The importance of water in Biological Systems Much of the Earths surface is comprised of water‚ as well as much of biological systems; for instance‚ the human body consists of approximately 70% of water‚ and in other biological organisms this figure could even be 95%. This largely relies on the bonding of water‚ whereby two hydrogen atoms bond to one oxygen atom; hydrogen bonding is the strongest intermolecular force due to its high polarity. Hence‚ what is the biological importance of water?
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Importance of stereoisomers in a biological system Isomers are compounds that have the same molecular formula but different structural formulas. Stereoisomers are isomers that have the same sequence of bonded atoms‚ but they differ in their three dimensional orientation in space. [pic] shown above is an example of the two types of Stereoisomers; Enantiomers‚ which are stereioisomers which are non-superimposible mirror images‚ much the same as one’s left and right hands are the same
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Variations in Humans Aim: To find the differences in human size from measurement Apparatus: Seven to five friends‚ measuring tape Method: 1. Choose five/seven friends 2. Take height of each person 3. Record data in appropriate manner 4. Process data collected 5. Make evaluation Observation: The males in most case were taller than the females and had a general height of 5 feet 8 inches‚ while the females remained in the area of 5 feet and 1 inch to 5 feet and 2 inches. Theory:
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of sexual orientation have been attempted to be described with biological and environmental theories‚ though none is sufficient to explain the cause. Sexual orientation has been attributed to differences in structure and function of brain‚ specifically in hypothalamus of straight and gay men (LeVay‚ 1991). Though the research doesn’t establish hypothalamus as the cause of sexual orientation‚ it does indicate the presence of biological factor causing the sexual orientation. Several other studies concerning
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seem to be a result of a combination of biological‚ psychological and other individual factors (CAMH‚ 2014). If one feels nervous or fearful about a situation‚ this is normal‚ but if the feelings are ongoing and creates significant distress and causes disruption in daily living (CAMH‚ 2014)‚ then this is considered a disorder. An anxiety disorder‚ like a panic attack‚ can strike without warning and is accompanied by physical symptoms of heart
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Though he promised to work with Congress‚ the President also made clear that he would search for ways to go around them "whenever and wherever I can" if they do not cooperate. The President mentioned the College Opportunity Summit‚ which DSpar attended‚ to work on making college education a reality for all students. The President then received a thumbs up from Speaker Boehner after a reference to his humble beginnings as a barkeep’s son. Boehner sat stone-faced the rest of the night. Obama went
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The Biological Importance of Water In Living Organisms Water is the most important molecule in cells‚ the whole organisms and on earth‚ this is due to it’s unique physical and chemical properties. ” A water molecule‚ because of its shape‚ is a polar molecule. That is‚ it has one side that is positively charged and one side that is negatively charged”(1). A water molecule is made up of two hydrogen atoms and one oxygen atom and the bonds between these atoms are single covalent bonds. Fig 1. The
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increasing of people with autism in this several decades‚ experts were working hard to find out the causes of autism and they believe that the autism is a polygenetic-multifactorial disorder which means that
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(H₂O) is a liquid at room temperature‚ and its unusual properties provide the basis of many biological processes and organisms. In humans water is the vital product of respiration (C₆H₁₂O₆ + 6O₂ = 6CO₂ + 6H₂O.) The importance of water being produced as a product of respiration is that water is a main component of the human body (a human body consists of 65% water)‚ and plays a key role in many biological processes that occur. Water in the body had a large effect on the movement of substances in
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survive. In fact‚ we are mostly made of water. 2.2. Li Lithium does not occur naturally in biological systems and has no biological role‚ but does have effects on the body when ingested. Lithium carbonate is used as a mood stabilizer in psychiatry to treat bipolar disorder (manic-depression) in daily doses of about 0.5 to 2 grams‚ although there are side-effects. Excessive ingestion of lithium causes drowsiness‚ slurred speech and vomiting‚ among other symptoms‚ and poisons the central nervous
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