https://www.khanacademy.org/science/ap-biology/chemistry-of-life/elements-of-life/v/elemental-building-blocks-of-biological-molecules 2023-02-11T04:51:02.118761433Z Elemental building blocks of biological molecules Common elemental building blocks of biological molecules: Carbon, Oxygen, Hydrogen, Nitrogen and Phosphorus video https://cdn.kastatic.org/googleusercontent/rZ_StelV0pgmZLadnxWk2JY5EK5quy6Zw-N6qf6E_DQdW50-2BzfQ9rWl2JO2ppehuIK6lQj3v0GnF2nSh9ueyyXhQ Elemental building blocks of biological molecules Common elemental building blocks of biological molecules: Carbon, Oxygen, Hydrogen, Nitrogen and Phosphorus https://cdn.kastatic.org/ka-youtube-converted/vnsrBHkYTq4.mp4/vnsrBHkYTq4.mp4 271 Biological molecules composition, formation, and identification tests https://www.khanacademy.org/science/ap-biology/chemistry-of-life/elements-of-life/v/carbon-as-a-building-block-of-life 2021-03-18T10:33:24Z Carbon as a building block of life Carbon as a building block of life. video https://cdn.kastatic.org/googleusercontent/j0u6MzhfRByCilXBBY1qc_J6F_PLFwpcchq2eWd76GBLA6dLpFaOYPAwQjblcgWfzdo2VnkHrwxjpIVf82IV3Tgn Carbon as a building block of life Carbon as a building block of life. https://cdn.kastatic.org/ka-youtube-converted/JgYlogdtJDo.mp4/JgYlogdtJDo.mp4 542 Biological molecules composition, formation, and identification tests https://www.khanacademy.org/science/ap-biology/chemistry-of-life/properties-structure-and-function-of-biological-macromolecules/v/introduction-to-carbohydrates 2023-04-04T21:01:09.417661961Z Introduction to carbohydrates A carbohydrate is a type of molecule that contains carbon, hydrogen, and oxygen. Carbohydrates can be simple sugars (monosaccharides) like glucose, or they can be made up of multiple sugar units (polysaccharides) like glycogen. They are important in biology as a source of energy and as structural components in plants. video https://cdn.kastatic.org/googleusercontent/d4DSgNMDHgUbRMtEElZfALYamopcHnjOUDhjw7kBPF6_m96DuOVsamPlkdBfgp2vUXJWvBk9Fr0nYLp1SvThlSFD Introduction to carbohydrates A carbohydrate is a type of molecule that contains carbon, hydrogen, and oxygen. Carbohydrates can be simple sugars (monosaccharides) like glucose, or they can be made up of multiple sugar units (polysaccharides) like glycogen. They are important in biology as a source of energy and as structural components in plants. https://cdn.kastatic.org/ka-youtube-converted/6o4WL5jlpn0.mp4/6o4WL5jlpn0.mp4 268 Biological molecules composition, formation, and identification tests https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:biological-molecules/x2a084a90105205d2:biological-molecules-composition-formation-and-identification-tests/v/carbohydrates-naming-and-classification 2023-08-14T21:12:46.061619254Z Carbohydrates - naming and classification Explore the world of carbohydrates, essential compounds for our bodies. Dive into the structure of monosaccharides like glucose and fructose, and learn how they provide energy. Discover the role of polysaccharides like cellulose in plant cell walls. Uncover the beauty of ribose in RNA. Understand the naming conventions based on carbon chain length and functional groups. Ryan Scott Patton video https://cdn.kastatic.org/googleusercontent/pcY1PNXnSQ7VABja9lJKY6RNTKoX0wqVMagIkOOAyBtJjVvXq1QZXUgfyo3W4_MBuvLd4EyvqtZWI8vCh5hSX3A Carbohydrates - naming and classification Explore the world of carbohydrates, essential compounds for our bodies. Dive into the structure of monosaccharides like glucose and fructose, and learn how they provide energy. Discover the role of polysaccharides like cellulose in plant cell walls. Uncover the beauty of ribose in RNA. Understand the naming conventions based on carbon chain length and functional groups. https://cdn.kastatic.org/ka-youtube-converted/doe_zZDjU5c.mp4/doe_zZDjU5c.mp4 627 Biological molecules composition, formation, and identification tests https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:energy-and-matter-in-biological-systems/x230b3ff252126bb6:biomolecules-and-reactions/v/introduction-to-proteins-and-amino-acids 2023-09-14T11:07:34.466749579Z Introduction to proteins and amino acids Proteins, large biomolecules or macromolecules, play a vital role in almost every biological process. They are made up of chains of amino acids, which are their building blocks. These chains, known as polypeptides, can form complex shapes, contributing to the diverse functions of proteins. Proteins can provide structure, facilitate muscle contraction, catalyze reactions as enzymes, and participate in immune response and signaling. