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Lipids Review - Image Diversity: triglyceride molecule 4. What are phospholipids? Phospholipids are molecules made up of one molecule of glycerol bound to two long molecules of fatty acids and to one phosphate group. Therefore, phospholipids are...
Found: 24 May 2021 | Rating: 93/100
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What are some examples of steroids with a biological function? Steroids are lipids that consist of an angular combination of four carbon rings, three of which are made of six carbon atoms and one of which, located at the end, made of five carbon...
Found: 24 May 2021 | Rating: 94/100
Saturated molecules are generally solid fats at room temperature. Unsaturated triglyceride molecules are those in which there are double or triple bonds between carbon atoms and, as a result, they are less hydrogenated than the saturated ones. In general, these unsaturated molecules are oils, and are liquid at room temperature. The terms saturated and unsaturated refer to the saturation of the carbonic chain by hydrogen atoms. The Thermal and Energetic Properties of Lipids Why do fats have thermal insulation properties? Triglycerides are poor heat conductors and, in addition, they form thick layers of fatty tissue when accumulated in an organism. That is why they are good thermal insulators.
Found: 20 Apr 2021 | Rating: 91/100
In animals that live in cold climates, such as polar bears, seals and whales, adipose tissue helps the maintenance of internal body temperature. How are lipids used as an energy source by the body? Carbohydrates are the main energy source for aerobic cell respiration. When such substances are absent or deficient, the body can use lipid stores since fats like proteins can be broken down into acetyl-CoA to feed the Krebs cycle a stage of aerobic cellular respiration. Study the next subject: go to Proteins. Click here. All rights reserved.
Found: 6 Apr 2021 | Rating: 87/100
Nutrition Practice Test Questions
Give 2 other names for the word 'glucose'. Dextrose blood sugar Explain glucose It is the form of carbohydrate that the body uses for energy. The glucose is then circulated around the blood stream to the body of cells. It absorbs the fastest in the blood stream What is the function of insulin? Insulinn controls the amount of sugar in the blood Where is glucose found? It is found mainly in ripe fruits, carrot, beetroot, onions, corn syrup, etc. Who usually takes glucose to get a fast source of energy? Because it is found predominantly in ripe fruits, plant juices and honey Where is galactose found? It is found mainly in the milk of mammals, where it forms part of the milk sugar, lactose What are disaccharides made from? These are made from 2 monosaccharide units joined together Give some characteristics of disaccharides. They are soluble in water and are broken down in the body into simple sugars during digestion. Name the three main types of disaccharides.
Found: 5 Apr 2021 | Rating: 91/100
The benefits of using an insulin pump include all of the following except: By continuously providing insulin they eliminate the need for injections of insulin They simplify management of blood sugar and often improve A1C They enable exercise without compensatory carbohydrate consumption They help with weight loss Which of the following regimens offers the best blood glucose control for persons with type 1 diabetes?
Found: 25 Apr 2021 | Rating: 88/100
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A single anti-diabetes drugs A combination of oral anti-diabetic medications Three or four injections per day of different types of insulin. Diabetic neuropathies are diagnosed using all of the following except: Nerve conduction studies or electromyography Ultrasound Minnesota Mutiphasic Personality inventory MMPI Answers and Explanations 1. A Type 1 diabetes is a primary failure of pancreatic beta cells to produce insulin. It primarily affects children and young adults and is unrelated to diet.
Found: 5 Apr 2021 | Rating: 86/100
5 Questions And Answers About Fat
C Type 2 diabetes accounts for the overwhelming majority of cases diagnosed in adults. It develops gradually, beginning with insulin resistance and as the requirement for insulin increases, the pancreas becomes progressively less able to produce it. Women who experience gestational diabetes are at increased risk of developing diabetes during the decade following pregnancy. D Untreated diabetes also may result in loss of lower limbs to amputation and death. D Persons with elevated glucose levels that do not yet meet the criteria for diabetes are considered to have prediabetes and are at increased risk of developing type 2 diabetes.
