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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 part of the flower that bears the female gametophyte






2. A structure that arises during mitosis and helps separate the chromosomes; composed of tubulin






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






4. Organelles that serve as specialized containers for metabolic reactions






5. Blood protein that is transformed to fibrin upon clotting






6. An anucleate red blood cell that contains hemoglobin






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






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






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






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






11. The state in which two genetic traits are fully expressed and neither dominates






12. 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






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






14. The exchange of parts of homologous chromosomes during meiosis






15. 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






16. A pyrimidine component of nucleic acids and nucleotides; pairs with adenine in DNA






17. A marine arthropod - now extinct - that lived during the Paleozoic era






18. The veins that carry blood from the digestive organs to the liver






19. A wall composed of cellulose that is external to the cell membrane in plants; it is primarily involved in support and in the maintenance of proper internal pressure






20. A kind of white blood cell in vertebrates that is characterized by a rounded nucleus; involved in the immune response






21. Comprises somatic and autonomic nervous systems; consists of cranial nerves and spinal nerves






22. An organelle that contains enzymes that aid in intracellular digestion






23. An organic nutrient required by organisms in small amounts to aid in proper metabolic processes






24. A constituent of the plasma of the blood of vertebrates; it is converted to thrombin by thrombokinase in the presence of calcium ions - thus contributing to the clotting of blood






25. An individual that is heterozygous for only one trait






26. A mature ovary






27. The process by which a certain function is regulated by the amount of the substance it produces






28. A hormone produced by the Islets of Langerhans in the pancreas






29. A marine biome typical of the open seas






30. The male gonads that produce sperm and male hormones






31. Any cell that is not a reproductive cell






32. In taxonomy - a classification between species and family






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






34. A tract of nerve fibers connecting the two cerebral hemispheres






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






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






37. The orientation of cells or organisms in relation to chemical stimuli; the growth or movement response of organisms to chemical stimuli






38. A hormone that regulates water reabsorption






39. The outer - transparent layer of the eye






40. Compounds in bile that aid in emulsification






41. A transmitter substance released from the axons of nerve cells at the synapse






42. A response by an organism to the duration and timing of light and dark conditions






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






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






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






46. The division in animal cell cytoplasm caused by the pinching in of the cell membrane






47. A blood vessel that carries blood back to the heart from the capillaries






48. A sex or reproductive cell that must fuse with another of the opposite type to form a zygote






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






50. One or two or more types of genes - each representing a particular trait; many alleles exist for a specific gene locus







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Can you answer 50 questions in 15 minutes?


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