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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 external opening of the trachea in insects






2. A plant growth hormone






3. A reproductive cell






4. An organ that stores bile






5. The most anterior portion of the small intestine of vertebrates - adjacent to the stomach; the continuation of the stomach into which the bile duct and pancreatic duct empty






6. A bundle of nerve axons






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






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






9. An organic molecule consisting of joined phosphate - 5-carbon sugar (deoxyribose or ribose) - and a purine or a pyrimidine (adenine - guanine - uracil - thymine or cytosine)






10. A relationship in which one organism benefits at the expense of another






11. A bone of the upper arm






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






13. A nitrogen base that is present in nucleotides and nucleic acids; it is paired with guanine






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






15. The elimination of metabolic waster matter






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






17. The navel






18. The process by which carbohydrates are formed through chemical energy; found in bacteria






19. A mass of cells that have similar structures and perform similar functions






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






21. A nerve fiber






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






23. Living - as in living organisms in the environment






24. A pyrimidine found in RNA (but not DNA); pairs with DNA adenine






25. Any movement or growth of a living organism in response to the force of gravity






26. The portion of seed plant embryo above the cotyledon






27. The organelle that provides mechanical support and carries out motility functions for the cell






28. The conversion of digested foods and other materials into forms usable by the body (i.e. - the conversion of amino acids into proteins)






29. Pertaining to the head






30. Laws of classical genetics established through Mendel's experiments with peas






31. An anucleate red blood cell that contains hemoglobin






32. An organelle that contains enzymes that aid in intracellular digestion






33. The part of the hindbrain located in the brain stem






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






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






36. A purine (nitrogenous base) component of nucleotides and nucleic acids; links with cytosine in DNA






37. The ourter part of the adrenal gland that secretes many hormones - including cortisone and aldosterone






38. A marine biome typical of the open seas






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






40. An emulsifying agent secreted by the liver






41. The thin - bent part of the renal tubule that is the site of the counter-current flow and the sodium gradient






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






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






44. An air duct from the middle ear to the throat that equalizes external and internal air pressure






45. The enzyme that acts upon lactose






46. The dorsal part of the hip girdle






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






48. The haploid - sexual stage in the life cycle of plants






49. An enzyme that acts upon maltose and converts it into glucose






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