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






2. Compounds in bile that aid in emulsification






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






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






5. An invertebrate animal phylum in which animals possess a single alimentary opening and tentacles with stinging cells






6. The conversion of digested foods and other materials into forms usable by the body (i.e. - the conversion of amino acids into proteins)






7. The exchange of parts of homologous chromosomes during meiosis






8. A hormone that stimulates plant stem elongation






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






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






11. A cell that divides to form two secondary spermatocytes






12. A white or colorless - amorphous - horny substance that forms part of the outer integument of insects - crustaceans and some other invertebrates; it also occurs in certain fungi






13. The law by which genes on different chromosomes are inherited independently of each other






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






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






16. One of the two strands that constitute a chromosome; chromatids are held together by the centromere






17. A symbiotic relationship from which both organisms involved derive some benefit






18. A simple sugar






19. A transmitter substance released from the axons of nerve cells at the synapse






20. The transformation of an immature animal into an adult; a change in the form of an organ or structure






21. The fluid that remains after fibrinogen is removed from the blood plasma of vertebrates






22. One of a group of compounds that is identical in a atomic composition - but different in structure and arrangement






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






24. A ductless gland that secretes hormones directly into the bloodstream






25. A plastid containing chlorophyll






26. A group of life-maintaining processes that includes nutrition - respiration (the production of usable energy) and the synthesis and degradation of biochemical substances






27. Undifferentiated tissue in the stem of a plant that aids growth in width






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






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






30. Anaerobic respiration the yields 2 molecules of ATP - lactic acid - ethyl alcohol and carbon dioxide or some similar compound via the glycolytic pathway






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






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






33. The first filial generation (first offspring)






34. The class of free-living flatworms






35. The primary germ layer - developed from the lip of the blastopore - that gives rise to the skeleton - the circulatory system and many organs and tissues between the epidermis and the epithelium






36. The process by which carbohydrates are formed through chemical energy; found in bacteria






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






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






39. A fatty sheath surrounding the axon of a neuron that aids in stimulus transmission; it is secreted by the Schwann cells






40. The portion of the embryonic seed plant below the point of attachment of the coytledon; form the root






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






42. The liquid part of blood






43. The contraction of the atria or ventricles of the heart






44. A family tree depicting the inheritance of a particular genetic trait over several generations






45. Involuntary muscle






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






47. The sensory branch of each spinal nerve






48. An "emergency" hormone stimulated by anger or fear; increase blood pressure and heart rate in order to supply the emergency needs of the muscles






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






50. The part of the male reproductive organ (the stamen) that produces and stores pollen