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






2. A specialized structure that leads to the digestive tract of a developing organism and provides it with food during early development






3. The orderly process by which one biotic community replaces another until a climax community is established






4. The smallest particle that is capable of carrying out photosynthesis; the functional unit of a chloroplast






5. The separation of homologous pairs of chromosomes following meiotic synapsis






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






7. An organism that must get its inorganic and organic raw materials from the environment; a consumer






8. The fusion of sperm and the egg to produce a zygote






9. An enzyme that acts upon sucrose






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






11. Undifferentiated tissue in the stem of a plant that aids growth in width






12. An organism that produces spores; a phase in the diploid-haploid life cycle that alternates with a gametophyte phase






13. The exchange of parts of homologous chromosomes during meiosis






14. A nitrogenous base such as adenine or guanine; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






15. A network of capillaries in the Bowman's capsules of the kidney






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






17. A tube connecting the ovaries and the uterus






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






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






20. A cell that divides to form the polar body and the secondary oocyte






21. A structure found between the cerebral hemispheres of vertebrates; secretes melatonin






22. The thigh bone of vertebrates






23. The stage in mitosis that is characterized by the migration of chromatids to opposite ends of the cell; the stage in meiosis during which homologus pairs migrate (Anaphase I) - and the stage in meiosis during which chromatids migrate to different end






24. A nerve fiber






25. Movement of amoeba






26. Describes an individual that has the same gene for the same trait on each homologous chromosome






27. The process of breaking down large organic molecules into smaller ones






28. A structure that arises during mitosis and helps separate the chromosomes; composed of tubulin






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






30. The movement of particles from one place to another as a result of their random motion






31. A substance that participates in the clotting of blood in vertebrates






32. The cellular layer that covers external and internal surfaces






33. The outermost - extra-embryonic membrane of reptiles and birds






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






35. A hydrogen carrier containing iron that functions in many cellular processes - including respiration






36. A sex or reproductive cell that must fuse with another of the opposite type to form a zygote






37. Pertaining to a subdivision of the autonomic nervous system of vertebrates






38. A plant that lives on another plant mensalistically






39. The study of organisms in relation to their environment






40. An organism that is heterozygous for two different traits






41. An air-conducting tube






42. A stage of embryonic development characterized by the differentiation of the cells into the ectoderm and endoderm germ layers and by the formation of the archenteron






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






44. An organic cofactor required for enzyme activity






45. The area of medulla that regulates the rate of breathing






46. A fat-digesting hormone






47. A female sex hormone secreted by the follicle






48. The navel






49. A nitrogen base such as cytosine - thymine and uracil; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






50. The living matter of a cell - located between the cell membrane and the nucleus