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- https://bio.libretexts.org/Courses/University_of_California_Davis/BIS_2A%3A_Introductory_Biology_(Igo)/Winter_2018_Igo_Readings/W2018_Bis2A_Lecture05_readingpK a is defined as the negative log 10 of the dissociation constant of an acid, its K a . Therefore, the pK a is a quantitative measure of how easily or how readily the acid gives up its proton [H + ]...pK a is defined as the negative log 10 of the dissociation constant of an acid, its K a . Therefore, the pK a is a quantitative measure of how easily or how readily the acid gives up its proton [H + ] in solution and thus a measure of the "strength" of the acid.
- https://bio.libretexts.org/LibreTexts/University_of_California_Davis/BIS_2A%3A_Introductory_Biology_(Igo)/Winter_2018_Igo_Readings/W2018_Bis2A_Lecture05_readingpK a is defined as the negative log 10 of the dissociation constant of an acid, its K a . Therefore, the pK a is a quantitative measure of how easily or how readily the acid gives up its proton [H + ]...pK a is defined as the negative log 10 of the dissociation constant of an acid, its K a . Therefore, the pK a is a quantitative measure of how easily or how readily the acid gives up its proton [H + ] in solution and thus a measure of the "strength" of the acid.
- https://bio.libretexts.org/Courses/North_Central_State_College/BIOL_1550%3A_Microbiology_(2025)/03%3A_Macromolecules/3.07%3A_Lipids_-_Phospholipids_and_MembraneAlthough they are composed primarily of carbon and hydrogen, lipid molecules may also contain oxygen, nitrogen, sulfur, and phosphorous. Lipids serve numerous and diverse purposes in the structure and...Although they are composed primarily of carbon and hydrogen, lipid molecules may also contain oxygen, nitrogen, sulfur, and phosphorous. Lipids serve numerous and diverse purposes in the structure and functions of organisms. They can be a source of nutrients, a storage form for carbon, energy-storage molecules, or structural components of membranes and hormones. Lipids comprise a broad class of many chemically distinct compounds, the most common of which are discussed in this section.
- https://bio.libretexts.org/Courses/North_Central_State_College/BIOL_1550%3A_Microbiology_(2025)/03%3A_Macromolecules/3.06%3A_Lipids_-_TriacylglyceridesAlthough they are composed primarily of carbon and hydrogen, lipid molecules may also contain oxygen, nitrogen, sulfur, and phosphorous. Lipids serve numerous and diverse purposes in the structure and...Although they are composed primarily of carbon and hydrogen, lipid molecules may also contain oxygen, nitrogen, sulfur, and phosphorous. Lipids serve numerous and diverse purposes in the structure and functions of organisms. They can be a source of nutrients, a storage form for carbon, energy-storage molecules, or structural components of membranes and hormones. Lipids comprise a broad class of many chemically distinct compounds, the most common of which are discussed in this section.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/03%3A_The_Cellular_Basis_of_Life/3.02%3A_Cell_MembranesThis page explains the plasma membrane as a universal cell feature, acting as a boundary between the interior and environment. It consists of a phospholipid bilayer with hydrophobic tails inward and i...This page explains the plasma membrane as a universal cell feature, acting as a boundary between the interior and environment. It consists of a phospholipid bilayer with hydrophobic tails inward and includes integral and peripheral membrane proteins. Integral proteins traverse the bilayer, while peripheral proteins are loosely attached. Some proteins are fixed in place by the cytoskeleton or extracellular matrix, and others are restricted by tight junctions.
- https://bio.libretexts.org/Courses/Folsom_Lake_College/BIOL_310%3A_General_Biology_(Wada)/02%3A_Biological_Macromolecules/2.03%3A_Biological_MoleculesThere are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. C...There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. Combined, these molecules make up the majority of a cell’s mass. Biological macromolecules are organic, meaning that they contain carbon (with some exceptions, like carbon dioxide).
- https://bio.libretexts.org/Courses/Sacramento_City_College/BIOL_440%3A_General_Microbiology_(Hughes)/02%3A_Week_2/02%3A_Microbial_Biochemistry/2.03%3A_LipidsAlthough they are composed primarily of carbon and hydrogen, lipid molecules may also contain oxygen, nitrogen, sulfur, and phosphorous. Lipids serve numerous and diverse purposes in the structure and...Although they are composed primarily of carbon and hydrogen, lipid molecules may also contain oxygen, nitrogen, sulfur, and phosphorous. Lipids serve numerous and diverse purposes in the structure and functions of organisms. They can be a source of nutrients, a storage form for carbon, energy-storage molecules, or structural components of membranes and hormones. Lipids comprise a broad class of many chemically distinct compounds, the most common of which are discussed in this section.
- https://bio.libretexts.org/Bookshelves/Biochemistry/Fundamentals_of_Biochemistry_(Jakubowski_and_Flatt)/01%3A_Unit_I-_Structure_and_Catalysis/01%3A_The_Foundations_of_Biochemistry/1.01%3A_Cellular_FoundationsThe page introduces biochemistry fundamentals from a chemical perspective, focusing on key cellular components and their chemical processes. It outlines the basic structure of prokaryotic and eukaryot...The page introduces biochemistry fundamentals from a chemical perspective, focusing on key cellular components and their chemical processes. It outlines the basic structure of prokaryotic and eukaryotic cells, highlighting the importance of genetic material, ribosomes, and the lipid bilayer. The text delves into the four classes of biomolecules including lipids, proteins, nucleic acids, and carbohydrates, and their roles in cellular metabolism.
- https://bio.libretexts.org/Bookshelves/Biochemistry/Fundamentals_of_Biochemistry_(Jakubowski_and_Flatt)/01%3A_Unit_I-_Structure_and_Catalysis/10%3A_Lipids/10.04%3A_Working_with_LipidsThis section delves into the complex world of lipids, highlighting their structural heterogeneity and key applications in creating liposomes, which are useful for medical purposes like drug delivery a...This section delves into the complex world of lipids, highlighting their structural heterogeneity and key applications in creating liposomes, which are useful for medical purposes like drug delivery and studying membrane proteins. Techniques for liposome production and lipid analysis, such as gas chromatography and mass spectrometry, are discussed for their roles in biochemistry and disease research.
- https://bio.libretexts.org/Courses/Roosevelt_University/BCHM_355_455_Biochemistry_(Roosevelt_University)/01%3A_Molecules_of_Life/1.07%3A_Types_of_Biological_MoleculesThere are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. C...There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. Combined, these molecules make up the majority of a cell’s mass. Biological macromolecules are organic, meaning that they contain carbon (with some exceptions, like carbon dioxide).
- https://bio.libretexts.org/Courses/City_College_of_San_Francisco/Introduction_to_Microbiology_(Liu_et_al.)/03%3A_Macromolecules/3.07%3A_Lipids_-_Phospholipids_and_MembraneAlthough they are composed primarily of carbon and hydrogen, lipid molecules may also contain oxygen, nitrogen, sulfur, and phosphorous. Lipids serve numerous and diverse purposes in the structure and...Although they are composed primarily of carbon and hydrogen, lipid molecules may also contain oxygen, nitrogen, sulfur, and phosphorous. Lipids serve numerous and diverse purposes in the structure and functions of organisms. They can be a source of nutrients, a storage form for carbon, energy-storage molecules, or structural components of membranes and hormones. Lipids comprise a broad class of many chemically distinct compounds, the most common of which are discussed in this section.
