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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 substance that is acted upon by an enzyme






2. The hormone secreted by the corpus luteum of vertebrates and the placenta of mammals; its function is to maintain the endometrium






3. 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






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






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






6. 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)






7. A hormone that stimulates plant stem elongation






8. The tenth cranial nerve that innervates digestive organs - heart and other areas






9. A protein compound containing iron that is found in red blood cells






10. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait






11. The swelling at the end of an axon






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






13. A nuclear protein of chromosomes that stains readily






14. Living or active in the absence of free oxygen; pertaining to respiration that is independent of oxygen






15. Agent that induces mutations; typically carcinogenic






16. Blood protein that is transformed to fibrin upon clotting






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






18. A neuron that picks up impulses from receptors and transmits them to the spinal cord






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






20. The part of the alimentary canal between the mouth and the esophagus






21. Any cell that is not a reproductive cell






22. A form of asexual reproduction in which the egg develops in the absence of sperm






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






24. A process by which the cytoplasm and the organelles of the cell divide; the final stage of mitosis






25. A hormone produced by the Islets of Langerhans in the pancreas






26. Pertains to a gene or characteristic that is masked when a dominant allele is present






27. One of the primary tissues of the embryo






28. A metabolic stage between mitoses in which genetic material is reproduced






29. Nonliving - as in the physical environment






30. One of the paired lateral divisions of the forebrain






31. A nitrogen base that is present in nucleotides and nucleic acids; it is paired with guanine






32. A hormonal secretion of the adrenal cortex






33. A remnant of follicle after ovulation that secretes the hormone progesterone






34. Describes an individual that possesses two contrasting alleles for a given trait






35. The evaporation of water from leaves or other exposed surfaces of plants






36. A sugar composed of two combined monosaccharides






37. A nerve fiber






38. The pairing of homologous chromosomes during meiosis






39. Bacteria that are rod shaped






40. A specialized structure that controls osmotic pressure by removing water from the cell






41. The smallest particle that is capable of carrying out photosynthesis; the functional unit of a chloroplast






42. The chamber in the alimentary canal of certain vertebrates located below the large intestine - into which the ureter and reproductive organs empty (as in frogs)






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






44. Protein threads that form in the blood during clotting






45. The female gamete; it is nonmotile - large in comparison to male gametes - and stores nutrients






46. The liquid part of blood






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






48. A digestive enzyme of the saliva that turns starch into maltose (salivary amylase)






49. A portion of the CNS consisting of cytons (cell bodies) - their dendrites and synaptic connections






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