Choose your answers to the questions and click next to see the next set of questions. A positive sodium ion is a sodium atom that has a positive charge because it has lost an electron. Clearly, it is to understand the chemistry of life. Chapter 02 the origin and chemistry of life 2 1 chapter 2 the origin and chemistry of life chapter outline 2. The elements carbon, hydrogen, nitrogen, oxygen, sulfur, and phosphorus are the key building blocks of the chemicals found in living things.
What is it about carbons atomic structure that makes it the building block of life. An element is a substance that cannot be broken down into other substances by chemical reactions. A sodium atom is a neutral particle that contains equal numbers of protons and electrons. Classroom activities will begin with the concepts that all living and nonliving things are composed of matter and this matter is composed of atoms. Chapter 2 the chemistry of life section 1 matter and organic compounds. Whereas hydrogen sulfide h2s is a gas at room temperature and standard pressure, as its. Chapter 02 the chemistry of life multiple choice questions many traits of organisms, such as body form and color, are controlled by specific proteins, in turn controlled by the dna genetic sequence of nucleotides. The subatomic particles that make up atoms are protons, neutrons, and electrons. Atoms make up all matter matter takes up space energy ability to do work 3. You may use this website for access to ppts, guided notes, and make up assignments. Chapter 2 atoms, molecules, and ions home chemistry. Name the four different types of organic molecules. Chapter 2 provides an overview of the basic principles of chemistry making up the first hierarchal level of living systems discussed in chapter 1. You will identify the building blocks that form the major biological molecules.
For each of the following, provide the number of electrons, protons, neutrons and atomic number in its elemental form. Therefore, to understand life, it is important to understand the basic concepts of chemistry. If you continue browsing the site, you agree to the use of cookies on this website. Understand the fundamental structures, functions, classifications, and mechanisms found in living things. The genetic control of color, as in aphids, does not usually shift during the life of an organism. Chapter 2 the chemistry of life 21 the nature of matter the basic unit of matter is the atom. The nucleus, the center of the atom, is ma e up of and 2. The chemistry of life chapter 2 linkedin slideshare. The negatively charged particles in atoms are called 3.
The structure and function of all living things are governed by the laws of chemistry. Explain why electrons determine the chemical behavior of atoms 2. Chapter 2 the chemistry of life answer key mafiadoc. Below you find the classroom assignments and ppts used for chapter 2, the chemistry of life. An understanding of the basic principles of chemistry will give you a better understanding of living things and how they function. Atoms make up all matter elements are fundamental types of matter element cannot be broken down bulk elements 25 elements essential to life minerals trace elements. Lectures by chris romero, updated by erin barley with contributions from joan sharp. What does the term alkaline and acids mean in regards to ions. Chapter 2 the chemistry of life slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. In terms of science, what does the term organic mean.
Chapter 2 the chemistry of life section 1 matter and. A molecule of water is represented by the chemical formula h. The elements carbon, hydrogen, nitrogen, oxygen, sulfur, and phosphorus are the key building blocks of the chemicals found in. Click card to see definition tap card to see definition protons, neutrons, and electrons. The chemistry of life chapter of this prentice hall biology companion course helps students learn essential biology lessons on the chemistry of life. Chemistry of life 31 composition ofmatter earth supports an enormous variety of organisms. The subscript 2 represents two atoms of hydrogen h combined with one atom of oxygen o. Synthesis describe how living systems use biofeedback mechanisms to maintain homeostasis. Chapter 2 the chemistry of life the beautiful feathers of this great egret are made up of protein. Homework date assigned assignment description date due assignment locationlink. Chapter 2 the chemistry of life flashcards quizlet. The primary focus of this unit is the development of understanding as related to the chemical basis of life. In an ionic bond, one atom transfers electrons to another atom c.
Proteins are one of the main groups of carbon compounds found in living things. Pdf chapter 02 the origin and chemistry of life 21. Identify the three subatomic particles found in atoms. Chemistry is the scientific discipline involved with elements and compounds composed of. Its actuallyacomplexpatternofthreedimensionalshapes. Provide examples of the importance of chemistry in everyday life.