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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. Substance secreted by organisms that influences the behavior of other members of the same species






2. Organelles that serve as specialized containers for metabolic reactions






3. A plant that belongs to the class of seed plants in which the seeds are not enclosed in an ovary; includes the conifers






4. One of a group of compounds that is identical in a atomic composition - but different in structure and arrangement






5. A cell resulting from the fusion of gametes






6. A large class of arthropods - including crabs and lobsters






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






8. Protein threads that form in the blood during clotting






9. One of many tubules that absorb tissue fluid and return it to the bloodstream via the lymphatic system






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






11. 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






12. A mutation involving the addition or loss of nucleotides






13. A plant-eating animal






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






15. A kind of white blood cell in vertebrates that is characterized by a rounded nucleus; involved in the immune response






16. A space in the body






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






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






19. An animal phylum in which all members have a notochord - dorsal nerve cord and pharyngeal gill slits at some embryonic stage; includes the Cephalochordata and the Vertebrates






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






21. Describes cells (gametes) that have half the chromosome number typical of the species






22. Blood protein that is transformed to fibrin upon clotting






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






24. A mature ovary






25. A process by which the cell membrane is invaginated to form a vesicle which contains extracellular medium






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






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






28. The navel






29. The microspore of a seed plant






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






31. A nuclear protein of chromosomes that stains readily






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






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






34. A bone of the upper arm






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






36. A marine biome typical of the open seas






37. An enlargement of the thyroid gland due to lack of iodine






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






39. The removal of an amino group from an organism - particularly from an amino acid






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






41. A plant that has two seed leaves or cotyledons






42. An endocrine gland of vertebrates - usually paired - and located near or within the thyroid that secretes parathormone - which controls the metabolism of calcium






43. The female gamete; it is nonmotile - large in comparison to male gametes - and stores nutrients






44. The central tissue of a stem - used for food storage






45. In mammals - the slitlike opening formed by the vocal folds in the larynx






46. The ways in which organisms regulate their internal heat






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






48. The pressure exerted by the contents of a cell against the cell membrane or cell wall






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






50. The science of classification of living things