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






2. The outer layer of cerebral hemispheres in the forebrain - consisting of gray matter






3. An "emergency" hormone stimulated by anger or fear; increase blood pressure and heart rate in order to supply the emergency needs of the muscles






4. Adrenaline






5. An animal with a constant body temperature






6. The enzyme released from the blood platelets in vertebrates during clotting






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






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






9. 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






10. The male gonads that produce sperm and male hormones






11. The thigh bone of vertebrates






12. The outer - transparent layer of the eye






13. A plant growth hormone






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






15. The description of a plant life cycle that consists of a diploid - asexual - sporophyte generation and a haploid - sexual - gametrophyte generation






16. An organ that stores bile






17. One-thousandth of a millimeter; a unit of microscopic length






18. A hormone of the thyroid that regulates basal metabolism






19. The veins that carry blood from the digestive organs to the liver






20. The swelling at the end of an axon






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






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






23. Unicellular organism with simple cell structure






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






25. Describes an individual that has the same gene for the same trait on each homologous chromosome






26. Adenosine diphosphate (ADP) and adenosine triphosphate (ATP) - which are energy storage molecules






27. The failure of some homologous pairs of chromosomes to separate following meiotic synapsis






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






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






30. A form of anaerobic respiration found in yeast and bacteria






31. The cavity in the mammalian ovary in which the egg ripens






32. 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






33. An underground stem






34. A unit of heat; the amount of heat required to raise the temperature of one gram of water by one degree centigrade






35. An abbreviation of ribonucleic acid - a nucleic acid in which the sugar is ribose; a product of DNA transcription that serves to control certain cell activities






36. The outermost surface of an organism






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






38. The cell membrane






39. The pigment in rod cells that causes light sensitivity






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






41. Movement of amoeba






42. A pyrimidine found in RNA (but not DNA); pairs with DNA adenine






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






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






45. The coiled part of the sperm duct - adjacent to the testes in mammals






46. An endocrine gland located in the neck that produces thyroxin






47. A nitrogen base such as cytosine - thymine and uracil; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






48. The triploid tissue in some seeds that contains stored food and is formed by the union of one sperm nucleus with two nuclei of the female's gametophyte






49. A plant-eating animal






50. Vascular tissue of the plant that aids in support and carries water