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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 loss of all or part of a chromosome






2. 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






3. One of a class of organic compounds that contains a molecular skeleton of four fused rings of carbon






4. A duct through which the urine passes from the bladder to the outside






5. One of a pair of kidney-shaped cells that surround a stomate and regulate the size of the stomate in a leaf






6. Protein threads that form in the blood during clotting






7. A structure formed by the wall of the uterus and the chorion of the embryo; serves as the area in which the embryo obtains nutrition from the parent






8. The vascular tissue of a plant that transports organic materials (photosynthetic products) from the leaves to other parts of the plant






9. The sac in the ovary in which the egg develops






10. The coagulation of blood caused by the rupture of platelets and the interaction of fibrin - fibrinogen - thrombin - prothrombin and calcium ions






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






12. The innermost embryonic germ layer that gives rise to the lining of the alimentary canal and to the digestive and respiratory organs






13. A symbol that denotes the relative concentration of hydrogen ions in a solution






14. A "seed leaf"; responsible for food digestion and storage in plant embryo






15. The type of mating that occurs when an organism selects a mating partner that resembles itself






16. The sensory branch of each spinal nerve






17. One of the paired lateral divisions of the forebrain






18. A class of arthropods that includes scorpions - spiders - mites and ticks






19. A major lymphatic that empties lymph into a vein in the neck






20. The basal branch of each spinal nerve; carries motor neurons






21. Involuntary muscle






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






23. Chemical groups attached to carbon skeletons that give compounds their functionality






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






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






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






27. Cells which in the female are located between the ovarian follicles and in the male are located between the seminiferous tubules of the testes






28. A hormone that regulates water reabsorption






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






30. Nonfunctional haploid cells created during meiosis in females; they have very little cytoplasm-most has gone into the functional egg cell






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






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






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






34. A wall composed of cellulose that is external to the cell membrane in plants; it is primarily involved in support and in the maintenance of proper internal pressure






35. A nitrogenous base such as adenine or guanine; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






36. An organism that must get its inorganic and organic raw materials from the environment; a consumer






37. A tube connecting the ovaries and the uterus






38. The inner layer of an organ surrounded by the cortex






39. Pertaining to a subdivision of the autonomic nervous system






40. 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






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






42. The outermost bone of the middle ear (hammer)






43. The ability of certain animals to regrow missing body parts






44. The ways in which organisms regulate their internal heat






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






46. The transfer of pollen from the stamen to the pistil of the same flower






47. In plants - the tissue between the epidermis and the vascular cylinder in the roots and stems of plants; in animals - the outer tissue of some organs






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






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






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







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