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14 Cards in this Set
- Front
- Back
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What is bioavailability? |
The amount of the nutrient absorbed in the gut and used in the body |
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What are vitamines? |
Amines we cant synthesize that are individual, organic molecules. They dont provide energy when broken down. |
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What are the fat soluble vitamins and their features? |
A, D, E and K They are associated with lipids and fats and dont need to be eaten daily |
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What are the water soluble vitamins and their feature? |
C and B They need to be taken daily |
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What are the B-viatmins we need to remember (GLM)? |
Thiamine, riboflavin, niacin, pantothenic acid and pyridoxine (the first 6) |
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What roles do vitamins play in the body (3)? |
-Co enzymes (carriers) and co factors (participants and stabilizers) -Metabolic roles -DNA/RNA synthesis |
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What are the 4 ways to assess vitamin deficiency? |
-Clinical examination (Look for symptoms) -Apthropometry (Energy balance and BMI) -Biomedical tests (Bloods) -Dietary assessment (Measure what you eat, convert into nutrients and compare with Nutrient Reference Values |
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What are the consequences of Thiamine defficency? |
It a part of co-enzyme TPP so there would be: -A build up of Lactate and Pyruvate -Venous pooling and heart failure from oedema (Beriberi) -Cerebral Beriberi and psychosis(Wernicke-Korsakoff) |
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What are the characteristics of minerals? |
Essential, non-organic, dont provide energy and may show symptoms. |
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What are the roles of minerals in the body (7)? |
-Co-factors -Structural roles -Key constituents of molecules -Electron transfer -Nerve impulses and muscle contractions -Fluid and electrolyte balance |
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What does magnesium do? |
-Bone and teeth -Muscle contraction -Nerve |
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What is the biological basis behind studying magnesium deficiency? Did the results support this? |
Magnesium has a role in muscle contraction so by taking magnesium you can relieve muscle cramps or if you have muscle cramps magnesium can relieve them. Some results did whilst others did not |
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What are the effects of selenium deficiency in humans and animals? |
-White muscle disease in animals which is patches of white muscle and an arched back -Keshan's disease in humans which results in cardiomyopathy |
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What was the biological basis behind the study of Selenium and prostate cancer? Did the results correlate with this? |
Selenium is an antioxidant and helps the glutathione peroxidase which prevents the formation of free radicals which have been shown to cause cancer. Results did not support this (if anything it seemed to increase the chance) |
