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Nucleic acids, proteins, lipids, and carbohydrates
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- “As basic building blocks of life, all living organisms use nucleic acids, proteins, lipids, and carbohydrates, as well as a variety of small molecules such as metabolites, messengers, and energy carriers.
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All living organisms are composed of one or more cells, which are regarded as the basic units of life. Even unicellular organisms are intricate! Inside each cell, atoms combine to form molecules, which then combine to form cell organelles and structures.
- Structure of water and hydrogen bonding. Water is so essential to life that we sometimes forget how complicated it is. Learn. Hydrogen bonding in water. (Opens a modal)
- Elements of life. I have a feeling we're not talking about arsenic... Learn. Elements and atoms. (Opens a modal) Matter, elements, and atoms. Carbon as a building block of life.
- Introduction to biological macromolecules. Macromolecules... isn't that an oxymoron? Learn. Ionic bonds. (Opens a modal) Covalent bonds. Chemical bonds.
- Properties, structure, and function of biological macromolecules. DNA: it's what's in you. Alongside, you know, a whole bunch of other stuff. Learn. Molecular structure of DNA.
Feb 27, 2021 · As a fundamental unit of the biosphere, it is appropriate to choose living cells, which were discussed in Chapter 7, Section 7.2, as entities in which biochemical processes occur. A single cell visible only under a microscope may perform all the functions required for an organism to process nutrients and energy and to reproduce.
Our opening unit introduces students to the sciences, including the scientific method and the fundamental concepts of chemistry and physics that provide a framework within which learners comprehend biological processes.
May 14, 2022 · Unit 1: The Chemical Basis of Life - Biology LibreTexts. Page ID. 3735. John W. Kimball. Tufts University & Harvard. The following pages examine some of the principles of chemistry upon which an understanding of modern biology depends. 1.1: Mixtures and Compounds. 1.2: Elements and Atoms. 1.3: Electronegativity and types of Chemical Bonds.
Khan Academy
Dec 22, 2021 · At its most fundamental level, life is made up of matter. Matter occupies space and has mass. All matter is composed of elements, substances that cannot be broken down or transformed chemically into other substances.
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