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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 part of the body of an animal that is between the neck or head and the abdomen






2. An organic compound to which hydrogen and oxygen are attached; the hydrogen and oxygen are in a 2:1 ratio; examples include sugars - starches and cellulose






3. The external opening of the trachea in insects






4. The second filial generation; offspring resulting from the crossing of individuals of the F1 generation






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






6. 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)






7. Cytoplasmic organelles that serve as sites of respiration; a rod-shaped body in the cytoplasm known to be the center of cellular respiration






8. A plant-eating animal






9. Changes in genes that are inherited






10. An accumulation of axons within the CNS that is white because it is fatty - myelin sheath






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






12. A bundle of nerve axons






13. A tube connecting the ovaries and the uterus






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






15. The phylum to which segmented worms belong






16. An organic cofactor required for enzyme activity






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






18. A microscopic - whiplike filament that serves as a locomotor structure in flagellate cells






19. An organelle in the cytoplasm that contains RNA; serves as the site of protein synthesis






20. An underground stem






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






22. One of a pair of kidney-shaped cells that surround a stomate and regulate the size of the stomate in a leaf






23. An organ that is not functional in an organism - but was functional at some period in its evolution






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






25. The orderly process by which one biotic community replaces another until a climax community is established






26. A network of membrane-enclosed spaces connected with the nuclear membrane; transports materials through the cell; can be soft or rough






27. An organic catalyst and protein






28. 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






29. A short - stubby rod consisting of chromatin that is found in the nucleus of the cells; contains the genetic or hereditary component of cells (in the form of genes)






30. The pigment in rod cells that causes light sensitivity






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






32. A nerve cell






33. Plant growth stimulated by light (stem: + - towards light; root: - - away from light)






34. An undifferentiated - growing region of a plant that is constantly undergoing cell division and differentiation






35. A blood clot that is formed within a blood vessel






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






37. Any cell that is not a reproductive cell






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






39. The fist stage of protein synthesis - in which the information coded in the DNA base is transcribed onto a strand of mRNA






40. Blood protein that is transformed to fibrin upon clotting






41. The removal of hydrogen or electrons from a compound or addition of oxygen; half of a redox (oxidation or reduction) process






42. The recycling of nitrogen from decaying organism for use in future generations






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






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






45. A hormone that ripens fruit and induces aging






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






47. A fluid-filled sensory apparatus that aids balance and hearing






48. The womb in which the fetus develops






49. An ion with a positive charge - or an ion that migrates towards the cathode (negative electrode) in an electric field






50. Multicellular organism







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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