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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 organic catalyst and protein






2. Anaerobic respiration the yields 2 molecules of ATP - lactic acid - ethyl alcohol and carbon dioxide or some similar compound via the glycolytic pathway






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






4. A pair of chromosome pairs present during the first metaphase of meiosis






5. A substance that is acted upon by an enzyme






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






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






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






9. Requiring free oxygen from the atmosphere for normal activity and respiration






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






11. Blood protein that is transformed to fibrin upon clotting






12. 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)






13. A group of life-maintaining processes that includes nutrition - respiration (the production of usable energy) and the synthesis and degradation of biochemical substances






14. The part of the neuron that transmits impulses to the cell body






15. An organelle in the cytoplasm that contains RNA; serves as the site of protein synthesis






16. Occurs when different traits are inherited together more often than they would have been by chance along; it is assumed that these traits are linked on the same chromosome






17. Pertaining to a type of gland that releases its secretion through a duct






18. A type of virus that can destroy bacteria by infecting - parasitizing and eventually killing them






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






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






21. In mammals - the slitlike opening formed by the vocal folds in the larynx






22. The site of most digestion of nutrients and absorption of digested nutrients






23. An abbreviation of ribonucleic acid - a nucleic acid in which the sugar is ribose; a product of DNA transcription that serves to control certain cell activities






24. A fat-digesting hormone






25. The colored part of the eye that is capable of contracting and regulating the size of the pupils






26. A stage of embryonic development characterized by the differentiation of the cells into the ectoderm and endoderm germ layers and by the formation of the archenteron






27. A resistance to disease developed through the immune system






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






29. The second filial generation; offspring resulting from the crossing of individuals of the F1 generation






30. Adrenaline






31. Any organism that is the victim of a parasite






32. A hormone of the thyroid that regulates basal metabolism






33. The reproductive organ that produces sex cells






34. An air sac in the lung; the site of respiratory exchange - involving diffusion of oxygen and carbon dioxide between the air in the alveolus and the blood in the capillaries






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






36. The pigment in rod cells that causes light sensitivity






37. An ion with a positive charge - or an ion that migrates towards the cathode (negative electrode) in an electric field






38. A condition in which an organism may have a multiple of the normal number of chromosomes (4n - 6n - etc)






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






40. A disease-causing organism






41. The part of the alimentary canal between the mouth and the esophagus






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






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






44. A kingdom of unicellular living organisms that are neither animals nor plants; includes some groups of algae - slime molds and protozoa






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






46. The womb in which the fetus develops






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






48. The phylum to which jointed-legged invertebrates belong - including insects - arachnids and crustaceans






49. The final stages of protein synthesis in which the genetic code of nucleotide sequences is translated into a sequences of amino acids






50. The part of the flower that bears the female gametophyte