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






2. The class of free-living flatworms






3. The site of most digestion of nutrients and absorption of digested nutrients






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






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






6. A relationship in which one organism benefits at the expense of another






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






8. The colored part of the eye that is capable of contracting and regulating the size of the pupils






9. Related to the sense of smell






10. A flexible - supportive rod running longitudinally through the dorsum ventral to the nerve cord; found in lower chordates and in the embryos of vertebrates






11. Deoxyribonucleic acid; found in cell nucleus - its basic unit is the nucleotide; contains coded genetic information; can replicate on the basis of heredity






12. A typical coelenterate individual with a hollow tubular body whose outer ectoderm is separated from its inner ectoderm by mesoglea






13. The thigh bone of vertebrates






14. The intake of fluid droplets into a cell






15. A tube connecting the ovaries and the uterus






16. The instance of polymorphism in which there is a difference of form between two members of a species - as between males and females






17. Occurs when certain traits are determined by genes on sex chromosomes






18. The science of classification of living things






19. Compounds in bile that aid in emulsification






20. A flesh-eating animal; a holotrophic animal that subsists on other animals or parts of animals






21. A lateral region of the forebrain






22. A multidirectional sensory system of lower animals such as the hydra - consisting of nerve fibers spread throughout the ectoderm






23. A habitat zone - such as desert - grassland or tundra






24. A four-letter code made up of the DNA nitrogen bases A - T - G and C; each chromosome is made up of thousands of these bases






25. A condition in which an organism may have a multiple of the normal number of chromosomes (4n - 6n - etc)






26. Unicellular organism with simple cell structure






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






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






29. 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)






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






31. A cell resulting from the fusion of gametes






32. Describes a fluid that has a higher osmotic pressure than another fluid it is compared to






33. The extraembyonic membrane of birds - reptiles and mammals that serves as an area of gaseous exchange and as a site for the storage of noxious excretion products






34. The kind of bond formed when two amino acid units are jointed end to end






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






36. A substance that is acted upon by an enzyme






37. The junction or gap between the axon terminal of one neuron and the dendrites of another neuron






38. The small granular body within the centrosome to which the spindle fibers attach






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






40. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage






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






42. An enzyme that acts upon sucrose






43. One of a class of organic compounds that contains a molecular skeleton of four fused rings of carbon






44. The study of organisms in relation to their environment






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






46. A major lymphatic that empties lymph into a vein in the neck






47. A compact linear organization of nerve tissues with ganglia in the CNS






48. An organic cofactor required for enzyme activity






49. 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)






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