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SAT Subject Test: Biology

Subjects : sat, science, biology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The junction or gap between the axon terminal of one neuron and the dendrites of another neuron






2. A thyroid deficiency that results in stunted growth and feeblemindedness






3. The innermost tissue layer of the eyeball that contains light-sensitive receptor cells






4. One of the two strands that constitute a chromosome; chromatids are held together by the centromere






5. Functional urinary tubules responsible for excretion in the kidney of vertebrates






6. The portion of alimentary canal connecting the pharynx and the stomach






7. A dense fluid within the chloroplast in which CO2 is converted into sugars in photosynthesis






8. The portion of a DNA molecule that serves as a unit of heredity; found on the chromosome






9. Secreted by the anterior pituitary gland - this hormone stimulates the conversion of a follicle into the corpus luteum and the secretion of progesterone by the corpus luteum






10. An organ that stores urine temporarily before it is excreted






11. The study of the evolutionary descent and interrelations of groups of organisms






12. In taxonomy - a classification between species and family






13. A wall composed of cellulose that is external to the cell membrane in plants; it is primarily involved in support and in the maintenance of proper internal pressure






14. The fluid that remains after fibrinogen is removed from the blood plasma of vertebrates






15. The womb in which the fetus develops






16. Cells which in the female are located between the ovarian follicles and in the male are located between the seminiferous tubules of the testes






17. A network - particularly of nerve or blood vessels






18. A type of virus that can destroy bacteria by infecting - parasitizing and eventually killing them






19. Degree of penetrability - as in membranes that allow given substances to pass through; the ability to penetrate






20. The orientation of cells or organisms in relation to chemical stimuli; the growth or movement response of organisms to chemical stimuli






21. A dominant allele suppresses the expression of the other member of an allele pair when both members are present






22. The conversion of digested foods and other materials into forms usable by the body (i.e. - the conversion of amino acids into proteins)






23. Plant growth stimulated by light (stem: + - towards light; root: - - away from light)






24. A progressive change from which a permanently more mature or advanced state results






25. A nerve fiber






26. The innermost embryonic germ layer that gives rise to the lining of the alimentary canal and to the digestive and respiratory organs






27. Blood protein that is transformed to fibrin upon clotting






28. A stomach enzyme that partially digests proteins






29. The veins that carry blood from the digestive organs to the liver






30. An air sac in the lung; the site of respiratory exchange - involving diffusion of oxygen and carbon dioxide between the air in the alveolus and the blood in the capillaries






31. The outermost surface of an organism






32. A terrestrial habitat zone that is characterized by large tracts of coniferous forests - long and cold winters - and short summers






33. A tube one cell thick that carries blood from artery to vein; the site of material exchange between the blood and tissues of the body






34. A blood vessel that carries blood back to the heart from the capillaries






35. An organelle that regulates cell functions and contains the genetic material of the cell






36. The female gamete; it is nonmotile - large in comparison to male gametes - and stores nutrients






37. The male gonads that produce sperm and male hormones






38. An enlargement of the thyroid gland due to lack of iodine






39. One-thousandth of a millimeter; a unit of microscopic length






40. The small granular body within the centrosome to which the spindle fibers attach






41. A unit of heat; the amount of heat required to raise the temperature of one gram of water by one degree centigrade






42. The class of free-living flatworms






43. Living - as in living organisms in the environment






44. The part of the hindbrain located in the brain stem






45. A neuron that picks up impulses from receptors and transmits them to the spinal cord






46. Blood vessels located between ascending and descending aortas that deliver blood to most of the upper body






47. Movement of amoeba






48. Laws of classical genetics established through Mendel's experiments with peas






49. The transfer of pollen to the micropyle or to a receptive surface that is associated with an ovule (such as stigma)






50. A dark-staining small body within the nucleus; composed of RNA