Carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and carbohydrates. The two fatty acid tails of the phospholipid are nonpolar and hydrophobic and the phosphate head is polar and hydrophilic. To deal with disturbances, bombardier beetles mix together 2 different chemicals. The chemical basis for life introduction to chemistry. 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. Chemical basis of life 1 chemical basis of life chapter 2 2. Unless otherwise indicated, an atom has an equal number of protons. Dowdupont merger successfully completed dow chemical company. Waters polarity gives it the ability to dissolve both ionic compounds and other polar molecules. Describe the current model of an atom and compare the subatomic particles. The chemical basis of life is covered in this tutorial. General, organic, and biological chemistry for the health sciences schmid, george h on. Living organisms are composed of about 25 chemical elements.
Describe how biological macromolecules form from monomers. Chemical basis of life chemistry is the scientific study of the composition of matter and how composition changes. Study 40 chapter 2 the chemical basis of life flashcards from krystal p. General, organic, and biological chemistry for the health sciences. Therefore, it is able to form multiple hydrogen bonds, which account for many of its special properties. Welcome to the human anatomy and physiology electronic frontier classroom of the 21st century. Chemical bonds result from trading or sharing electrons. Full text full text is available as a scanned copy of the original print version. There are 92 naturally occurring elements 112 known living organisms. Carbon exists in many forms in this leaf, including in the cellulose to form the leafs structure and in chlorophyll. This test is based upon basic chemical principles along with a touch of organic chemistry. Chapter 2 the chemical basis of life lecture by richard l. Matter is anything that has mass and occupies space. The chemical basis of life information technology services.
Synthesis involves the building of a large molecule polymer from smaller building blocks monomer. Get a printable copy pdf file of the complete article 1. This material was adapted from the original ck12 book that can be found here. Another class of bases, especially important in living cells, are those that. The chemical basis of life chapter 2 objectives identify the four elements that make up 96% of living matter.
Chapter 2 chemical basis of life why study chemistry in an anatomy and physiology class. In this lesson you will learn about the chemical substances that make up living things. Chapter 2 biology the chemical basis of life flashcards. The polarity of water molecules makes water especially good at forming mixtures. 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 order to understand human physiological processes, it is important to understand how chemicals influence the human body. Matter is anything that has weight and takes up space. In the past, the structure and transformation of matter was mainly of interest to chemists, not biologists. The chemical compounds of living things are known as organic compounds because of their. Chemical basis of life module a anchor 2 key concepts. You can customize the printable with the options shown below, or you can just click the make printable quiz button to create it now. The nucleus consists of neutrons and protons neutrons have no charge neutral and a mass of one atomic mass unit amu protons have a positive charge and a mass of one amu electrons have a negative charge and 12000 the mass of a proton 0 amu electrons are located in regions orbitals around the nucleus atomic structure. Compare and contrast the chemical composition of selected organic molecules found in living cells. They can combine to form molecules with complex shapes. The chemical components of a cell molecular biology of the cell. This unit comprises 12% of the information on the keystone exam. This work is licensed under the creative commons attributionshare alike 3.
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. Just deduct your cost basis from the sales proceeds to determine your gain or loss. The combined entity is operating as a holding company under the name dowdupont with three divisions agriculture, materials science. Molecular weight and the mole the weight of a molecule is the sum of the weights of the atoms of which it is made.
Starting with atoms and elements the tutorial expands towards covalently bonded organic molecules and the biochemical reactions they are involved in. High school biologychemical basis of life wikibooks. Dwdp today announced the successful completion of the merger of equals between the dow chemical company dow and e. The chemical basis of life atoms, molecules, ions, and. How is life a product of the organization and interaction of matter. If you continue browsing the site, you agree to the use of cookies on this website. Biochemical compounds make up the cells and other structures of organisms and carry out life processes. Chapter 4 the chemical basis of life proprofs quiz.
All objects, whether living or nonliving, are made of matter. Thus, an atom of helium, with 2 protons, has an atomic number of 2. Cells use organic molecules such as enzymes to maintain homeostasis. Chemical reaction comparison table outline page 23 synthesis reactions.
This unit includes the emergent properties of water and organic compounds and how they are essential for life on earth. Periodic table of the elements in chemistry part 1 math tutor duration. The physicochemical basis of life in 1944, the physicist erwin schroedinger, winner of the nobel prize in physics in 1933 together with paul dirac published a short volume called what is life. Which of the following is not one of the most common elements in living things.
A knowledge of chemistry is necessary for the understanding of physiology because of the importance of chemicals in body processes. Test exam mode which does not reveal the answer during the testing period. Chemistry deals with the composition of matter and how it changes. Water, a simple but elegant molecule, predominates in living organisms and is unique in the lifegiving. Figure 22 glucose and fructose molecules combine to form the disaccharide sucrose. Living organisms are at the very least bags of chemical reactions.
Life is the resulting emergent properties of chemistry. The unit of weight is the dalton, onetwelfth the weight of an atom of c12. Every unlimited number of attempts will generate a. The chemical basis of life chapter pearson education. Download as docx, pdf, txt or read online from scribd. Ppt chemical basis of life powerpoint presentation.
The simplest form of matter to have unique chemical properties, composed of atoms of only one kind. Chemicals play many more roles in life making up our bodies, those of other organisms, and the physical environment. Chapter 02 lifes chemical basis copyright cengage learning. 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. Which one of the following is the smallest unit of matter that has. Chapter 2 the chemical basis of life multiple choice questions 1.
It is these electrons that determine the chemical behavior of an atom, and all of the. The series includes high school biology, ap biology, sat biology, college biology, microbiology, human anatomy and physiology, and genetics. Chemical background for ap biology slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Chemicals are the fundamental parts of all living things. Chapter 2 the chemical basis of lifepowerpoint lectures forcampbell biology. Degradation involves the breakdown of polymer into individual monomers. Biological matter is comprised of small molecules e.
1264 1540 298 985 1606 1503 800 1194 589 770 337 838 1408 466 1006 1076 774 1279 1111 803 1055 608 90 1102 1491 294 551 1269 512 657 369 319 830 1087 1404 52 832 12 251 1025 1157 799 1324 1061 983 238 900 476