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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 bundle of nerve axons






2. A cell that divides to form two secondary spermatocytes






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






4. A sex or reproductive cell that must fuse with another of the opposite type to form a zygote






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






6. A terrestrial habitat zone that is characterized by large tracts of coniferous forests - long and cold winters - and short summers






7. An organic cofactor required for enzyme activity






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






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






10. 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)






11. A hormone that ripens fruit and induces aging






12. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions






13. A metabolic stage between mitoses in which genetic material is reproduced






14. A process of photosynthesis in which water is split into H+ and OH-; the hydrogen ion is then joined to NADP






15. Organelles that serve as specialized containers for metabolic reactions






16. An organ centrally involved in the human digestive system






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






18. A lateral region of the forebrain






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






20. The sensory branch of each spinal nerve






21. An antipathogenic substance (e.g. - penicillin)






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






23. The biome located between the polar region and the tiaga






24. Unicellular organism with simple cell structure






25. A fatty sheath surrounding the axon of a neuron that aids in stimulus transmission; it is secreted by the Schwann cells






26. Pertaining to a subdivision of the autonomic nervous system of vertebrates






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






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






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






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






31. A progressive change from which a permanently more mature or advanced state results






32. Refers to protective covering






33. An embryonic structure that gives rise to the central nervous system






34. A reproductive cell






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






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






37. The intake of food from the environment into the alimentary canal






38. A plant growth hormone






39. The inner layer of an organ surrounded by the cortex






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






41. An organism that possesses one or more whiplike appendages called flagella






42. A neuron that picks up impulses from receptors and transmits them to the spinal cord






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






44. A mitotic stage in which nuclei reform and nuclear membrane reappears






45. The cavity in the mammalian ovary in which the egg ripens






46. Involuntary muscle






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






48. The outer layer of cerebral hemispheres in the forebrain - consisting of gray matter






49. The evaporation of water from leaves or other exposed surfaces of plants






50. A nerve fiber