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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. 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






2. The enzyme released from the blood platelets in vertebrates during clotting






3. A fatty sheath surrounding the axon of a neuron that aids in stimulus transmission; it is secreted by the Schwann cells






4. Fluid in the eye - found between the cornea and the lens






5. The more muscular chamber(s) of the heart that pump blood to the lungs and to the rest of the body






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






7. A cell that divides to form two secondary spermatocytes






8. A vacuole in the cytoplasm in which digestion takes place (in protozoans)






9. The exchange of parts of homologous chromosomes during meiosis






10. A category of taxonomic classification that is ranked above class and under kingdoms






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






12. An abbreviation of nicotinamide-adenine-dinucleotide-phosphate - also called TPN; an organic compound that serves as an oxidation-reduction molecule






13. An organism that does not require free oxygen in order to respire






14. An organic nutrient required by organisms in small amounts to aid in proper metabolic processes






15. A compact linear organization of nerve tissues with ganglia in the CNS






16. The pairing of homologous chromosomes during meiosis






17. Anaerobic respiration the yields 2 molecules of ATP - lactic acid - ethyl alcohol and carbon dioxide or some similar compound via the glycolytic pathway






18. The contraction of the atria or ventricles of the heart






19. An embryonic structure that gives rise to the central nervous system






20. A plant that lives on another plant mensalistically






21. The diffusion of water through a semipermeable membrane - from an area of greater concentration to an area of lesser concentration






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






23. A kingdom of unicellular living organisms that are neither animals nor plants; includes some groups of algae - slime molds and protozoa






24. The outer - transparent layer of the eye






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






26. An organism that obtains its nutrients from dead organisms






27. A gland composed of two parts - anterior and posterior - each with its own secretions; called the "master gland" because its hormones stimulate secretions by other glands






28. A transmitter substance released from the axons of nerve cells at the synapse






29. The part of the body of an animal that is between the neck or head and the abdomen






30. The sac in the ovary in which the egg develops






31. The sensory branch of each spinal nerve






32. The removal of hydrogen or electrons from a compound or addition of oxygen; half of a redox (oxidation or reduction) process






33. A foreign protein that stimulates the production of antibodies when introduced into the body of an organism






34. The microspore of a seed plant






35. The transfer of pollen from the stamen to the pistil of the same flower






36. A stomach enzyme that partially digests proteins






37. A hoofed animal






38. Nonfunctional haploid cells created during meiosis in females; they have very little cytoplasm-most has gone into the functional egg cell






39. The thigh bone of vertebrates






40. A tube connecting the ovaries and the uterus






41. A simple sugar






42. In plants - an area of undifferentiated tissue covered by embryonic leaves






43. Any organism that is the victim of a parasite






44. A marine biome typical of the open seas






45. An organism that possesses both the male and the female reproductive organs






46. The reproductive organ that produces sex cells






47. An individual that is heterozygous for only one trait






48. An emulsifying agent secreted by the liver






49. An ion with a positive charge - or an ion that migrates towards the cathode (negative electrode) in an electric field






50. A lymph tubule located in the villus that absorbs fatty acids