biochemistry - 1. A) B) C) D) 2. The above structure is a:...

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1. The above structure is a: A) sphingolipid B) phospholipid C) steroid D) cholesterol 2. List two reasons why fatty acids store more energy per gram of fatty acid: molecules: 3. ____________ can cross cell membranes easily; while _______________ cannot easily cross cell membranes. 4. The human body uses vitamin A for: A) detection of light B) regulating the transport of triacylglycerols C) regulation of gene transcription D) A and B only E) B and C only The form of vitamin D that the body uses is ___________, which is also important for the body as a _______________. A) calcitriol; transcription factor B) calcitonin; immunoassay C) ergocalciferol; absorption of proteins D) cholecalciferol; phosphorylation of proteins Humans have migrated from Africa to other parts of the world. As humans move to Asia and Northern Europe, production of melanin decreases due to a mutation. Why does melanin production decrease? A) To allow the body to make more vitamin D with less sunlight B) To allow the body to decrease use of limited energy C) To allow the body to protect itself from UV damage D) A and B only E) All of the above Name the following molecule:
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biochemistry - 1. A) B) C) D) 2. The above structure is a:...

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