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- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_2%3A_The_Physical_Environment/2.1%3A_Properties_of_WaterDo you ever wonder why scientists spend time looking for water on other planets? It is because water is essential to life; even minute traces of it on another planet can indicate that life could or di...Do you ever wonder why scientists spend time looking for water on other planets? It is because water is essential to life; even minute traces of it on another planet can indicate that life could or did exist on that planet. Water is one of the more abundant molecules in living cells and the one most critical to life as we know it. Approximately 60–70 percent of your body is made up of water. Without it, life simply would not exist.
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/02%3A_The_Physical_Environment/2.01%3A_Properties_of_WaterDo you ever wonder why scientists spend time looking for water on other planets? It is because water is essential to life, as we understand it; even minute traces of it on another planet can indicate ...Do you ever wonder why scientists spend time looking for water on other planets? It is because water is essential to life, as we understand it; even minute traces of it on another planet can indicate that life could or did exist on that planet. Water is one of the more abundant molecules in living cells and the one most critical to life as we know it. Approximately 60–70 percent of your body is made up of water. Without it, life simply would not exist.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/01%3A_The_Chemical_Basis_of_Life/1.08%3A_pHThis page explains pH as a measure of hydrogen ion concentration, noting that pure water has a pH of 7. It describes how acidic solutions (pH < 7) have higher H+ concentrations and basic solutions (pH...This page explains pH as a measure of hydrogen ion concentration, noting that pure water has a pH of 7. It describes how acidic solutions (pH < 7) have higher H+ concentrations and basic solutions (pH > 7) have lower. The impact of pH on protein properties and amino acid interactions is highlighted. Additionally, it mentions that the typical cytosolic pH in human cells is 7.4, with variations in organelles like lysosomes and mitochondria, which are essential for enzyme activity and ATP synthesis
