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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 pouched mammal - such as the kangaroo or opossum






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






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






4. A family tree depicting the inheritance of a particular genetic trait over several generations






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






6. 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






7. An organism that obtains its nutrients from dead organisms






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






9. In mitosis of higher plants - the structure that forms between the divided nuclei of the two daughter cells and eventually becomes the cell wall






10. The ability of an organism to contribute its alleles and therefore is phenotypic traits to future generations






11. A marine biome; a region on the continental shelf that contains an ocean area with depths of up to 600 ft






12. A structure that extends from the trunk of an organism and is capable of active movements






13. Relating to the lung






14. The mammalian oviduct that leads from the ovaries to the uterus






15. Comprises somatic and autonomic nervous systems; consists of cranial nerves and spinal nerves






16. A dominant allele suppresses the expression of the other member of an allele pair when both members are present






17. A substance that is acted upon by an enzyme






18. A stage of embryonic development characterized by the differentiation of the cells into the ectoderm and endoderm germ layers and by the formation of the archenteron






19. One-thousandth of a millimeter; a unit of microscopic length






20. A hormone that ripens fruit and induces aging






21. 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






22. Tissue formed by the differentiation of cambium that causes a growth in width of a plant system






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






24. Related to the sense of smell






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






26. In mammals - a flap of tissue above the glottis; it folds back over the glottis in swallowing to close the air passages of the lungs; contains elastic cartilage






27. The largest portion of the human brain; it is believed to be the center of intelligence - conscious thought and sensation






28. An anucleate red blood cell that contains hemoglobin






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






30. The transfer of a piece of chromosome to another chromosome






31. An organic catalyst and protein






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






33. An abbreviation of ribonucleic acid - a nucleic acid in which the sugar is ribose; a product of DNA transcription that serves to control certain cell activities






34. A ring-shaped muscle that is capable of closing a tubular opening by constriction






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






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






37. The part of the flower that produces pollen






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






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






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






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






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






43. The cellular layer that covers external and internal surfaces






44. The colored part of the eye that is capable of contracting and regulating the size of the pupils






45. Vascular tissue of the plant that aids in support and carries water






46. An association of homologous chromosomes during the first meiotic division






47. A mass of cells that have similar structures and perform similar functions






48. A cell resulting from the fusion of gametes






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






50. A category of taxonomic classification that is ranked above class and under kingdoms