Found: 14 Apr 2021 | Rating: 92/100
14: Carbohydrates (Structure And Function): Questions
Weight loss and increasing physical activity can help people with prediabetes prevent or postpone the onset of type 2 diabetes. A Diabetics who smoke are at greater risk of developing heart disease because both diabetes and smoking act to narrow blood vessels. Smoking also is associated with increased risk of eye problems and may compromise circulation to the legs. A A1c measures the percentage of hemoglobin that is glycated and determines average blood glucose during the two to three months prior to testing. Used as a diagnostic tool, A1C levels of 6. B Diabetes insipidus is a condition in which the kidneys are unable to conserve water, often because there is insufficient antidiuretic hormone ADH or the kidneys are unable to respond to ADH. Although diabetes mellitus may present with similar symptoms, the disorders are different. Diabetes insipidus does not involve hyperglycemia. C The signs and symptoms that suggest type 1 diabetes include excessive thirst, hunger, urination, weight loss, fatigue, irritability, blurred vision, and infection with candida albicans also known as yeast infections.
Found: 21 Apr 2021 | Rating: 93/100
B Excessively high blood sugar or prolonged hyperglycemia can cause diabetic ketoacidosis, the condition in which the body breaks down fat for energy and ketones spill into the urine. Diabetic hyperosmolar syndrome occurs when blood sugar is excessively high and available insulin is ineffective. In this case, the body cannot use glucose or fat for energy and glucose is excreted in the urine. Without immediate medical attention, both conditions may result in coma or death.
Found: 21 Apr 2021 | Rating: 91/100
D Hyperinsulinemia indicates a difficulty in blood sugar regulation; the pancreas is working to produce enough insulin to regulate blood sugar. Hyperinsulinemia may be cause by a tumor of insulin-producing cells an insulinoma , excessive numbers of insulin producing cells nesidioblastosis , or insulin resistance. A The prevalence of diabetes is increasing dramatically. The CDC reports an increase of more than three million cases in the two years from to C There is no evidence that eliminating all sugar from the diet benefits people with diabetes. It is more important for diabetics to manage and control total carbohydrate intake so that their blood glucose levels remain on target. Controlling blood glucose, blood pressure, and blood lipid levels can aid in the prevention of complications associated with diabetes.
Found: 18 Apr 2021 | Rating: 89/100
Questions For Food And Nutrition Test On Carbohydrates
D Scatter laser treatment is used to shrink abnormal blood vessels in an effort to preserve vision. When there is significant bleeding in the eye, it is removed in a procedure known as vitrectomy. Tonometry is a diagnostic test that measures pressure inside the eye. A fluorescein angiogram is a diagnostic test that traces the flow of dye through the blood vessels in the retina; it is used to detect macular edema. C Biguanides, such as metformin, lower blood glucose by reducing the amount of glucose produced by the liver.
Found: 25 Apr 2021 | Rating: 91/100
Qualitative And Quantitative Tests For Carbohydrates
Sulfonylureas and Meglitinides stimulate the beta cells of the pancreas to produce more insulin. Alpha-glucosidase inhibitors block the breakdown of starches and some sugars, which helps to reduce blood glucose levels D Using an insulin pump has many advantages, including fewer dramatic swings in blood glucose levels, increased flexibility about diet, and improved accuracy of insulin doses and delivery; however, the use of an insulin pump has been associated with weight gain. D Because persons with type 1 diabetes do not produce insulin, they require insulin and cannot be treated with oral anti-diabetic drugs. Several injections of insulin per day, calibrated to respond to measured blood glucose levels, offer the best blood glucose control and may prevent or postpone the retinal, renal, and neurological complications of diabetes. D Nerve conduction studies assess transmission of electrical signals through nerves and electromyography evaluates nerve transmission to muscles.
Found: 23 Apr 2021 | Rating: 85/100
Get Schooled In Counting Carbs For Diabetes
Ultrasound can assess the responsivity and function of internal organs that may be compromised by neurological damage. Foot exams help to assess peripheral neuropathy and to ensure the integrity of skin. The MMPI is a psychological test and is not used to assess diabetic neuropathy. All trademarks are property of their respective owners.
Found: 27 Apr 2021 | Rating: 91/100
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They originate as products of photosynthesis. They are a major source of metabolic energy and are present in most foods. The simplest carbohydrates are monosaccharides, which are simple sugars. Examples of monosaccharides include glucose and fructose. Monosaccharides are building blocks for more complex molecules such as nucleic acids. Simple sugars formed from two monosaccharides via condensation are called disaccharides. Sucrose C12H22O11 , which is table sugar, is a disaccharide. It is a combination of glucose and fructose, and is the most abundant disaccharide. Large chains of monosaccharides are called polysaccharides. Polysaccharides serve for the storage of energy in the form of starch and glycogen.
