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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. Bacteria that are rod shaped






2. The junction or gap between the axon terminal of one neuron and the dendrites of another neuron






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






4. Occurs when a segment of genetic material on a chromosome becomes reversed






5. The portion of seed plant embryo above the cotyledon






6. Cytoplasmic organelles that serve as sites of respiration; a rod-shaped body in the cytoplasm known to be the center of cellular respiration






7. Organism that consumes food from outside itself instead of producing it






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






9. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait






10. The external opening of the trachea in insects






11. An abbreviation of nicotinamide-adenine-dinucleotide - also called DPN; a respiratory oxidation-reduction molecule






12. A disease-causing organism






13. The coagulation of blood caused by the rupture of platelets and the interaction of fibrin - fibrinogen - thrombin - prothrombin and calcium ions






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






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






16. An organism that possesses one or more whiplike appendages called flagella






17. A green pigment that performs essential functions as an electron donor and light "entrapper" in photosynthesis






18. The biome located between the polar region and the tiaga






19. A neuron that picks up impulses from receptors and transmits them to the spinal cord






20. A sensory organ capable of detecting light






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






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






23. A foreign protein that stimulates the production of antibodies when introduced into the body of an organism






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






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






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






27. An air-conducting tube






28. A class of arthropods that includes scorpions - spiders - mites and ticks






29. Passively floating or drifting flora and fauna of a body of water; consists mainly of microscopic organisms






30. The womb in which the fetus develops






31. An association of homologous chromosomes during the first meiotic division






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






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






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






35. Pertains to a gene or characteristic that is masked when a dominant allele is present






36. Pertaining to a restricted locality; ecologically - occurring only in one particular region






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






38. 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






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






40. A unit of heat; the amount of heat required to raise the temperature of one gram of water by one degree centigrade






41. The stage in mitosis that is characterized by the migration of chromatids to opposite ends of the cell; the stage in meiosis during which homologus pairs migrate (Anaphase I) - and the stage in meiosis during which chromatids migrate to different end






42. An anucleate red blood cell that contains hemoglobin






43. Describes an individual that has the same gene for the same trait on each homologous chromosome






44. Partially digested food in the stomach






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






46. The recycling of carbon from decaying organisms for use in future generations






47. The ability of certain animals to regrow missing body parts






48. Globular proteins produced by tissues that destroy or inactivate antigens






49. In mitosis of higher plants - the structure that forms between the divided nuclei of the two daughter cells and eventually becomes the cell wall






50. The mammalian oviduct that leads from the ovaries to the uterus