11. Sr……………………………………………………………………….4 2.12. Ba………………………………………………………………………5 2.13. Ra………………………………………………………………………5 1. Group IA 2.1. H Hydrogen binds with Oxygen to form water. Without water‚ we can not 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
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The Biological Importance of Water for Living Organisms Water is made up of two elements‚ 2 positively charged hydrogen molecules and one negatively charged oxygen molecule. Water molecules have uneven charge distribution as one end of the molecule is slightly positive and the other slightly negative‚ this is called polar. Ionic substances such as sodium chloride dissolve easily in water because the positively and negatively charged ions are separated due to the dipole nature of water. As water
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We began our research by treating chalcone 1a (??) with acetylacetone 2a (??) in the presence of morpholine as the base (??) in CH3CN at 80 ºC for 12 h. The reaction was monitored by TLC until the disappearance of the starting material and the formation of 1-(5-benzoyl-2-methyl-4-phenyl-2‚3-dihydrofuran-3-yl)ethanone 3a. this reaction mixture‚ containing the 2‚3-dihydrofuran 3a generated in situ‚ was treated with sulfur element (??) in the presence of base of morpholine (??) at 80°C and the desired
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The Biological Importance of Water. Water is a material that is essential for all life on earth. The fact that water makes up between 60 and 95 percent of all living organisms clearly shows the biological importance of this compound. The way that water is structured and its properties lead to it being one of the most individual and vital compounds on earth. Water molecules are dipolar‚ meaning they have a positively charged and a negatively charged region. A water molecule consists of two hydrogen
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The Biological Importance of Water Water is perhaps the most important molecule for the survival and life of organisms. On the surface of the planet there is obviously much more area of water than land‚ which shows its significance. The fact that water makes up 60-95% of all living organisms shows the incredible biological importance of water. Water has many uses and roles‚ one of them it being used as a support unit in plants. The uptake of water by plant cells creates a pressure against the rigid
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The Biological Importance of Water! The ultimate importance of water is none other than the fact that life cannot exist without it. Water being the major component of our body cells‚ typically making 70-95% of it‚ constructs the body mass with approximately 80% being water. Humans are not the only ones who contain the valued material but other creatures like the jellyfish hold 96% of water as their body mass. The structure of the water molecules enables it to have extreme properties that are
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The Biological Importance of Lipids Lipids are organic compounds found in all types of plant and animal cells. They always contain carbon‚ hydrogen and oxygen‚ however the relative amount of oxygen is less than the amount of carbohydrates in lipids. Lipids are polymers and the long chains of repeating units are joined together in a condensation reaction where water is also produced. The most common types of lipids are triglycerides‚ phospholipids and waxes. Triglycerides are formed by three fatty
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The Biological Importance Of Water Water plays a huge role in our lives‚ the molecule which is comprised of two atoms of hydrogen and one atom of oxygen bonded together has many complex properties. The molecule maintains a bent shape due to its tetrahedral arrangement and the negative lone pair of electrons on the oxygen. The electrons from both hydrogen and oxygen are joined covalently but the difference in electronegativity lets the electrons from hydrogen get pulled slightly toward the oxygen
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IMPORTANCE OF GROUPS Groups are important due to the following reasons: 1. The group is a transmitter of culture. 2. The group is a means of social control. 3. The group socializes the individual. 4. The group is the source of fundamental ideas. 5. The group trains the individual in communications. CLASSIFICATION OF GROUPS According to Social Boundaries and Adherence to a Special Set of Norms Some sociologists do not consider these kinds of organization per se as mentioned
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1a) Ally enter into a contract to supply tiles to Kiki which approximately about RM500‚000. However‚ she failed to do so and Kiki wanted to take action against her. In which court shall Kiki apply to and state the reason Based on Section 65 of the Subordinate Courts Act 1948 [Act 92] provides the Sessions Court: jurisdiction to try all actions and suits of a civil nature for the specific performance or rescission of contracts or for cancellation or rectification of instruments‚ so kiki must apply
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