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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. The living together of two organisms in an intimate relationship






2. An enzyme from the pancreas that digests proteins in the small intestine






3. A structure found between the cerebral hemispheres of vertebrates; secretes melatonin






4. Pertaining to a restricted locality; ecologically - occurring only in one particular region






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






6. A nerve fiber






7. Pertaining to the head






8. The study of form and structure






9. An air-conducting tube






10. A sugar composed of two combined monosaccharides






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






12. An emulsifying agent secreted by the liver






13. Hormone active in osmoregulation; a mineral corticoid produced by the adrenal cortex; stimulates reabsorption of Na+ and secretion of K+






14. Compounds in bile that aid in emulsification






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






16. A cell that divides to form two secondary spermatocytes






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






18. The more muscular chamber(s) of the heart that pump blood to the lungs and to the rest of the body






19. The sensory organ of the inner ear of mammals; it is coiled and contains the organ of corti






20. An organism that produces spores; a phase in the diploid-haploid life cycle that alternates with a gametophyte phase






21. 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






22. A network or mesh of fibrils - fibers or filaments






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






24. A group of populations that can interbreed






25. A chemical messenger that is secreted by one part of the body and carried by the blood to affect another part of the body - usually a muscle or gland






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






27. A unit of heat; the amount of heat required to raise the temperature of one gram of water by one degree centigrade






28. The outer - transparent layer of the eye






29. Describes arthropods and other animals whose skeletal or supporting structures are outside the skin






30. A process of asexual reproduction in which the offspring develop from an outgrowth of the plant or animal






31. A fat-digesting hormone






32. The phylum of sponges






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






34. The loss of all or part of a chromosome






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






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






37. Multicellular organism






38. A white or colorless - amorphous - horny substance that forms part of the outer integument of insects - crustaceans and some other invertebrates; it also occurs in certain fungi






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






40. Globular proteins produced by tissues that destroy or inactivate antigens






41. 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






42. Asexual reproduction; in this process - the parent organism splits into two equal daughter cells






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






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






45. The womb in which the fetus develops






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






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






48. Fluid in the eye - found between the cornea and the lens






49. A structure that arises during mitosis and helps separate the chromosomes; composed of tubulin






50. 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)