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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 place of attachment of the mitotic fiber to the chromosome






3. The process of forming the sperm cells from primary spermatocytes






4. The passive - rhythmical expansion or dilation of the cavities of the heart (atria or ventricles) that allows these organs to fill with blood; preceded and followed by systole (contraction)






5. A family tree depicting the inheritance of a particular genetic trait over several generations






6. An organism that does not require free oxygen in order to respire






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






8. The evaporation of water from leaves or other exposed surfaces of plants






9. The fluid that remains after fibrinogen is removed from the blood plasma of vertebrates






10. A flowering plant with simple dry fruit - characterized by nodes on their roots that contain nitrogen-fixing bacteria






11. Changes in genes that are inherited






12. A thyroid deficiency that results in stunted growth and feeblemindedness






13. 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






14. The class of free-living flatworms






15. An endocrine gland located in the neck that produces thyroxin






16. Any cell capable of ingesting another cell






17. Unicellular organism with simple cell structure






18. The junction or gap between the axon terminal of one neuron and the dendrites of another neuron






19. Describes an individual that possesses two contrasting alleles for a given trait






20. A vacuole in the cytoplasm in which digestion takes place (in protozoans)






21. A structure that extends from the trunk of an organism and is capable of active movements






22. The womb in which the fetus develops






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






24. An association between an algae and a fungus that is symbiotic and mutualistic in nature






25. The sensory branch of each spinal nerve






26. The study of all living processes - activities and functions






27. The inner layer of an organ surrounded by the cortex






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






29. The orderly process by which one biotic community replaces another until a climax community is established






30. The exchange of parts of homologous chromosomes during meiosis






31. The smallest particle that is capable of carrying out photosynthesis; the functional unit of a chloroplast






32. A structure formed by the wall of the uterus and the chorion of the embryo; serves as the area in which the embryo obtains nutrition from the parent






33. A jellyfish






34. Encompasses the brain and the spinal cord






35. A behavioral or biological change that enables an organism to adjust to its environment






36. A hormone that stimulates plant stem elongation






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






38. Any physical feature that prevents the ecological niches of different organisms from overlapping






39. Cytoplasmic organelles that serve as sites of respiration; a rod-shaped body in the cytoplasm known to be the center of cellular respiration






40. The living together of two organisms in an intimate relationship






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






42. Multicellular organism






43. The phylum to which segmented worms belong






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






45. The removal of an amino group from an organism - particularly from an amino acid






46. A form of anaerobic respiration found in yeast and bacteria






47. The removal of hydrogen or electrons from a compound or addition of oxygen; half of a redox (oxidation or reduction) process






48. The coagulation of blood caused by the rupture of platelets and the interaction of fibrin - fibrinogen - thrombin - prothrombin and calcium ions






49. Deoxyribonucleic acid; found in cell nucleus - its basic unit is the nucleotide; contains coded genetic information; can replicate on the basis of heredity






50. The female gamete; it is nonmotile - large in comparison to male gametes - and stores nutrients