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






2. A cell resulting from the fusion of gametes






3. A bony or chitinous case or shield covering the back or part of the back of an animal (shell of a crab)






4. The ways in which organisms regulate their internal heat






5. Changes in genes that are inherited






6. The part of the nervous system that regulates the involuntary muscles - such as the walls of the alimentary canal; includes the parasympathetic and sympathetic nervous systems






7. The creation of certain strains of specific traits through control of breeding






8. Tubules that excrete metabolic wastes into the hindgut in arthropods






9. The portion of a DNA molecule that serves as a unit of heredity; found on the chromosome






10. An organ that stores urine temporarily before it is excreted






11. The enzyme that acts upon lactose






12. Refers to protective covering






13. Any physical feature that prevents the ecological niches of different organisms from overlapping






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






15. Semen






16. Pertaining to a restricted locality; ecologically - occurring only in one particular region






17. The stable - biotic part of the ecosystem in which populations exist in balance with each other and with the environment






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






19. Cytoplasmic organelles that serve as sites of respiration; a rod-shaped body in the cytoplasm known to be the center of cellular respiration






20. Blood vessels located between ascending and descending aortas that deliver blood to most of the upper body






21. Membranous organelles involved in the storage and modification of secretory products






22. A response by an organism to the duration and timing of light and dark conditions






23. The process by which water and dissolved substances pass through a membrane






24. A network of capillaries in the Bowman's capsules of the kidney






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






26. A section of the posterior forebrain associated with the pituitary gland






27. xylem that is no longer being used






28. 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






29. 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






30. The intake of fluid droplets into a cell






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






32. An organic catalyst and protein






33. An animal phylum in which all members have a notochord - dorsal nerve cord and pharyngeal gill slits at some embryonic stage; includes the Cephalochordata and the Vertebrates






34. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male






35. A pyrimidine found in RNA (but not DNA); pairs with DNA adenine






36. A colloidal system involving the dispersion of a liquid within a liquid






37. A duct that carries urine from the kidneys to the bladder






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






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






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






41. The living matter of a cell - located between the cell membrane and the nucleus






42. A stalklike or elongated body part - usually pointed at one end






43. A short - stubby rod consisting of chromatin that is found in the nucleus of the cells; contains the genetic or hereditary component of cells (in the form of genes)






44. A network or mesh of fibrils - fibers or filaments






45. The cellular layer that covers external and internal surfaces






46. An anucleate red blood cell that contains hemoglobin






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






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






49. An enzyme that acts upon maltose and converts it into glucose






50. The kind of bond formed when two amino acid units are jointed end to end