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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 hydrogen carrier containing iron that functions in many cellular processes - including respiration






2. A substance that is acted upon by an enzyme






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






4. 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






5. The phylum to which jointed-legged invertebrates belong - including insects - arachnids and crustaceans






6. Usually referred to as ACTH and secreted by the anterior lobe of the pituitary gland; stimulates the adrenal cortex to produce its characteristic hormones






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






8. The process by which carbohydrates are formed through chemical energy; found in bacteria






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






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






11. A space in the body






12. The portion of seed plant embryo above the cotyledon






13. A protein compound containing iron that is found in red blood cells






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






15. Organism that produces its own food; first stage in the food chain






16. The individual differences of form among the members of a species






17. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






18. Relating to the lung






19. The part of the nervous system that regulates the involuntary muscles - such as the walls of the alimentary canal; includes the parasympathetic and sympathetic nervous systems






20. An invertebrate animal phylum in which animals possess a single alimentary opening and tentacles with stinging cells






21. A tube connecting the ovaries and the uterus






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






23. An antigen in blood; can cause erythroblastosis fetalis when the mother is Rh- and the fetus is Rh+






24. A membrane that envelopes the nucleus and separates it from the cytoplasm; present in eukaryotes






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






26. The physical appearance or makeup of an individual - as opposed to its genetic makeup






27. A blood vessel that carries blood back to the heart from the capillaries






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






29. The anaerobic respiration of carbohydrates






30. An organism that obtains its nutrients from dead organisms






31. The cellular layer that covers external and internal surfaces






32. The tenth cranial nerve that innervates digestive organs - heart and other areas






33. The loss of all or part of a chromosome






34. A stomach enzyme that partially digests proteins






35. Blood protein that is transformed to fibrin upon clotting






36. A disease-causing organism






37. xylem that is no longer being used






38. The hormone secreted by the corpus luteum of vertebrates and the placenta of mammals; its function is to maintain the endometrium






39. Three membranes that envelop the brain and spinal cord (pia mater - dura mater and arachnoid)






40. A small projection in the walls of the small intestine that increases the surface area available for absorption






41. The basal branch of each spinal nerve; carries motor neurons






42. An organism that requires oxygen for respiration and can live only in the presence of oxygen






43. A specialized structure that controls osmotic pressure by removing water from the cell






44. Nonfunctional haploid cells created during meiosis in females; they have very little cytoplasm-most has gone into the functional egg cell






45. The genetic makeup of an organism without regard to physical appearance






46. The evaporation of water from leaves or other exposed surfaces of plants






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






48. Any movement or growth of a living organism in response to the force of gravity






49. The system of naming an organism by its genus and species name






50. Describes an individual that possesses two contrasting alleles for a given trait