Molecules and cells 0.0 / 5 ? BiologyBiological moleculesASCCEA Created by: jodimcc123Created on: 07-09-19 17:53 Why are biochemical reactions carried out in solution? Since the water content in seeds and spores is as low as 10%, their biochemical activity is suspended until they become rehydrated 1 of 11 What is water used for in biochemical reactions? Transports nutrients and waste substances. 2 of 11 What is cohesion? The hydrogen bonding of water molecules. 3 of 11 What important role does water have in temperature regulation? The evaporation of water cools things down. 4 of 11 What type of energy can break hydrogen bonds easily? Heat/Latent heat of evaporation 5 of 11 Why can living organisms absorb certain elements? Ions are soluble in water. 6 of 11 What is the role of potassium ions in absorption? They maintain osmotic balance. 7 of 11 What is the role of hydrogen carbonate ions in absorption? Acts as a pH buffer. 8 of 11 Is glucose polar or non-polar? Polar 9 of 11 Are amino acids polar or non-polar? Polar 10 of 11 What influences how ions and polar molecules pass through cell-surface membranes? If the charged ions or polar molecules have shells or clusters of water 11 of 11
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