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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 process of breaking down large organic molecules into smaller ones






2. An abbreviation of nicotinamide-adenine-dinucleotide - also called DPN; a respiratory oxidation-reduction molecule






3. The portion of alimentary canal in which some protein digestion occurs






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






5. Random evolutionary changes in the genetic makeup of a population






6. An organ centrally involved in the human digestive system






7. A form of asexual reproduction in which the egg develops in the absence of sperm






8. Describes a fluid that has a higher osmotic pressure than another fluid it is compared to






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






10. Any cell capable of ingesting another cell






11. Occurs when different traits are inherited together more often than they would have been by chance along; it is assumed that these traits are linked on the same chromosome






12. The space between the mesodermal layers that forms the body cavity of some animal phyla






13. All the members of a given species inhabiting a certain locale






14. An organelle in the cytoplasm that contains RNA; serves as the site of protein synthesis






15. Passively floating or drifting flora and fauna of a body of water; consists mainly of microscopic organisms






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






17. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions






18. An accumulation of axons within the CNS that is white because it is fatty - myelin sheath






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






20. Refers to protective covering






21. A class of arthropods that includes scorpions - spiders - mites and ticks






22. A hormonal secretion of the adrenal cortex






23. One of a pair of kidney-shaped cells that surround a stomate and regulate the size of the stomate in a leaf






24. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species






25. Process of aerobic respiration that fully harvests the energy of glucose; also known as the citric acid cycle






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






27. The exchange of parts of homologous chromosomes during meiosis






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






29. Organelles that serve as specialized containers for metabolic reactions






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






31. An emulsifying agent secreted by the liver






32. The instance of polymorphism in which there is a difference of form between two members of a species - as between males and females






33. A plant that has a single cotyledon or seed-leaf






34. Changes in genes that are inherited






35. The navel






36. Pertains to a gene or characteristic that is masked when a dominant allele is present






37. A change from a diploid nucleus to a haploid nucleus - as in meiosis






38. An excretory product of protein metabolism






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






40. The female gonad in animals; the base of the pistil in plants






41. A hormone of the thyroid that regulates basal metabolism






42. A plant-eating animal






43. Describes organisms that are cooperative in action - such as hormones or other growth factors that reinforce each other's activity






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






45. Comprises somatic and autonomic nervous systems; consists of cranial nerves and spinal nerves






46. One of a group of compounds that is identical in a atomic composition - but different in structure and arrangement






47. The phylum to which segmented worms belong






48. The hormone secreted by the corpus luteum of vertebrates and the placenta of mammals; its function is to maintain the endometrium






49. Occurs when a segment of genetic material on a chromosome becomes reversed






50. A pair of chromosome pairs present during the first metaphase of meiosis