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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 plant that has a single cotyledon or seed-leaf






2. A constituent of the plasma of the blood of vertebrates; it is converted to thrombin by thrombokinase in the presence of calcium ions - thus contributing to the clotting of blood






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






4. The outermost surface of an organism






5. A thyroid deficiency that results in stunted growth and feeblemindedness






6. Different relationships that are formed in proteins between the original sequence of amino acids and more complex three-dimensional compounds






7. Plant tissue consisting of large thin-walled cells for storage






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






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






10. The process of forming the sperm cells from primary spermatocytes






11. A symbiotic relationship from which both organisms involved derive some benefit






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






13. Fluid skeleton of annelids






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






15. A complex carrier mechanism located on the inside of the inner mitochondrial membrane of the cell; releases energy and is used to form ATP






16. Fluid excreted by the kidney containing urea - water - salts - etc






17. Any physical feature that prevents the ecological niches of different organisms from overlapping






18. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait






19. A type of nuclear division that is characterized by complex chromosomal movement and the exact duplication of chromosomes; occurs in somatic cells






20. Involuntary muscle






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






22. The state in which two genetic traits are fully expressed and neither dominates






23. The enzyme that acts upon lactose






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






25. A microscopic opening located in the epidermis of a leaf and formed by a pair of guard cells






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






27. One of the primary tissues of the embryo






28. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter






29. A hormone of the thyroid that regulates basal metabolism






30. A reproductive cell






31. A nerve cell






32. The outermost bone of the middle ear (hammer)






33. A green pigment that performs essential functions as an electron donor and light "entrapper" in photosynthesis






34. The ability of certain animals to regrow missing body parts






35. An organic cofactor required for enzyme activity






36. The process of breaking down large organic molecules into smaller ones






37. The dorsal part of the hip girdle






38. An opening in the eye whose size is regulated by the iris






39. Bacteria that are rod shaped






40. A kind of microorganism that is between a virus and a bacterium; parasitic within the cells of insects and ticks






41. Protein threads that form in the blood during clotting






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






43. A hormone that stimulates plant stem elongation






44. A disease-causing organism






45. The area of medulla that regulates the rate of breathing






46. Pertaining to a subdivision of the autonomic nervous system






47. 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)






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






49. An organ centrally involved in the human digestive system






50. 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)