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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. A small projection in the walls of the small intestine that increases the surface area available for absorption






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






3. A flesh-eating animal; a holotrophic animal that subsists on other animals or parts of animals






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






5. An organism that possesses one or more whiplike appendages called flagella






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






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






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






9. A process of photosynthesis in which water is split into H+ and OH-; the hydrogen ion is then joined to NADP






10. A ring-shaped muscle that is capable of closing a tubular opening by constriction






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






12. The ability of an organism to contribute its alleles and therefore is phenotypic traits to future generations






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






14. The dorsal part of the hip girdle






15. The description of a plant life cycle that consists of a diploid - asexual - sporophyte generation and a haploid - sexual - gametrophyte generation






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






17. Describes a fluid that has the same osmotic pressure as a fluid it is compared to






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






19. The study of organisms in relation to their environment






20. Asexual reproduction; in this process - the parent organism splits into two equal daughter cells






21. A process by which the cytoplasm and the organelles of the cell divide; the final stage of mitosis






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






23. An underground stem






24. A structure of the eye that focuses images on the retina by changing its convexity






25. A plastid containing chlorophyll






26. The pollination of the pistil of one flower with pollen from the stamen of a different flower of the same species






27. The genetic makeup of an organism without regard to physical appearance






28. A specialized structure that carries out particular functions for eukaryotic cells






29. Describes cells (gametes) that have half the chromosome number typical of the species






30. xylem that is no longer being used






31. A protein compound containing iron that is found in red blood cells






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






33. A symbol that denotes the relative concentration of hydrogen ions in a solution






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






35. The pairing of homologous chromosomes during meiosis






36. The intake of fluid droplets into a cell






37. 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






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






39. One of a class of organic compounds that contains a molecular skeleton of four fused rings of carbon






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






41. Plant tissue consisting of large thin-walled cells for storage






42. Living or active in the absence of free oxygen; pertaining to respiration that is independent of oxygen






43. An organic catalyst and protein






44. A plant that has two seed leaves or cotyledons






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






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






47. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage






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






49. An organic cofactor required for enzyme activity






50. The exchange of parts of homologous chromosomes during meiosis