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






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






3. The microspore of a seed plant






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






5. 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






6. A nerve fiber






7. A plant that has a single cotyledon or seed-leaf






8. An anucleate red blood cell that contains hemoglobin






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






10. A stage of embryonic development in which the embryo consists of a hollow ball of cells






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






12. The genetic makeup of an organism without regard to physical appearance






13. Semen






14. A grouping of neuron cell bodies that acts as a coordinating center






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






16. A hydrogen carrier containing iron that functions in many cellular processes - including respiration






17. The production of a number of different species from a single ancestral species






18. Daily cycles of behavior






19. Requiring free oxygen from the atmosphere for normal activity and respiration






20. Cytoplasmic bodies within a plant cell that are often pigmented






21. The elimination of metabolic waster matter






22. The ability to respond to a stimulus






23. A tract of nerve fibers connecting the two cerebral hemispheres






24. A group of life-maintaining processes that includes nutrition - respiration (the production of usable energy) and the synthesis and degradation of biochemical substances






25. A jellyfish






26. Pertaining to a subdivision of the autonomic nervous system






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






28. The cavity between the lungs and the wall of the chest






29. The part of the flower that produces pollen






30. The failure of some homologous pairs of chromosomes to separate following meiotic synapsis






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






32. Describes an organism that lives symbiotically with a host; this host neither benefits nor suffers from the association






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






34. 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






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






36. The enzyme that acts upon lactose






37. Protein threads that form in the blood during clotting






38. Describes an individual that possesses two contrasting alleles for a given trait






39. Structures in the testes that produce sperm and semen






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






41. Three membranes that envelop the brain and spinal cord (pia mater - dura mater and arachnoid)






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






43. A symbol that denotes the relative concentration of hydrogen ions in a solution






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






45. An abbreviation of nicotinamide-adenine-dinucleotide - also called DPN; a respiratory oxidation-reduction molecule






46. An air sac in the lung; the site of respiratory exchange - involving diffusion of oxygen and carbon dioxide between the air in the alveolus and the blood in the capillaries






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






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






49. A mall sex hormone (e.g. - testosterone)






50. A hormone that ripens fruit and induces aging