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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. An offspring that is heterozygous for one or more gene pairs






2. One of a group of compounds that is identical in a atomic composition - but different in structure and arrangement






3. The description of a plant life cycle that consists of a diploid - asexual - sporophyte generation and a haploid - sexual - gametrophyte generation






4. The junction or gap between the axon terminal of one neuron and the dendrites of another neuron






5. The inner part of the adrenal gland that secretes adrenalin






6. A mucus-secreting membrane






7. Multicellular organism






8. An air duct from the middle ear to the throat that equalizes external and internal air pressure






9. Anaerobic respiration the yields 2 molecules of ATP - lactic acid - ethyl alcohol and carbon dioxide or some similar compound via the glycolytic pathway






10. One of the paired lateral divisions of the forebrain






11. The ways in which organisms regulate their supply of water






12. A microscopic - whiplike filament that serves as a locomotor structure in flagellate cells






13. In plants - an area of undifferentiated tissue covered by embryonic leaves






14. The elimination of metabolic waster matter






15. 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)






16. The organelle that provides mechanical support and carries out motility functions for the cell






17. Outgrowths of a root's epidermal cells that allow for greater surface area for absorption of nutrients and water






18. A structure in animal cells containing centrioles from which the spindle fibers develop






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






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






21. A kingdom of unicellular living organisms that are neither animals nor plants; includes some groups of algae - slime molds and protozoa






22. A constituent of the plasma of the blood of vertebrates; it is converted to thrombin by thrombokinase in the presence of calcium ions - thus contributing to the clotting of blood






23. The second filial generation; offspring resulting from the crossing of individuals of the F1 generation






24. The final stages of protein synthesis in which the genetic code of nucleotide sequences is translated into a sequences of amino acids






25. The womb in which the fetus develops






26. Describes cells that have a double set of chromosomes in homologous pairs (2n)






27. Organism that consumes food from outside itself instead of producing it






28. The pressure exerted by the contents of a cell against the cell membrane or cell wall






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






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






31. An organic catalyst and protein






32. An organelle in the cytoplasm that contains RNA; serves as the site of protein synthesis






33. A fat or oil






34. A flowering plant; a plant of the class Angiospermae that produces seeds enclosed in an ovary and is characterized by the possession of fruits and flowers






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






36. Fluid-filled structures in the inner ear that are associated with the sense of balance






37. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






38. xylem that is no longer being used






39. A transmitter substance released from the axons of nerve cells at the synapse






40. Fluid skeleton of annelids






41. The functional role and position of an organism in an ecosystem; embodies every aspect of the organism's existence






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






43. A perforation leading from the pharynx to the outside environment that is a characteristic of chordates at one stage of their development






44. The reproductive organ that produces sex cells






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






46. A foreign protein that stimulates the production of antibodies when introduced into the body of an organism






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






48. The diffusion of water through a semipermeable membrane - from an area of greater concentration to an area of lesser concentration






49. One or two or more types of genes - each representing a particular trait; many alleles exist for a specific gene locus






50. An organic cofactor required for enzyme activity