dioxide co 2, water h 2 o, and energy, which is given off as heat. Provide specific examples for water as a temperature regulator, solvent and lubricant. Chemical basis of life a free powerpoint ppt presentation displayed as a flash slide show on id. The basis of all food webs on earth can be produced through two processes photosynthesis photo light, synthesis to make chemosynthesis chem chemical, synthesis to make form the structural components of plants and many invertebrates. In your notes, write the numbers 17 then which of these statements about the world around us and inside us are fact, and which are fiction. Ppt chemical basis of life powerpoint presentation free. A specialized globular protein that carries out andor speeds up chemical reactions in the body by acting as a catalyst and. Chemistry of life 37 do not editchanges must be made through file info correctionkeya. Therefore, it is able to form multiple hydrogen bonds, which account for. Chapter 2 the chemical basis of life flashcards the smallest particle of an element that has the chemical characteristics of that element. Chemical basis of life honors biology 2011 chemistry of life living organisms are composed of about 25 chemical elements matter anything that occupies space and has mass matter is composed of elements element substance that cannot be broken down to other substances elements 1 2 3. In the past, the structure and transformation of matter was mainly of interest to chemists, not biologists. It intakes carbon dioxide, water, and energy from sunlight to make its own glucose and oxygen gas.
Adhesion water also sticks to other substances because of its unique bonding properties. The glucose is used for chemical energy, which the plant metabolizes in a similar way to an animal. In order to understand human physiological processes, it is important to understand how chemicals influence the human body. Other results for chapter 2 chemical basis of life answer key. Big idea living things depend on chemical reactions that require water, carbonbased molecules, and other. Describe the structure of an atom and the role of electrons in forming bonds and interactions between atoms that form molecules.
The molecular basis of life is a onesemester text focusing on the essential publisher. Here, you can learn about the key properties of atoms, including what particles they contain, how they are organized, and how they form chemical bonds with one another. Describe how biological macromolecules form from monomers. Most of your blood cholesterol comes from a your liver. Organic compounds we have already learned that water is the primary substance for life on earth, but we will now explore the element found in most of the molecules from which living organisms are made. Jan 19, 2020 the libretexts libraries are powered by mindtouch and are supported by the department of education open textbook pilot project, the uc davis office of the provost, the uc davis library, the california state university affordable learning solutions program, and merlot. Describe the difference between isotopes of an atom. Which 4 of these 25 elements make up approximately 96 percent of living matter. Which one of the following is the smallest unit of matter that has. When a molecule is attracted to a different molecule. Chapter 2 the chemical basis of life lecture by richard l.
From you, to your dog, to your dinner, to the global ecosystem, all living systems are made out of atoms that obey the basic rules of chemistry. Carbon exists in many forms in this leaf, including in the cellulose to form the leafs structure and in chlorophyll. Chemistry chemical basis of life power point free download as powerpoint presentation. These chemical compounds are formed by the bonding of naturally existing elements in different ways. The timesaving online video lessons in the chemical basis of life unit explore the chemical building blocks of biology on the atomic and molecular level. The animal has no need for the carbon dioxide and releases it into the atmosphere. Life is the resulting emergent properties of chemistry. The reactants h 2 and o 2 are converted to h 2 o, the product. Biochemistry the molecular basis of life 5th edition pdf download, biochemistry. To learn more about the book this website supports, please visit its information center 2007 mcgrawhill higher education any use is subject to the terms of use and. This crossword puzzle, chemical basis of life, was created using the crossword hobbyist puzzle maker.
Carbon is present in all life all living things contain carbon in some form, and carbon is the primary component of macromolecules. Explain how the structure of water molecules relates to waters unusual properties and to. Which of the following is a property of water that allows a water strider to walk on the surface. Which one of the following is the smallest unit of matter that has all the properties of an element.
Which of the following is not one of the most common elements in living things. Chemical basis of life 01 biology the bodies of all organisms are composed of variety of chemical compounds. Any of a group of substances derived from 20 carbon unsaturated fatty acids. Sep 08, 20 the chemical basis of life part 1 gerry foster. Chemical basis of life chemistry is the scientific study of the composition of matter and how composition changes. The chemical basis for life introduction to chemistry. Ions usually form when electrons are transferred from one atom to another.
That element is carbon and it is found in all organic compounds. In this unit, students will investigate explanations for the chemical basis of life including atoms. The chemical basis of life you may have read something like the value of all the chemicals in. These are chemical substances with a measurable ph above that of 7. The formation of water from hydrogen and oxygen is an example of a chemical reaction. Therefore, it is able to form multiple hydrogen bonds, which account for many of its special properties. Waters polarity gives it the ability to dissolve both ionic compounds and other polar molecules.
We also acknowledge previous national science foundation support under grant numbers 1246120, 1525057. Statement 1 if birds stored energy as carbohydrates instead of fat. Chapter 2 the chemical basis of lifepowerpoint lectures forcampbell biology. And chloride ions cl are important for a certain type of chemical signal in the brain. Therefore, to understand life, it is important to understand the basic concepts of chemistry. If the dna molecule resembles a twisted ladder, which chemical units form the sides of the ladder. Bozeman chemical basis of life describe how the polarity of water molecules results in the hydrogen bonding. Chapter 2 biology the chemical basis of life quizlet. Photosynthesis is a chemical reaction that is essential to life on earth. Chemical basis of life module a anchor 2 key concepts.
Carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and. Biochemistry the molecular basis of life 5th edition pdf. These are chemical compounds, primarily carbon and hydrogen, that exist in living organisms. Biological science, 6e freemanquillinallison chapter 2. Atoms are composed of subatomic particles, some of which have an electrical charge. Chemical basis of life use the illustration below to answer question 1. This is an element in the periodic table that is the basis for all organic molecules. The chemical basis of life explain chemistrys relevance to anatomy and physiology define matter, mass, and weight, atomic number, mass number, element, atom, molecule, and compound chemistry.
The chemical basis for life vocabulary worksheet 1 answers. Nov 19, 2019 a plant, on the other hand, uses the opposite reaction of an animal through photosynthesis. Ppt chemical basis of life powerpoint presentation. Matter is anything that has mass and occupies space.
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