Aloe (Aloe vera) is a major and traditional medicinal plant under family of Liliaceae. Aloe consumed externally and internally as well. It is used externally to treat several skin burn conditions‚ sunburn and poison oak‚ infections‚ and eczema. It is confirm that juice from Aloe vera ease pain and decrease inflammation. It has antiseptic and antibiotic properties in treating cuts and abrasions. Aloe juice used to treat people with ulcerative colitis‚ an inflammatory bowel disease. Moreover it acts
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The nucleus is the largest and most prominent organelle‚ occupying about 10% of the total volume of a cell and can have a varying number of nuclei. It could be uni-nucleate – single nucleus; bi-nucleate – two nuclei or even multi-nucleate. The nucleus separates itself from the surrounding cytoplasm by the double membrane around it called the nuclear envelope‚ this helps to regulate the flow of certain substances going in and out of the nucleus. At varying points around the nucleus‚ the two membranes
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Biology: Concepts and Connections‚ 6e (Campbell) Chapter 4 A Tour of the Cell Multiple-Choice Questions 1) Which of the following statements about cells is true? A) All cells have cell walls. B) All cells have internal structures that move. C) All cells are attached to other cells. D) All cells are motile. E) All cells have static organelles. Answer: B Topic: Opening Essay Skill: Factual Recall 2) Light microscopes A) can
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dyes‚ are added to soft and hard drinks‚ and in colouring sweets etc. Sudan-1 yellow and Sudan Red colour is added to chilli powder. Those colours are responsible for making tumours in the liver and bladder and finally cancer. Amylum is the polysaccharide carbohydrate‚ which forms the crystalline form in the liver and creates digestion problem. It is added
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Enzymes are specific about the substrates they can act upon. 2. Which of the following is/are reducing sugars? You correctly answered: e. both glucose and maltose 3. Cellulose and starch are both You correctly answered: e. polymers of glucose and polysaccharides. 4. Proteins and peptides are formed by joining amino acids with a special type of covalent bond called a peptide bond. Which of the following enzymes do you think would be specific for a peptide bond? You correctly answered: c. peptidase 5. The
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groups”? History In the early 1930’s Rebecca Lancefield recognized the importance of serological tests for the identification of organisms. The system is based on specific antibody agglutination reactions with cell wall carbohydrate antigens (C polysaccharides) extracted from the streptococci. Lancefield also showed that further sub division of group A into specific serological types was possible using type-specific M (protein) antigens. The groups are currently recognized from A to O‚ the common groups
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peptidase could not break down the starch by showing that there is positive IKI test for starch and a negative Benedict test for its reduced sugars. What is cellulose? According to your results‚ does salivary amylase digest cellulose? Cellulose is a polysaccharide found in plants to provide rigidity to their cell walls and salivary amylase is not able to digest it because there were no positive signs of the Benedict test which should have been positive if a breakdown did occur. What happened to the cellulose
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slime is soft‚ squishy‚ and fun to play with‚ while maintaining a solid form. There’s different ways to play with it‚ you can stretch it‚ squeeze it‚ bend it‚ and put it back together! Mattel first created slime. It was mostly made of guar gum (polysaccharide) and borax (sodium tetraborate). The non-toxic green slime was made in 1976. Due to the history and past experimentations the experiment of “Fluffy Slime” illustrates the science concept of chemistry. Slime was every child’s favorite toy‚ but
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Cell Structure Vocabulary Cell Membrane → the semipermeable membrane surrounding the cytoplasm of a cell. Cell Wall → a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants‚ fungi‚ and bacteria. In the algae and higher plants‚ it consists mainly of cellulose. Cellular Respiration → A series of metabolic processes that take place within a cell in which biochemical energy is harvested from organic substance (e.g. glucose) and stored as energy carriers
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NAME OF COURSE COURSE CODE CREDIT TOTAL STUDENT LEARNING HOURS PREREQUISITE LEARNING OUTCOME : : : : Organic Chemistry I CHM 3201 4 (3+1) 160 hours per semester : : None At the end of the course‚ students will be able to: 1. Define and explain the basic concepts in organic chemistry such as electronegativity‚ orbital hybridization‚ nomenclature‚ resonance and isomerism‚ as well as organic reactions mechanisms (C4‚ CTPS) 2. to conduct experiments that demonstrate the characteristic reactions
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