PPT-Life’s Structure: Building the Molecules

All life uses 6 major elements If we survey the molecules from which life is constructed we find six that are found in all living things and have often been described as the building block elements of . Ultimate . question . for biologists. Many theories/hypotheses/beliefs. Cultural: How is all life connected?. Religious: Is there a creator?. Philosophical: Are we here at all?. Scientific: How could life originate?. of Life. Tina . Šantl-Temkiv. Department of Bioscience. Department of Physics and Astronomy. Aarhus University. What. is . life. ?. Homeostasis. Organization. Metabolism: anabolism & catabolism. Ultimate . question . for biologists. Many theories/hypotheses/beliefs. Cultural: How is all life connected?. Religious: Is there a creator?. Philosophical: Are we here at all?. Scientific: How could life originate?. Rule Breakers . . Some molecules disobey octet rule. C, N, O, and F are mostly rule keepers. 1) Odd Number of Valence Electrons. 2) Incomplete Octets. 3) Expanded Valence Shells . Molecular Exceptions to the Octet Rule. polymers. four major classes of biologically important organic molecules: . carbohydrates. lipids. proteins . (and related compounds). nucleic acids . (and related compounds). Discuss hydrolysis and condensation, and the connection between them.. Cells from Molecules. The major molecules of life are packaged into cells. How are all these molecules of which we have spoken assembled into an organism? The cell . refers to the structure that encloses the apparatus that allows for the growth and reproduction of organisms. T. Carbon & The Molecular Diversity of Life Carbon: The Backbone of Life Living organisms consist mostly of carbon-based compounds Carbon is unparalleled in its ability to form large, complex, and diverse molecules Cell Structure and Function Chapter 2 Lesson 1: Cells and Life Understanding Cells People didn’t always know about cells Too small to be seen without proper tools Robert Hooke (English Scientist) 300 years ago he built a microscope In order to ensure the optimality of the cost incurred on the construction of the building it is always advisable to conduct various type of inspections. The main advantage of the inspection is that it points out the critical issues or flaws in a timely manner that further lead to timely rectification. What are Atoms?. Atoms. are the building blocks of matter made up of Protons, Neutrons & Electrons.. Inside the Atom. A . proton. is a positively charged (+) particle in the center of the atom. Theories of origin of life. What is life?. The condition that distinguishes . animals and plants. from . inorganic matter. , including the capacity for . growth. , . reproduction. , . functional activity. Contents. Some Key Events. Origins of Life on Earth. Domains of Life on Earth. Some key events. Earth: 4.55 billion years old. Heavy bombardment until 4.45 billion years ago. sporadic bombardment for 600 million years until 3.85 billion years ago. Learning Objectives:. LO 4.1 . The student is able to explain the connection between the sequence and the subcomponents of a biological polymer and its properties. [See . SP 7.1. ].  . LO 4.2 . The student is able to refine representations and models to explain how the subcomponents of a biological polymer and their sequence determine the properties of that polymer. [See . Chem. 1. Introduction to organic structure & bonding. 1.1: Drawing organic structures. A. Formal charge. B. Common bonding patterns. C. Using ‘line structure’ (aka line-bond) convention. D. Constitutional (aka structural) isomers.