Found: 9 Apr 2021 | Rating: 93/100
5 Questions And Answers About Carbohydrates
Starches in plants are polysaccharides made of multiple glucose chains. Glycogen is a polysaccharide starch-like substance produced in animals. Cellulose, an abundant biomolecule, is a glucose polymer that is insoluble in water and found in plants and the chitin of arthropods. For the following quiz, review the above summary to assist you in answering the question. Select the best choice from the given answers.
Found: 3 Apr 2021 | Rating: 90/100
There are four different types of fat: Saturated fat Monounsaturated fat Polyunsaturated fat Each type has different physical properties based on its chemical make-up. Saturated and trans fats can have a negative impact on heart health and are usually called "bad" fats, while both types of unsaturated fats can be good for you in moderation and are thus called "good" fats. All types of fat contain the same number of calories per gram. Question 2: What is the Role of Fat in the Body? In general, according to the U. National Library of Medicine , "The fats you eat give your body energy that it needs to work properly. Fat also helps you absorb vitamins A, D, E, and K, the so-called fat-soluble vitamins. Fat also fills your fat cells and insulates your body to help keep you warm. Let's start with the "bad" fats. Saturated fats increase your risk of heart disease, and, according to the Dietary Guidelines for Americans , they should be used in small amounts and replaced by foods higher in monounsaturated and polyunsaturated fatty acids to promote cardiovascular health.
Found: 20 Apr 2021 | Rating: 92/100
300+ TOP CARBOHYDRATES Objective Questions And Answers
MyPlate adds a bit more detail, asserting, "Saturated fats and trans fats tend to raise 'bad' LDL cholesterol levels in the blood. This, in turn increases the risk for heart disease. Plus, some trans fats have been linked to an increased risk of cancer. Now let's move on to the "good" fats. Unsaturated fats both monounsaturated and polyunsaturated can actually help lower your LDL a. Both omega-3 and omega-6 fatty acids are polyunsaturated fats, and your body needs these in order to keep your brain healthy. Omega-3s can also help successfully control triglyceride levels more good news for your heart while omega-6s are key for blood sugar regulation.
Found: 1 Apr 2021 | Rating: 93/100
Quizzes :: Diabetes Education Online
Monounsaturated fats are usually good sources of vitamin E, which is "necessary for healthy vision, a healthy immune system, and other benefits" source. Question 3: What Foods Contain Fat? The primary sources of saturated fat in an American eating pattern are cheese, pizza, desserts, chicken, and processed red meat like sausage and ribs. The bulk of our trans fatty acid intake comes from processed foods filled with the partially-hydrogenated oils used in some margarines, snack foods, and prepared desserts. Monounsaturated and polyunsaturated fats are usually liquid at room temperature and are found in seafood, nuts, seeds, avocados, olives, and liquid oils. Oils high in monounsaturated fatty acids include canola, olive, peanut, sesame, and safflower oils.
Found: 3 Apr 2021 | Rating: 90/100
Carbohydrates Multiple Choice Questions(MCQs) & Answers | Carbohydrates Quiz
Other foods that contain these healthful fats include avocado and most nuts. Oils that are good sources of polyunsaturated fatty acids include soybean, corn, and cottonseed oils. Other foods that are rich in these polyunsaturated fats include flaxseeds, along with salmon, tuna, and other fish. Just like with carbohydrates , it's not wise to cut an entire macronutrient from your diet. Fat still plays a key role in your body and its functions. The key is to simply not eat too much of it. When you do choose fats, seek out unsaturated options instead of saturated or trans fats. Choosing healthful types of fat instead of unhealthful types of fat helps protect your heart and cardiovascular system, provide antioxidants to combat the effects of aging, and support healthy neurotransmitters in your brain. Consider replacing foods that are high in saturated fat — like butter, cream, and coconut oil — with foods that are high in polyunsaturated fat and monounsaturated fat — like olive oil, nuts, and seeds.
Found: 19 Apr 2021 | Rating: 86/100
7 Q&As To Study The Properties Of Carbohydrates
Also, reduce sources of saturated and trans fats in general. Do the same with cheese, yogurt, and milk-based puddings. It's also possible to lighten up the cuts of meat you purchase, choosing chicken breasts over thighs, lean beef over fattier cuts, etc. At the same time, increase sources of unsaturated fats. Add ground flaxseed to your oatmeal and then top it with walnuts, or add a slice or two of avocado to your tuna sandwich.
