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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 transfer of a piece of chromosome to another chromosome






2. The outer - transparent layer of the eye






3. The recycling of carbon from decaying organisms for use in future generations






4. Nonliving - as in the physical environment






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






6. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes






7. A group of life-maintaining processes that includes nutrition - respiration (the production of usable energy) and the synthesis and degradation of biochemical substances






8. The pressure exerted by the contents of a cell against the cell membrane or cell wall






9. The posterior part of the brain that controls the rate of breathing and other autonomic functions






10. A stage of embryonic development characterized by the differentiation of the cells into the ectoderm and endoderm germ layers and by the formation of the archenteron






11. A fat or oil






12. A bony or chitinous case or shield covering the back or part of the back of an animal (shell of a crab)






13. A mall sex hormone (e.g. - testosterone)






14. An organic catalyst and protein






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






16. An animal with a constant body temperature






17. A nerve fiber






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






19. Living or active in the absence of free oxygen; pertaining to respiration that is independent of oxygen






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






21. Small - disc-shaped bodies in the blood that play a chief role in coagulation






22. Random evolutionary changes in the genetic makeup of a population






23. The microspore of a seed plant






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






25. A gland composed of two parts - anterior and posterior - each with its own secretions; called the "master gland" because its hormones stimulate secretions by other glands






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






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






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






29. The portion of a DNA molecule that serves as a unit of heredity; found on the chromosome






30. Partially digested food in the stomach






31. A hoofed animal






32. A process of asexual reproduction in which the offspring develop from an outgrowth of the plant or animal






33. The portion of alimentary canal in which some protein digestion occurs






34. The living together of two organisms in an intimate relationship






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






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






37. Pertains to a gene or characteristic that is masked when a dominant allele is present






38. A space in the cytoplasm of a cell that contains fluid






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






40. 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






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






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






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






44. A bundle of nerve axons






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






46. Semen






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






48. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male






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






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