Introduction To Biochemistry: Group 5 Section 2

Introduction to Biochemistry GROUP 5 SECTION 2

DEFINITION OF TERM BIOCHEMISTRY: - It is the branch of science that is concerned with the chemical and physicochemical processes and substance that occur with living organism. - Biochemistry is also the application of chemistry to the study of biological processes at the cellular and molecular level.

BIOCHEMISTRY IN NURSING BIOCHEMISTRY: - It is important and crucial to nurses in understanding of how the human body functions on normal and various disease state. And the intervention of the nurses are based on their understanding.

Properties of Living Systems - Chemical Uniqueness - Complex Hierarchical Organization - Reproduction - Genetic Program - Metabolism - Development - Environment Interaction

Chemical Uniqueness - Determined by way 4 Major Macromolecules are put together. Ex. 1. Nuclei Acids 2. Lipids 3. Proteins 4. Carbohydrates

Complex Hierarchical Organization - Unique to living systems and has levels of organizations Cell Tissue Organs Organ System Organism Population Species

Properties of water and Its importance Water is essential to life because of four important properties: polarity, cohesion and adhesion, water's high specific heat and Evaporative cooling.

POLARITY - When the two hydrogen atoms bond with the oxygen, they attach to the top of the molecule. - The end of the molecule with the two hydrogen atoms is positively charged. The other end, with the oxygen, is negatively charged. - the positive end of the water molecule will connect with the negative end of other molecules ('opposites attract'). - Water's polarity allows it to dissolve other polar substances very easily. - The attractions cause the molecules of the new substance to be mixed uniformly with the water molecules. Water dissolves more substances than any other liquid – even the strongest acid! Because of this, it is often called the 'universal solvent.'  

Importance of POLARITY - The dissolving power of water is very important for life on Earth. Wherever water goes, it carries dissolved chemicals, minerals, and nutrients that are used to support living things.

Cohesion and adhesion - cohesion: Water is attracted to water. Adhesion: Water is attracted to other things.

Importance of Cohesion and Adhesion - Water striders (insects) glide across water surfaces owing to the cohesive property or water. - Water droplets from a plants, allowing the plants to soak up the water over time rather than all at once.

Water’s high specific heat and evaporative Cooling - Water has a very high specific heat, which means it can take in a lot of heat before changing temperature. - when heat energy is transferred to water molecules , and evaporating water removes a lot of heat energy from an organism

Importance of Water’s high specific heat and evaporative Cooling - Water covers around 70% of the earth surface and its high specific heat plays a very important role As it is able to absorb a lot of heat without significant rise in the temperature. - Our bodies are designed to sweat to release heat and keep our body at its natural temperature when it gets too hot. Our skin releases sweat which contains water. The water absorbs the heat from our skin and it is eventually evaporates, taking the extra heat in our skin with it. This decreases our body temperature and keeps us from overheating.

references - https://prezi.com/wc80qizrtqbp/water-properties-essential-to-life/ - https:// www.enotes.com/homework-help/what-properties-cohesion-adhesion-why-they-764682 - https:// www.enotes.com/homework-help/what-properties-cohesion-adhesion-why-they-764682 - https://learning-center.homesciencetools.com/article/properties-water-science-lesson/ - https://socratic.org/questions/what-are-some-examples-of-properties-of-water - https:// www.enotes.com/homework-help/what-importance-high-specific-heat-water-life-245731 - https://staffweb.psdschools.org/shunter/zoologyweb/Intro/PropsoflivSystppt09.pdf - https://quizlet.com/68406299/general-properties-of-living-systems-flash-cards/ -