Found: 19 Apr 2021 | Rating: 91/100
Monosaccharides And Carbohydrates - Biochemistry
Answers and Explanations 1. A In addition to the above-mentioned foods, legumes including broad beans, pinto beans, and soybeans are good sources of antioxidant vitamins and a variety of phytonutrients that often act as antioxidants, protecting the cells of the body from the damaging effect of free radicals. Some of the best sources of antioxidants are berries, ginger, pomegranate, sunflower seeds, and walnuts. It is not because coffee is especially high in antioxidants, but because Americans drink so much of it. Their morning coffee gives Americans nearly 1, mg daily of antioxidants in the form of polyphenols. C Although essential fatty acids are required for human metabolism, the body does not produce linoleic acid LA or? Also known as polyunsaturated fatty acids PUFAs , omega-3 and omega-6 fatty acids play vital roles in brain function as well as normal growth and development.
Found: 25 Apr 2021 | Rating: 92/100
Carbohydrates | Organic Chemistry Quiz - Quizizz
B In addition to the above-mentioned facts, omega-3 fatty acids are necessary for the structure of cell membranes, especially in the brain and retina. The cardioprotective effects of omega-3 fatty acids relate to improvements in blood pressure, cardiac function, and arterial and vascular function as well as improved lipid metabolism, antiplatelet, and anti-inflammatory effects. D Scurvy is caused by insufficient consumption of vitamin C. Although it is rare, older adults, persons who abuse alcohol, and those who eat a diet that does not contain fresh fruit and vegetables may be at risk of developing scurvy. Along with the above-mentioned symptoms, persons with scurvy may suffer bleeding gums, petechial hemorrhage of the skin and mucous membranes, bleeding in the eye, hyperkeratosis, and sicca syndrome.
Found: 5 Apr 2021 | Rating: 86/100
Carbohydrate Metabolism Questions
D Coenzyme Q10 CoQ10 is a fat-soluble quinone, a vitamin-like compound that is vital for activities related to energy metabolism. CoQ10 is the coenzyme for at least three mitochondrial enzymes as well as enzymes in other parts of the cell and is involved in the key biochemical reactions that produce energy in cells. It also is a free radical scavenger and is metabolized to ubiquinol, which prolongs the antioxidant effect of vitamin E. The highest amounts of it are found in the mitochondria of cells of organs with high-energy requirements such as the heart muscle, liver, kidneys, and pancreas. A Humans obtain vitamin D from two natural sources: sunlight and consumed food. Solar UVB radiation penetrates the skin and converts 7-dehydrocholesterol to previtamin D3, which is rapidly converted to vitamin D3. Along with the above-mentioned foods, cod liver oil is a potent source of vitamin D and some orange juice, soy, and rice beverages are fortified with vitamin D.
Found: 5 Apr 2021 | Rating: 90/100
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A Vitamin K1 is a cofactor needed for the synthesis of some of the substances that help blood to clot. In adults, low dietary intake of vitamin K may be the result of chronic illness, malnutrition, alcoholism, multiple abdominal surgeries, long-term parenteral nutrition, malabsorption, gallbladder disease, liver disease, cystic fibrosis, inflammatory bowel disease, and long-term use of drugs such as antibiotics and cholestyramine, which binds to bile acids, preventing fat-soluble vitamin absorption.
Found: 2 Apr 2021 | Rating: 85/100
Organic Chemistry Carbohydrates
B Probiotics protect against harmful bacteria in the following ways: by penetrating and binding to the surfaces of harmful organisms; by stimulating the lining of the digestive tract to prevent penetration by pathogens; and by modifying immunoregulation. Probiotics have been shown to relieve temporary abdominal bloating and to reduce intestinal gas. C Prebiotics are primarily oligosaccharides-short chains of sugar molecules that can only partially be digested. Most naturally occurring oligosaccharides are found in plants. Prebiotics are often called bifidogenic factors because they primarily stimulate growth of bifidobacteria. Prebiotics work in concert with probiotics and have been found to produce many of the same health benefits. B Beri-beri is rarely seen in the United States because many foods are fortified with thiamine. Persons at risk of developing beri-beri include those who abuse alcohol, persons on dialysis, and those taking high doses of diuretics as well as infants breastfed by mothers who lack sufficient thiamine.
