Which genetically inherited condition results from an inability to produce melanin?
A. Erythema
B. Jaundice
C. Albinism
D. Pallor
E. Addison disease
Answer: C
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Which events occur during the recycling of aged or damaged erythrocytes? (Order is not important.)
a: The heme group is converted into biliverdin. b: Bilirubin is placed in long-term storage in the liver. c: The iron ions in hemoglobin are removed. d: The iron ions are stored in the liver. e: The iron ions are stored in the red bone marrow. f: Membrane proteins and globin proteins are broken down and reused. g: The erythrocyte contents, excluding the globins, are excreted unchanged via the digestive tract. A. a, b, c, e, f B. a, c, d, f C. a, b, c, g D. c, d, g E. c, e, g
Answer the following statements true (T) or false (F)
1. The body would prefer to use proteins for anabolism rather than catabolism. 2. Essential amino acids must be supplied by the diet. 3. Nonessential amino acids must be available for protein anabolism. 4. Vitamins are organic molecules needed in small quantities for normal metabolism. 5. Water-soluble vitamins can be stored in the liver, but fat-soluble vitamins must be included in the diet on a continual basis.
Water moves back and forth across the plasma membrane by the process of ________.
A. osmosis B. active transport C. endocytosis D. facilitated diffusion E. filtration
The functions of the pupillary responses include ________
A) assessing the ability of the eyelid to close B) protecting the eyeball from damage C) protecting the retina from damage by bright light D) testing the integrity of the sympathetic nervous system