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






2. Chemical groups attached to carbon skeletons that give compounds their functionality






3. An antigen in blood; can cause erythroblastosis fetalis when the mother is Rh- and the fetus is Rh+






4. The portion of the embryonic seed plant below the point of attachment of the coytledon; form the root






5. A symbiotic relationship from which both organisms involved derive some benefit






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






7. Describes cells that have a double set of chromosomes in homologous pairs (2n)






8. The inner part of the adrenal gland that secretes adrenalin






9. Describes structures that have similar function but different evolutionary origins; e.g. - a bird's wing and a moth's wing






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






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






12. A microscopic - whiplike filament that serves as a locomotor structure in flagellate cells






13. The system of naming an organism by its genus and species name






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






15. The ways in which organisms regulate their supply of water






16. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac






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






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






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






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






21. A fluid-filled sensory apparatus that aids balance and hearing






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






23. 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)






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






25. A blood vessel that carries blood away from the heart






26. An organelle that regulates cell functions and contains the genetic material of the cell






27. A sugar composed of two combined monosaccharides






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






29. A four-letter code made up of the DNA nitrogen bases A - T - G and C; each chromosome is made up of thousands of these bases






30. A substance that participates in the clotting of blood in vertebrates






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






32. Fluid excreted by the kidney containing urea - water - salts - etc






33. An invertebrate animal phylum in which animals possess a single alimentary opening and tentacles with stinging cells






34. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions






35. The study of form and structure






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






37. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






38. The outermost bone of the middle ear (hammer)






39. A hormonal secretion of the adrenal cortex






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






41. The class of free-living flatworms






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






43. The production of daughter cells by means other than the sexual union of gametes (as in budding and binary fission)






44. A hoofed animal






45. Small - disc-shaped bodies in the blood that play a chief role in coagulation






46. A cell resulting from the fusion of gametes






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






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






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






50. A dense fluid within the chloroplast in which CO2 is converted into sugars in photosynthesis