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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 outer layer of cerebral hemispheres in the forebrain - consisting of gray matter






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






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






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






5. A specialized structure that carries out particular functions for eukaryotic cells






6. An organic nutrient required by organisms in small amounts to aid in proper metabolic processes






7. The cavity in the mammalian ovary in which the egg ripens






8. An organelle that contains enzymes that aid in intracellular digestion






9. An organism that does not require free oxygen in order to respire






10. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species






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






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






13. The elimination of metabolic waster matter






14. The small granular body within the centrosome to which the spindle fibers attach






15. A resistance to disease produced through the injection of antibodies






16. Protective immunity to a disease in which the individual produces antibodies as a result of previous exposure to the antigen






17. A stage of embryonic development characterized by the differentiation of the cells into the ectoderm and endoderm germ layers and by the formation of the archenteron






18. A purine (nitrogenous base) component of nucleotides and nucleic acids; links with cytosine in DNA






19. A marine biome typical of the open seas






20. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage






21. A hormone that ripens fruit and induces aging






22. Bacteria that are rod shaped






23. A sugar composed of two combined monosaccharides






24. A blood vessel that carries blood away from the heart






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






26. The portion of seed plant embryo above the cotyledon






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






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






29. A nerve cell






30. A nerve fiber






31. An organic compound to which hydrogen and oxygen are attached; the hydrogen and oxygen are in a 2:1 ratio; examples include sugars - starches and cellulose






32. The study of the evolutionary descent and interrelations of groups of organisms






33. A process of cell division whereby each daughter cell receives only one set of chromosomes; the formation of gametes






34. An enzyme from the pancreas that digests proteins in the small intestine






35. A chemical messenger that is secreted by one part of the body and carried by the blood to affect another part of the body - usually a muscle or gland






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






37. A reproductive cell






38. A 12-carbon sugar that is formed by the union of two glucose units (a disaccharide)






39. Degree of penetrability - as in membranes that allow given substances to pass through; the ability to penetrate






40. A flesh-eating animal; a holotrophic animal that subsists on other animals or parts of animals






41. Fluid excreted by the kidney containing urea - water - salts - etc






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






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






44. A pyrimidine component of nucleic acids and nucleotides; pairs with adenine in DNA






45. A starch form in animals; glucose is converted to this in the liver






46. The outer - transparent layer of the eye






47. A complex carrier mechanism located on the inside of the inner mitochondrial membrane of the cell; releases energy and is used to form ATP






48. An opening in the eye whose size is regulated by the iris






49. A kind of microorganism that is between a virus and a bacterium; parasitic within the cells of insects and ticks






50. A dense fluid within the chloroplast in which CO2 is converted into sugars in photosynthesis