Questions and Answers
What is the primary method of heat loss in humans when the skin temperature is higher than the environment?
Which amino acid is considered the 21st amino acid?
What is the substitution in the beta-chain of hemoglobin that leads to sickle cell disease?
Which type of collagen fiber is defective in the condition characterized by bilateral hearing loss and lens opacification?
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What is the primary transporter involved in insulin-stimulated glucose uptake?
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What is the acceptable macronutrient distribution range (AMDR) of simple sugars?
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Study Notes
Heat Loss in Humans
- When skin temperature is greater than the environment temperature, radiation is the major mode of heat loss.
Amino Acids
- Selenocysteine is determined as the 21st amino acid.
Sickle Cell Disease
- Sickle cell disease results from a missense mutation in both genes encoding for the beta-chain, resulting in a change from Glutamate to Valine.
Collagen Fiber Defects
- Defects in Type IV collagen fiber are associated with a condition causing gross hematuria, elevated blood pressure, and decreased urine output, accompanied by bilateral hearing loss and opacification of the lenses.
Glucose Uptake
- Insulin-stimulated glucose uptake involves the GLUT4 transporter.
Macronutrient Distribution
- The acceptable macronutrient distribution range (AMDR) of simple sugars is not specified, but the exact range is an important concept in nutrition.
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Description
This quiz covers various topics in human physiology and diseases, including heat loss, amino acids, sickle cell disease, and collagen fiber defects.
