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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 specialized structure that controls osmotic pressure by removing water from the cell






2. The pairing of homologous chromosomes during meiosis






3. An undifferentiated - growing region of a plant that is constantly undergoing cell division and differentiation






4. A progressive change from which a permanently more mature or advanced state results






5. Cytoplasmic bodies within a plant cell that are often pigmented






6. A ductless gland that secretes hormones directly into the bloodstream






7. Substance secreted by organisms that influences the behavior of other members of the same species






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






9. An emulsifying agent secreted by the liver






10. The transformation of an immature animal into an adult; a change in the form of an organ or structure






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






12. A metabolic stage between mitoses in which genetic material is reproduced






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






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






15. A structure in animal cells containing centrioles from which the spindle fibers develop






16. A period in the development of animals between the embryo and adult stages; starts at hatching and ends in metamorphasis






17. Refers to protective covering






18. A resistance to disease developed through the immune system






19. One of the two strands that constitute a chromosome; chromatids are held together by the centromere






20. The loss of all or part of a chromosome






21. Fluid skeleton of annelids






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






23. The outermost surface of an organism






24. The association of physical - visceral response with an environmental stimulus with which it is not naturally associated; a learned response






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






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






27. The extraembyonic membrane of birds - reptiles and mammals that serves as an area of gaseous exchange and as a site for the storage of noxious excretion products






28. Pertaining to a restricted locality; ecologically - occurring only in one particular region






29. The posterior part of the brain that controls the rate of breathing and other autonomic functions






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






31. The place of attachment of the mitotic fiber to the chromosome






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






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






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






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






36. A network - particularly of nerve or blood vessels






37. A nuclear protein of chromosomes that stains readily






38. An opening in the eye whose size is regulated by the iris






39. The transfer of pollen to the micropyle or to a receptive surface that is associated with an ovule (such as stigma)






40. The basal branch of each spinal nerve; carries motor neurons






41. A stomach enzyme that partially digests proteins






42. A kind of microorganism that is between a virus and a bacterium; parasitic within the cells of insects and ticks






43. 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)






44. A category of taxonomic classification that is ranked above class and under kingdoms






45. A reproductive cell that is capable of developing directly into an adult






46. An offspring that is heterozygous for one or more gene pairs






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






48. The part of the nervous system that regulates the involuntary muscles - such as the walls of the alimentary canal; includes the parasympathetic and sympathetic nervous systems






49. A remnant of follicle after ovulation that secretes the hormone progesterone






50. A mitotic stage in which nuclei reform and nuclear membrane reappears