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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 pigment in rod cells that causes light sensitivity






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






3. The recycling of nitrogen from decaying organism for use in future generations






4. An excretory product of protein metabolism






5. Related to the sense of smell






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






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






8. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter






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






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






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






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






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






14. A reproductive cell






15. A short - stubby rod consisting of chromatin that is found in the nucleus of the cells; contains the genetic or hereditary component of cells (in the form of genes)






16. Any chromosome that is not a sex chromosome






17. The first filial generation (first offspring)






18. An abbreviation of nicotinamide-adenine-dinucleotide-phosphate - also called TPN; an organic compound that serves as an oxidation-reduction molecule






19. A section of the posterior forebrain associated with the pituitary gland






20. The exchange of parts of homologous chromosomes during meiosis






21. An "emergency" hormone stimulated by anger or fear; increase blood pressure and heart rate in order to supply the emergency needs of the muscles






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






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






24. A perforation leading from the pharynx to the outside environment that is a characteristic of chordates at one stage of their development






25. A "seed leaf"; responsible for food digestion and storage in plant embryo






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






27. Partially digested food in the stomach






28. The mammalian oviduct that leads from the ovaries to the uterus






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






30. A mall sex hormone (e.g. - testosterone)






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






32. The stable - biotic part of the ecosystem in which populations exist in balance with each other and with the environment






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






34. Describes arthropods and other animals whose skeletal or supporting structures are outside the skin






35. A multidirectional sensory system of lower animals such as the hydra - consisting of nerve fibers spread throughout the ectoderm






36. Fluid skeleton of annelids






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






38. Cycle in photosynthesis that reduces fixed carbon to carbohydrates through the addition of electrons ("dark cycle")






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






40. Protective immunity to a disease in which the individual produces antibodies as a result of previous exposure to the antigen






41. Protein threads that form in the blood during clotting






42. The part of the flower that produces pollen






43. Nonliving - as in the physical environment






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






45. A typical coelenterate individual with a hollow tubular body whose outer ectoderm is separated from its inner ectoderm by mesoglea






46. A resistance to disease produced through the injection of antibodies






47. An organism that requires oxygen for respiration and can live only in the presence of oxygen






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






49. A mutation in which a single nucleotide base is substituted for another nucleotide base - or an extra nucleotide base is added






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