40 Matching questions

1. xerosis
2. preformed vitamin A
3. rhodopsin
4. osteomalacia
5. opsin
6. teratogenic
7. erythrocyte hemolysis
8. mucous membranes
9. hemolytic anemia
10. fibrocystic breast disease
11. beta-carotene
12. keratinization
13. epithelial tissue
14. cell differentiation
15. retina
16. chlorophyll
17. keratin
18. rickets
19. hemorrhagic disease
20. retinoids
21. vitamin A
22. alpha-tocopherol
23. epithelial cells
24. cornea
25. vitamin A activity
26. retinol activity equivalents
27. xanthophylls
28. carotenoids
29. hemophilia
30. night blindness
31. sterile
32. retinol-binding protein
33. tocopherol
34. muscular dystrophy
35. pigment
36. xerophthalmia
37. keratomalacia
38. remodeling
39. intermittent claudication
40. acne

1. a the specific protein responsible for transporting retinol
2. b the vitamin D deficiency disease in children characterized by inadequate mineralization of bone (manifested in bowed legs or knock-knees, outward-bowed chest and knobs on knees)
3. c a molecule capable of absorbing certain wavelengths of light so that it reflects only those that we perceive as a certain color
4. d a water-insoluble protein; the normal protein of hair and nails
5. e Slow recovery of vision after exposure to flashes of bright light at night; an early symptom of vitamin A deficiency.
6. f a hereditary disease in which the blood is unable to clot because it lacks the ability to synthesize certain clotting factors
7. g a chronic inflammation of the skin's follicles and oil producing glands, which leads to an accumulation of oils inside the ducts that surround hairs; usually associated with the maturation of young adults
8. h the green pigment of plants, which absorbs light and transfers the energy to other molecules, thereby initiating photosynthesis
9. i pigments found in plants; responsible for the color changes seen in autumn leaves
10. j the membranes, composed of mucous-secreting cells, that line the surfaces of body tissues
11. k dietary vitamin A in its active form
12. l the dismantling and re-formation of a structure, in this case, bone
13. m abnormal drying of the skin and mucous membranes; a sign of vitamin A deficiency
14. n causing abnormal fetal development and birth defects
15. o a disease characterized by excessive bleeding
16. p a term referring to both the active forms of vitamin A and the precursor forms in foods without distinguishing between them
17. q softening of the cornea that leads to irreversible blindness; seen in severe vitamin A deficiency
18. r accumulation of keratin in a tissue; a sign of vitamin A deficiency
19. s pigments commonly found in plants and animals, some of which have vitamin A activity
20. t chemically related compounds with biological activity similar to that of retinol; metabolites of retinol
21. u the layer of light-sensitive nerve cells lining the back of the inside of the eye; consists of rods and cones
22. v the process by which immature cells develop specific functions different from those of the original that are characteristic of their mature cell type
23. w severe calf pain caused by inadequate blood supply; it occurs when walking and subsides during rest.
24. x a bone disease characterized by softening of the bones; symptoms include bending of the spine and bowing of the legs; occurs most often in adult women.
25. y progressive blindness caused by severe vitamin A deficiency
26. z the condition of having too few red blood cells as a result of erythrocyte hemolysis
27. aa the protein portion of the visual pigment molecule.
28. ab an orange vegetable pigment that the body can change into the active form of vitamin a, one of the antioxidant nutrients
29. ac the layer of the body that serves as a selective barrier between the body's interior and the environment
30. ad the active vitamin E compound
31. ae a hereditary disease in which the muscles gradually weaken; its most debilitating effects arise in the lungs
32. af cells on the surface of the skin and mucous membranes
33. ag all naturally occurring compounds with the biological activity of retinol
34. ah a general term for several chemically related compounds, one of which has vitamin E activity
35. ai a measure of vitamin A activity; the amount of retinol that the body will derive from a food containing preformed retinol or its precursor beta-carotene
36. aj the breaking open of red blood cells; a symptom of vitamin E-deficiency disease in human beings
37. ak free of microorganisms, such as bacteria
38. al a light-sensitive pigment of the retina; contains the retinal form of vitamin A and the protein opsin
39. am the transparent membrane covering the outside of the eye
40. an a harmless condition in which the breasts develop lumps, sometimes associated with caffeine consumption. In some, it responds to abstinence from caffeine; in others, it can be treated with vitamin E