Summary: (Hbm2103) Digestion, Nutrition And Metabolism
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4 Proteins
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Marasums is an form of protein energy malnutrition. What are 3 unique characterists of marasums
- 6 - 18 months of age
- hair and skin problems
- Severe weight loss and muscle wasting
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Kwashiorkor is a form of protein energy malnutrition characterised by what 2 things?
18 months to 2 years
swelling (edema) -
6 Vitamins
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What are the functions of Vitamin A family members retinol and retinoic acid?
Retinoic acids contributes togene expression, development andgrowth .- Starts cellular differentiation by triggers receptors on DNA for differentiation for fetus and epithelial cells
retinol required forreproduction
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Of the 2 classes of Vitamin A: retinoids and carotinoids which is better greater absorbed?
90% of retinoids and ~3% of carotenoids -
Of the B vitmains which 5 are involved in energy metabolism?
- B1
- B2
- B3
- B5
- B7
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Which 3 locations would you find large amounts of fat soluable vitamins?
- Brain
- Adipose tissue
- Liver
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Which 2 locations would you find large amounts of water soluable vitamins?
- Blood
- Lymphatic
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What is a key difference between water soluable and fat soluable vitamins in relation to toxicity?
Water soluable vitamins is readily lost through urination becuase they are water soluable and located in the blood and lymph. Fat soluable vitamins are a branch of lipids and stored like lipids therefore the endless storage applies to them which can cause toxicity due to accumulation -
What 3 simularites do fat soluble vitamins and lipids have in common?
Fat soluable vitamins are a class of lipids therefore they are digested and absporbed, transported and stored like lipids -
Are vitmians required in large amounts or small amounts?
Vitamins are required in small amounts. Especially fat soluable vitamins becuase there is an increased risk of toxication because of accumulation of fat soluable vitamins.
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