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- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/17%3A_Ecology/17.02%3A_Cycles_of_Matter_in_the_Biosphere/17.2G%3A_Air_PollutionThis page discusses how human activities emit air pollutants like PM2.5, which are linked to health problems such as asthma and lung cancer. The EPA suggests maintaining PM2.5 levels under 15 µg/m3 fo...This page discusses how human activities emit air pollutants like PM2.5, which are linked to health problems such as asthma and lung cancer. The EPA suggests maintaining PM2.5 levels under 15 µg/m3 for better health outcomes. It also highlights other pollutants, including sulfur dioxide and carbon monoxide, that contribute to photochemical smog, causing eye irritation. Catalytic converters in vehicles help reduce these emissions, thereby improving air quality.
- 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/1.02%3A_Chemical_FoundationsThe page provides an overview of organic molecules, focusing on various functional groups fundamental to understanding biochemistry. It details different classes of organic compounds, such as alkanes,...The page provides an overview of organic molecules, focusing on various functional groups fundamental to understanding biochemistry. It details different classes of organic compounds, such as alkanes, alkenes, alkynes, aromatics, alcohols, phenols, thiols, ethers, sulfides, amines, phosphates, aldehydes, ketones, and carboxylic acids, describing their structures and reactions.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/02%3A_The_Molecules_of_Life/2.02%3A_HydrocarbonsThis page discusses hydrocarbons, organic compounds made of carbon and hydrogen, categorized into aliphatic (linear chains) and aromatic (ring structures). Aliphatic hydrocarbons include saturated com...This page discusses hydrocarbons, organic compounds made of carbon and hydrogen, categorized into aliphatic (linear chains) and aromatic (ring structures). Aliphatic hydrocarbons include saturated compounds like methane and unsaturated types like ethylene. Aromatic hydrocarbons are based on benzene rings and occur in biological molecules, including amino acids, cholesterol, and hormones. Beta-carotene is highlighted as a hydrocarbon containing both aliphatic and aromatic components.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/02%3A_The_Molecules_of_LifeThis page covers the structure and functions of various organic molecules such as hydrocarbons, fats, phospholipids, cholesterol, carbohydrates, amino acids, and proteins. It details the classificatio...This page covers the structure and functions of various organic molecules such as hydrocarbons, fats, phospholipids, cholesterol, carbohydrates, amino acids, and proteins. It details the classification of hydrocarbons, the composition of fats and phospholipids, the role of cholesterol in cell membranes, and the significance of carbohydrates as glucose polymers. Proteins, essential for life, are derived from amino acids, with their functions influenced by their structures.
