Test your basic knowledge |

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 carbohydrate that is composed of many monosaccharide units joined together






2. The most anterior portion of the small intestine of vertebrates - adjacent to the stomach; the continuation of the stomach into which the bile duct and pancreatic duct empty






3. The cell body of a neuron






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






5. Cells which in the female are located between the ovarian follicles and in the male are located between the seminiferous tubules of the testes






6. The large intestine






7. A five carbon sugar that has one oxygen atom less than ribose; a component of DNA






8. An organism that utilizes the energy of inorganic materials such as water and carbon dioxide or the sun to manufacture organic materials






9. An organism that obtains its nutrients from dead organisms






10. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes






11. A nuclear protein of chromosomes that stains readily






12. A decimal fraction that represents the presence of an allele for all members of a population that have a particular gene locus






13. The small granular body within the centrosome to which the spindle fibers attach






14. Pertaining to a subdivision of the autonomic nervous system






15. The outermost bone of the middle ear (hammer)






16. A specialized structure that carries out particular functions for eukaryotic cells






17. A cell in the retina that is sensitive to weak light






18. Unicellular organism with simple cell structure






19. The haploid - sexual stage in the life cycle of plants






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






21. The veins that carry blood from the digestive organs to the liver






22. A compact linear organization of nerve tissues with ganglia in the CNS






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






24. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species






25. An organic molecule consisting of joined phosphate - 5-carbon sugar (deoxyribose or ribose) - and a purine or a pyrimidine (adenine - guanine - uracil - thymine or cytosine)






26. Random evolutionary changes in the genetic makeup of a population






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






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






29. The process by which environmental patterns or objects presented to a developing organism during a "critical period" of its growth is accepted as a permanent element of its behavior






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






31. The external opening of the trachea in insects






32. Cycle in photosynthesis that reduces fixed carbon to carbohydrates through the addition of electrons ("dark cycle")






33. Protective immunity to a disease in which the individual produces antibodies as a result of previous exposure to the antigen






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






35. A mature ovary






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






37. A chemical action that releases energy from glucose to form ATP






38. An animal with a constant body temperature






39. The ways in which organisms regulate their internal heat






40. Passively floating or drifting flora and fauna of a body of water; consists mainly of microscopic organisms






41. A substance that participates in the clotting of blood in vertebrates






42. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter






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






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






45. A form of anaerobic respiration found in yeast and bacteria






46. A large molecule that is composed of many similar molecule units






47. A nerve cell






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






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






50. A ductless gland that secretes hormones directly into the bloodstream