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/7d140eef-7cac-45a0-9370-f705e69d9d10_1280_720_base.png Introduction to proteins and amino acids Proteins, large biomolecules or macromolecules, play a vital role in almost every biological process. They are made up of chains of amino acids, which are their building blocks. These chains, known as polypeptides, can form complex shapes, contributing to the diverse functions of proteins. Proteins can provide structure, facilitate muscle contraction, catalyze reactions as enzymes, and participate in immune response and signaling. https://cdn.kastatic.org/ka-youtube-converted/78QUeXVKiJ4.mp4/78QUeXVKiJ4.mp4 353 Biological molecules composition, formation, and identification tests https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:energy-and-matter-in-biological-systems/x230b3ff252126bb6:biomolecules-and-reactions/v/introduction-to-lipids 2024-05-08T18:05:37.173521444Z Introduction to lipids Lipids, commonly associated with fats, are a group of biomolecules with low water solubility. Lipids are essential for storing energy, transmitting signals, and creating cellular membranes. Triglycerides, another name for fats, consist of three fatty acids attached to a glycerol. Lipids also encompass hormones and fat-soluble vitamins, making them vital for biological systems. video https://cdn.kastatic.org/ka_thumbnails_cache/78dbf842-7716-417e-97c6-f1d25d43d93a_1280_720_base.png Introduction to lipids Lipids, commonly associated with fats, are a group of biomolecules with low water solubility. Lipids are essential for storing energy, transmitting signals, and creating cellular membranes. Triglycerides, another name for fats, consist of three fatty acids attached to a glycerol. Lipids also encompass hormones and fat-soluble vitamins, making them vital for biological systems. https://cdn.kastatic.org/ka-youtube-converted/HGg_WiaSr4U.mp4/HGg_WiaSr4U.mp4 343 Biological molecules composition, formation, and identification tests https://www.khanacademy.org/science/ap-biology/gene-expression-and-regulation/dna-and-rna-structure/v/introduction-to-nucleic-acids-and-nucleotides 2023-06-06T10:35:22.92767095Z Introduction to nucleic acids and nucleotides Nucleic acids, crucial macromolecules for life, were first discovered in cell nuclei and exhibit acidic properties. DNA and RNA, composed of nucleotide building blocks, store hereditary information. These polymers have a backbone of alternating ribose and phosphate groups, with nitrogenous bases forming ladder rungs. The sequence of nucleotides encodes genetic information, making nucleic acids fundamental to life. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/6074048f-6b8d-4794-b02a-7bb056d6dff4_1280_720_base.png Introduction to nucleic acids and nucleotides Nucleic acids, crucial macromolecules for life, were first discovered in cell nuclei and exhibit acidic properties. DNA and RNA, composed of nucleotide building blocks, store hereditary information. These polymers have a backbone of alternating ribose and phosphate groups, with nitrogenous bases forming ladder rungs. The sequence of nucleotides encodes genetic information, making nucleic acids fundamental to life. https://cdn.kastatic.org/ka-youtube-converted/hI4v7v8AdfI.mp4/hI4v7v8AdfI.mp4 355 Biological molecules composition, formation, and identification tests https://www.khanacademy.org/science/ap-biology/chemistry-of-life/properties-structure-and-function-of-biological-macromolecules/a/carbohydrates 2026-03-17T04:30:40.156944414Z Carbohydrates Overview of carbohydrates, including structure and properties of monosaccharides, disaccharides, and polysaccharides. article https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:energy-and-matter-in-biological-systems/x230b3ff252126bb6:biomolecules-and-reactions/a/types-of-biomolecules 2024-06-12T19:16:42.550703216Z Types of biomolecules Learn about biomolecules and their roles in cellular processes, functions, and structures. article https://www.khanacademy.org/science/ap-biology/chemistry-of-life/elements-of-life/e/elements-of-life-exercise 2026-04-20T05:52:07.909428702Z Elements of life Test your knowledge of the elements of life! Ashley Mucha exercise https://www.khanacademy.org/science/ap-biology/chemistry-of-life/introduction-to-biological-macromolecules/e/introduction-to-biological-macromolecules-exercise 2023-08-07T17:09:37.131449861Z Introduction to biological macromolecules Test your knowledge of biological macromolecules! Haider Ali Bhatti exercise