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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. 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






2. One-thousandth of a millimeter; a unit of microscopic length






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






4. 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






5. The site of most digestion of nutrients and absorption of digested nutrients






6. A network - particularly of nerve or blood vessels






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






8. A fluid-filled sensory apparatus that aids balance and hearing






9. A nerve fiber






10. A bundle of nerve axons






11. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






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






13. Describes an organism that lives symbiotically with a host; this host neither benefits nor suffers from the association






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






15. The intake of fluid droplets into a cell






16. Daily cycles of behavior






17. Movement of amoeba






18. An abbreviation of ribonucleic acid - a nucleic acid in which the sugar is ribose; a product of DNA transcription that serves to control certain cell activities






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






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






21. A plant that has two seed leaves or cotyledons






22. A habitat zone - such as desert - grassland or tundra






23. An animal phylum in which all members have a notochord - dorsal nerve cord and pharyngeal gill slits at some embryonic stage; includes the Cephalochordata and the Vertebrates






24. The inner part of the adrenal gland that secretes adrenalin






25. A structure that extends from the trunk of an organism and is capable of active movements






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






27. A condition in which an organism may have a multiple of the normal number of chromosomes (4n - 6n - etc)






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






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






30. Organelles that serve as specialized containers for metabolic reactions






31. The enzyme that acts upon lactose






32. The movement of particles from one place to another as a result of their random motion






33. The separation of homologous pairs of chromosomes following meiotic synapsis






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






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






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






37. Organism that produces its own food; first stage in the food chain






38. 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






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






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






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






42. A muscular valve regulating the flow of food from the stomach to the small intestine






43. A sensory organ capable of detecting light






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






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






46. A nerve cell






47. Membranous organelles involved in the storage and modification of secretory products






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






49. The cavity between the lungs and the wall of the chest






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