Found: 3 Apr 2021 | Rating: 92/100
Multiple Choice Quiz On Carbohydrates | Biology Multiple Choice Quizzes
D Trigeminal neuralgia is characterized by sudden onset of severe pain that lasts less than a minute. It presents most commonly in persons age 50 and older and among women. The frequency and severity of attacks recurs and remits, progressively worsening over time. While the disorder may be debilitating, it is not life threatening. A Tourette Syndrome is characterized by tics — repetitive, involuntary behaviors, vocalizations and movements such as eye blinking, grimacing and shrugging, or jerky muscle movements. Tics also may include self-harm such as repetitively punching oneself as well as coprolalia and echolalia. Persons with Tourette syndrome frequently suffer behavioral problems such as hyperactivity, impulsivity, attention disorders, and repetitive behaviors. B The USDA Dietary Guidelines suggest that most dietary fats should be obtained from sources of polyunsaturated and monounsaturated fatty acids, such as fish, nuts, and vegetable oils.
Found: 10 Apr 2021 | Rating: 87/100
C In addition to the above-mentioned actions, vitamin B3, also known as niacin or nicotinic acid, is a water-soluble vitamin that is necessary for cell respiration and supports the circulation, skin, nervous system, and secretion of bile. Insufficient niacin intake is associated with symptoms such as canker sores, depression, fatigue, indigestion, weakness, skin problems, and inflammation. Chronic niacin deficiency is called pellagra. Excessive sodium consumption is associated with increased risk for hypertension, which is associated with increased risk of developing cardiovascular disease. C Long-term inadequate intake of calcium is associated with low bone mass, rapid bone loss, and high risk of fracture. In addition to the above-mentioned risk factors, chronic use of glucocorticoids, some anticonvulsants, inactivity, smoking, and changes in sex hormones such as amenorrhea, menopause, and low testosterone may increase the risk for osteoporosis.
Found: 20 Apr 2021 | Rating: 93/100
17 Carbohydrate Quizzes Online, Trivia, Questions & Answers - ProProfs Quizzes
D Low carbohydrate diets promote ketosis, the process of breaking down fat as opposed to carbohydrate to generate energy. Ketones are acidic chemicals, which can build up in the blood and urine. Diet-induced ketosis may be intentional as a treatment for some people with epilepsy, however, for some people, long-term adherence to a very low carbohydrate diet may produce damage to the liver and kidneys. Successful dieters maintain their motivation by celebrating the achievement of weight-loss milestones D In addition to the above-mentioned populations, supplemental iron may be given to treat anemia that occurs during pregnancy or as a result of heavy menstrual periods, kidney disease, or chemotherapy.
Found: 27 Apr 2021 | Rating: 92/100
Carbohydrates MCQ Answers & Explanations | Easy Biology Class
Supplemental iron also may be recommended for vegetarians and women who are lactating. Iron requirements decrease for post-menopausal women. All trademarks are property of their respective owners.
Found: 6 Apr 2021 | Rating: 90/100
Carbohydrates | Biology | Quiz | Visionlearning
Majority of carbohydrates follow this general formula 2. Glyceraldehyde 4. A keto pentose will have a total of five carbons, among which two carbons will be chiral. Chiral carbon: An asymmetric carbon, i. Starch Laminarin: reserve food material of brown algae Chrysolaminarin: reserve food material of diatoms Floridian starch: reserve food material of red algae 7. Dihydroxyacetone All carbohydrates except dihydroxyacetone a keto triose will have at least one chiral centre. Erythrose Erythrose is an aldo tetrose Arabinose, Xylose and Lyxose are aldo pentoses 9. Lyxose Ans d. Both a and b Epimer: Two isomers that differs only in the configuration around a carbon atom. Glyceraldehyde Glyceraldehyde is an aldose sugar Xylulose, Dihydroxyacetone and Ribulose are ketose sugars Sucrose Seliwanoff test is used to distinguish aldoses and ketoses. Ketoses give positive test for Seliwanoff test. Sucrose gives Seliwanoff test positive since it contains a fructose moiety which is a ketose sugar.
Found: 22 Apr 2021 | Rating: 87/100
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