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






2. The process by which water and dissolved substances pass through a membrane






3. A flexible - supportive rod running longitudinally through the dorsum ventral to the nerve cord; found in lower chordates and in the embryos of vertebrates






4. A group of populations that can interbreed






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






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






7. The production of a number of different species from a single ancestral species






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






9. An organism that utilizes the energy of inorganic materials such as water and carbon dioxide or the sun to manufacture organic materials






10. The vascular tissue of a plant that transports organic materials (photosynthetic products) from the leaves to other parts of the plant






11. A hormone that ripens fruit and induces aging






12. A motile - multinucleate mass of protoplasm resulting from fusion of uninuclear amoeboid cells






13. A tract of nerve fibers connecting the two cerebral hemispheres






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






15. The cavity between the lungs and the wall of the chest






16. The law by which genes on different chromosomes are inherited independently of each other






17. A response by an organism to the duration and timing of light and dark conditions






18. Organelles that serve as specialized containers for metabolic reactions






19. An organ that is not functional in an organism - but was functional at some period in its evolution






20. The dorsal part of the hip girdle






21. Genetic blending; each allele exerts some influence on the phenotype






22. A bone of the upper arm






23. A habitat zone - such as desert - grassland or tundra






24. A 12-carbon sugar that is formed by the union of two glucose units (a disaccharide)






25. A plant that belongs to the class of seed plants in which the seeds are not enclosed in an ovary; includes the conifers






26. A thin - transparent - eyelid-like membrane that opens and closes laterally across the cornea of many vertebrates (the third eyelid)






27. The intake of food from the environment into the alimentary canal






28. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes






29. A mitotic stage in which nuclei reform and nuclear membrane reappears






30. Blood protein that is transformed to fibrin upon clotting






31. The largest portion of the human brain; it is believed to be the center of intelligence - conscious thought and sensation






32. A condition in which an organism may have a multiple of the normal number of chromosomes (4n - 6n - etc)






33. A pouched mammal - such as the kangaroo or opossum






34. The tenth cranial nerve that innervates digestive organs - heart and other areas






35. The sensory organ of the inner ear of mammals; it is coiled and contains the organ of corti






36. An association between an algae and a fungus that is symbiotic and mutualistic in nature






37. Protein threads that form in the blood during clotting






38. A network - particularly of nerve or blood vessels






39. The ways in which organisms regulate their supply of water






40. A sensory hair structure in the utriculus and the sacculus of the inner ear; orients the head with respect to gravity






41. The external opening of the trachea in insects






42. A large class of arthropods - including crabs and lobsters






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






44. The coiled part of the sperm duct - adjacent to the testes in mammals






45. A group of life-maintaining processes that includes nutrition - respiration (the production of usable energy) and the synthesis and degradation of biochemical substances






46. Different relationships that are formed in proteins between the original sequence of amino acids and more complex three-dimensional compounds






47. The individual differences of form among the members of a species






48. Adenosine diphosphate (ADP) and adenosine triphosphate (ATP) - which are energy storage molecules






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






50. Encompasses the brain and the spinal cord