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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 inner portion of the cytoplasm of a cell or the portion that surrounds the nucleus






2. One of the primary tissues of the embryo






3. A thin - transparent - eyelid-like membrane that opens and closes laterally across the cornea of many vertebrates (the third eyelid)






4. Blood protein that is transformed to fibrin upon clotting






5. A hormone that regulates water reabsorption






6. 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)






7. A mucus-secreting membrane






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






9. A marine biome; a region on the continental shelf that contains an ocean area with depths of up to 600 ft






10. The enzyme released from the blood platelets in vertebrates during clotting






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






12. Related to the sense of smell






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






14. Pertaining to the head






15. Daily cycles of behavior






16. A substance that prevents appreciable changes in pH in solutions to which small quantities of acids or bases are added






17. The pressure exerted by the contents of a cell against the cell membrane or cell wall






18. An organic cofactor required for enzyme activity






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






20. A stomach enzyme that partially digests proteins






21. Outgrowths of a root's epidermal cells that allow for greater surface area for absorption of nutrients and water






22. Unicellular organism with simple cell structure






23. A cell that divides to form two secondary spermatocytes






24. A five carbon sugar that has one oxygen atom less than ribose; a component of DNA






25. Protein threads that form in the blood during clotting






26. The first filial generation (first offspring)






27. A motile - multinucleate mass of protoplasm resulting from fusion of uninuclear amoeboid cells






28. The external opening of the trachea in insects






29. One of a group of compounds that is identical in a atomic composition - but different in structure and arrangement






30. A hydrogen carrier containing iron that functions in many cellular processes - including respiration






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






32. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes






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






34. Tissue formed by the differentiation of cambium that causes a growth in width of a plant system






35. The part of the male reproductive organ (the stamen) that produces and stores pollen






36. A hormone of the thyroid that regulates basal metabolism






37. A reproductive cell






38. Vascular tissue of the plant that aids in support and carries water






39. The production of a number of different species from a single ancestral species






40. The stable - biotic part of the ecosystem in which populations exist in balance with each other and with the environment






41. Laws of classical genetics established through Mendel's experiments with peas






42. A nerve fiber






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






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






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






46. The process by which environmental patterns or objects presented to a developing organism during a "critical period" of its growth is accepted as a permanent element of its behavior






47. In plants - the tissue between the epidermis and the vascular cylinder in the roots and stems of plants; in animals - the outer tissue of some organs






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






49. The area of medulla that regulates the rate of breathing






50. A white or colorless - amorphous - horny substance that forms part of the outer integument of insects - crustaceans and some other invertebrates; it also occurs in certain fungi







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