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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. A mitotic or meiotic stage in which the chromosomes become visible and during which the spindle fibers form; synapsis takes place during the first meiotic prophase






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






3. 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






4. Related to the sense of smell






5. The fist stage of protein synthesis - in which the information coded in the DNA base is transcribed onto a strand of mRNA






6. A stage of embryonic development in which the embryo consists of a hollow ball of cells






7. A sensory hair structure in the utriculus and the sacculus of the inner ear; orients the head with respect to gravity






8. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac






9. One of many tubules that absorb tissue fluid and return it to the bloodstream via the lymphatic system






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. Any organism that is the victim of a parasite






12. The hindbrain region that controls equilibrium and muscular coordination






13. A pouched mammal - such as the kangaroo or opossum






14. Substance secreted by organisms that influences the behavior of other members of the same species






15. The central tissue of a stem - used for food storage






16. A mall sex hormone (e.g. - testosterone)






17. A structure in animal cells containing centrioles from which the spindle fibers develop






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






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






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






22. Daily cycles of behavior






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






24. The process of forming the sperm cells from primary spermatocytes






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






26. Plant tissue consisting of large thin-walled cells for storage






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






28. Living - as in living organisms in the environment






29. A large class of arthropods - including crabs and lobsters






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






31. The part of the nervous system that regulates the involuntary muscles - such as the walls of the alimentary canal; includes the parasympathetic and sympathetic nervous systems






32. A membrane that envelopes the nucleus and separates it from the cytoplasm; present in eukaryotes






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






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






35. A flowering plant with simple dry fruit - characterized by nodes on their roots that contain nitrogen-fixing bacteria






36. One of the primary tissues of the embryo






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






38. Functional urinary tubules responsible for excretion in the kidney of vertebrates






39. The triploid tissue in some seeds that contains stored food and is formed by the union of one sperm nucleus with two nuclei of the female's gametophyte






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






41. The ways in which organisms regulate their supply of water






42. Waves of contraction and relaxation passing along a tubular structure - such as the digestive tube






43. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male






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






45. A plant growth hormone






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






47. Movement of amoeba






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






49. The most anterior portion of the small intestine of vertebrates - adjacent to the stomach; the continuation of the stomach into which the bile duct and pancreatic duct empty






50. A flowering plant; a plant of the class Angiospermae that produces seeds enclosed in an ovary and is characterized by the possession of fruits and flowers