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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 anterior pituitary hormone that stimulates the follicles in females and the function of the seminiferous tubules in males






2. The coiled part of the sperm duct - adjacent to the testes in mammals






3. The intake of food from the environment into the alimentary canal






4. Agent that induces mutations; typically carcinogenic






5. The loss of all or part of a chromosome






6. Three membranes that envelop the brain and spinal cord (pia mater - dura mater and arachnoid)






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






8. A space in the cytoplasm of a cell that contains fluid






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






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






11. The genetic makeup of an organism without regard to physical appearance






12. A specialized structure that leads to the digestive tract of a developing organism and provides it with food during early development






13. A sugar composed of two combined monosaccharides






14. An organic catalyst and protein






15. The recycling of nitrogen from decaying organism for use in future generations






16. An enzyme that acts upon sucrose






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






18. Hormone active in osmoregulation; a mineral corticoid produced by the adrenal cortex; stimulates reabsorption of Na+ and secretion of K+






19. The inner portion of the cytoplasm of a cell or the portion that surrounds the nucleus






20. 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






21. The study of form and structure






22. A typical coelenterate individual with a hollow tubular body whose outer ectoderm is separated from its inner ectoderm by mesoglea






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






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






25. Nonfunctional haploid cells created during meiosis in females; they have very little cytoplasm-most has gone into the functional egg cell






26. A stage of mitosis; chromosomes line up at the equator of the cell






27. A nitrogen base such as cytosine - thymine and uracil; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






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






29. Blood vessels located between ascending and descending aortas that deliver blood to most of the upper body






30. The process by which water and dissolved substances pass through a membrane






31. The external opening of the trachea in insects






32. A change from a diploid nucleus to a haploid nucleus - as in meiosis






33. A bony or chitinous case or shield covering the back or part of the back of an animal (shell of a crab)






34. A lateral region of the forebrain






35. Describes arthropods and other animals whose skeletal or supporting structures are outside the skin






36. Unicellular organism with simple cell structure






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






38. A plant that has two seed leaves or cotyledons






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






40. A cell in the retina that is sensitive to weak light






41. A waxy protective layer secreted by the outer surface of plants - insects - etcetera






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






43. An antipathogenic substance (e.g. - penicillin)






44. An organ that stores bile






45. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter






46. A metabolic stage between mitoses in which genetic material is reproduced






47. Genetic blending; each allele exerts some influence on the phenotype






48. The ways in which organisms regulate their internal heat






49. The outer - transparent layer of the eye






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