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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 nuclear protein of chromosomes that stains readily






2. The portion of alimentary canal in which some protein digestion occurs






3. A four-letter code made up of the DNA nitrogen bases A - T - G and C; each chromosome is made up of thousands of these bases






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






5. The innermost tissue layer of the eyeball that contains light-sensitive receptor cells






6. The system of naming an organism by its genus and species name






7. A fluid-filled sensory apparatus that aids balance and hearing






8. The study of organisms in relation to their environment






9. An organism that produces spores; a phase in the diploid-haploid life cycle that alternates with a gametophyte phase






10. A group of populations that can interbreed






11. A mitotic stage in which nuclei reform and nuclear membrane reappears






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






13. The outer - transparent layer of the eye






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






15. The class of free-living flatworms






16. An excretory product of protein metabolism






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






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






19. The largest artery; carries blood from the left ventricle






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






21. An abbreviation of nicotinamide-adenine-dinucleotide-phosphate - also called TPN; an organic compound that serves as an oxidation-reduction molecule






22. An enzyme that acts upon sucrose






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






24. The study of form and structure






25. An organism that is heterozygous for two different traits






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






27. The association of physical - visceral response with an environmental stimulus with which it is not naturally associated; a learned response






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






29. The first filial generation (first offspring)






30. 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






31. A structure found between the cerebral hemispheres of vertebrates; secretes melatonin






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






33. A mitotic or meiotic stage in which the chromosomes become visible and during which the spindle fibers form; synapsis takes place during the first meiotic prophase






34. A mature ovary






35. The instance of polymorphism in which there is a difference of form between two members of a species - as between males and females






36. Unicellular organism with simple cell structure






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






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






39. The womb in which the fetus develops






40. A tube one cell thick that carries blood from artery to vein; the site of material exchange between the blood and tissues of the body






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






42. The thin-walled anterior chamber of the heart (also called the auricle)






43. The more muscular chamber(s) of the heart that pump blood to the lungs and to the rest of the body






44. Any cell that is not a reproductive cell






45. One of a class of organic compounds that is composed of many amino acids; contains C - H - O and N






46. Describes organisms that are cooperative in action - such as hormones or other growth factors that reinforce each other's activity






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






48. A lymph tubule located in the villus that absorbs fatty acids






49. A dark-staining small body within the nucleus; composed of RNA






50. The extraembyonic membrane of birds - reptiles and mammals that serves as an area of gaseous exchange and as a site for the storage of noxious excretion products