divided into two groups‚ unsaturated and saturated fat. The only difference between saturated and unsaturated fat in structure is unsaturated fat has a double bond but saturated fat do not. Although some of the lipids can be made by biosynthetic pathway‚
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| | The most important source of nitrogen entering the body is from: | | | Student Response | Value | Correct Answer | Feedback | A. | nucleic acids. | | | | B. | amino acids contained in dietary protein. | 100% | | | C. | urea. | | | | D. | ammonia. | | | | | Score: | 0.1/0.1 | | | 2. | Quest#2 | | Ammonia is converted to urea in the: | | | Student Response | Value | Correct Answer | Feedback | A. | heart. | | | | B. | brain
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1…………….ROLE OF MOLECULAR BIOLOGY IN THE 21ST CENTURY THE STATEMENT: Molecular biology of the 21st century‚ which says that the science devoted to elucidating the structure and function of genomes. On the other hand‚ the major advances gave rise to central dogma of molecular biology‚ comprising the three major processes in the cellular utilization of genetic information. The first is replication‚ the copying of parental DNA to form daughter DNA molecules with identical nucleotide sequences. The second
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CHAPTER 1 INTRODUCTION: THEMES IN THE STUDY OF LIFE OUTLINE I. Life’s Hierarchical Order A. The living world is a hierarchy‚ with each level of biological structure building on the level below it B. Each level of biological structure has emergent properties C. Cells are an organism’s basic units of structure and function D. The continuity of life is based on heritable information in the form of DNA E. Structure and function are correlated at all levels of biological organization F. Organisms are
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------------------------------------------------- Carbohydrates Separated into 3 types which are monosaccharides‚ disaccharides and polysaccharides Monosaccharides * they are three main types of monosaccharides which you have to know in this level which are Pentoses - Such as ribose (with formula C5H10O5) and fructose Hexose - Such as alpha and beta glucoses * All members of monosaccharides are reducing since they have the aldehyde groups‚ therefore they will cause a brick red precipitate to form when tested
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DNA is a type of nucleic acid‚ a macromolecule found within a cell. DNA itself consists of two strands of nucleic acid in a double helix structure. Each of these strands consists of nucleotides‚ which in turn are made up of a pentose sugar‚ a nitrogenous base‚ and a phosphate group. The “code” of DNA is contained within the nitrogenous bases. The nitrogenous bases are Adenine‚ Guanine‚ Cytosine‚ and Thymine‚ which are shorted to A‚ G‚ C‚ and T. These bases are paired within the structure‚ with A pairing
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In biology‚ there are four major biological macromolecules that are found in the cell‚ carbohydrates‚ lipids‚ nucleic acid‚ and proteins. Biological macromolecules are also known as organic molecules. Biological macromolecules are very large molecules that are of a key importance to living organisms. Most biological macromolecules are built by joining smaller molecule subunits. Carbohydrates are large groups of organic compounds found in foods such as sugars‚ starches‚ glucose‚ fructose‚ galactose
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Macromolecular Composition of the Liver Cell Formal Report Aims The aim of the experiment was to test for the presence of DNA‚ RNA‚ protein and glycogen in the cytoplasm and the nucleus of bovine liver cells. From the findings of the results the distribution of these macromolecules can be shown within the liver cell. This was carried out by undertaking qualitative experiments‚ where the observation of a colour change was noted and a quantitative experiment‚ where numerical data was recorded from
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chemical reactions and pathways that enable for them to maintain life. These pathways are part of metabolism‚ involving catabolism (break down of organic nutrients for extraction of useful) and anabolism (energy dependent conversion of small precursor molecules in complex molecules); some of which are energy coupled to provide energy efficiency. This intermediate coupling is due to the “energy currency” within the body‚ known as Adenosine Triphosphate (ATP). These metabolic pathways are reliant on certain
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elements that are held together by chemical bonds. All organic compounds in living organisms are composed primarily of CARBON‚ HYDROGEN‚ and OXYGEN( + sometimes NITROGEN) This makes up 96% of the weight of living organisms 4% made out of calcium‚ phosphate‚ sulfer‚ Mg‚ Na‚ etc (occur as ions or in inorganic compounds within living organisms) Rest of the elements required are founds in such small amounts (0.5-------->1.7----------> 3.2 0- exactly zero is purely covalent 0-0.5: covalent 0.5-1.7:
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