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






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






3. Fluid in the eye - found between the cornea and the lens






4. The outermost - extra-embryonic membrane of reptiles and birds






5. The transfer of a piece of chromosome to another chromosome






6. A cell in the retina that is sensitive to weak light






7. The science of classification of living things






8. The phylum of sponges






9. 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






10. The genetic makeup of an organism without regard to physical appearance






11. A progressive change from which a permanently more mature or advanced state results






12. A process of photosynthesis in which water is split into H+ and OH-; the hydrogen ion is then joined to NADP






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






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






15. Daily cycles of behavior






16. An undifferentiated - growing region of a plant that is constantly undergoing cell division and differentiation






17. A carbohydrate that is composed of many monosaccharide units joined together






18. A small projection in the walls of the small intestine that increases the surface area available for absorption






19. A nerve cell






20. Describes structures that have similar function but different evolutionary origins; e.g. - a bird's wing and a moth's wing






21. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter






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






23. Any movement or growth of a living organism in response to the force of gravity






24. The dorsal part of the hip girdle






25. A large molecule that is composed of many similar molecule units






26. The fusion of sperm and the egg to produce a zygote






27. The portion of alimentary canal connecting the pharynx and the stomach






28. The largest portion of the human brain; it is believed to be the center of intelligence - conscious thought and sensation






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






30. The uppermost portion of pistil upon which pollen grains alight






31. An endocrine gland of vertebrates - usually paired - and located near or within the thyroid that secretes parathormone - which controls the metabolism of calcium






32. Process of aerobic respiration that fully harvests the energy of glucose; also known as the citric acid cycle






33. 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






34. A substance that participates in the clotting of blood in vertebrates






35. A plant that belongs to the class of seed plants in which the seeds are not enclosed in an ovary; includes the conifers






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






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






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






39. The space between the mesodermal layers that forms the body cavity of some animal phyla






40. The passive - rhythmical expansion or dilation of the cavities of the heart (atria or ventricles) that allows these organs to fill with blood; preceded and followed by systole (contraction)






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






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






43. A change from a diploid nucleus to a haploid nucleus - as in meiosis






44. A typical coelenterate individual with a hollow tubular body whose outer ectoderm is separated from its inner ectoderm by mesoglea






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






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






47. A process by which the vesicle in the cell fuses with the cell membrane and releases its contents to the outside






48. The sensory branch of each spinal nerve






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






50. A reproductive cell