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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 substance that prevents appreciable changes in pH in solutions to which small quantities of acids or bases are added






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






3. A tube one cell thick that carries blood from artery to vein; the site of material exchange between the blood and tissues of the body






4. A nuclear protein of chromosomes that stains readily






5. The elimination of metabolic waster matter






6. A duct that carries urine from the kidneys to the bladder






7. 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






8. One of the two strands that constitute a chromosome; chromatids are held together by the centromere






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






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






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






12. The cellular layer that covers external and internal surfaces






13. An organ that is not functional in an organism - but was functional at some period in its evolution






14. A flowering plant with simple dry fruit - characterized by nodes on their roots that contain nitrogen-fixing bacteria






15. The outermost - extra-embryonic membrane of reptiles and birds






16. Multicellular organism






17. The study of organisms in relation to their environment






18. Pertaining to a subdivision of the autonomic nervous system of vertebrates






19. The sac in the ovary in which the egg develops






20. Compounds in bile that aid in emulsification






21. The cavity between the lungs and the wall of the chest






22. A dense fluid within the chloroplast in which CO2 is converted into sugars in photosynthesis






23. A mutation in which a single nucleotide base is substituted for another nucleotide base - or an extra nucleotide base is added






24. A wall composed of cellulose that is external to the cell membrane in plants; it is primarily involved in support and in the maintenance of proper internal pressure






25. The first filial generation (first offspring)






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






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






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






29. An enlargement of the thyroid gland due to lack of iodine






30. The process by which environmental patterns or objects presented to a developing organism during a "critical period" of its growth is accepted as a permanent element of its behavior






31. A hormonal secretion of the adrenal cortex






32. Cycle in photosynthesis that reduces fixed carbon to carbohydrates through the addition of electrons ("dark cycle")






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






34. An organ that stores bile






35. Secreted by the anterior pituitary gland - this hormone stimulates the conversion of a follicle into the corpus luteum and the secretion of progesterone by the corpus luteum






36. Semen






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






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






39. The womb in which the fetus develops






40. An organism that produces spores; a phase in the diploid-haploid life cycle that alternates with a gametophyte phase






41. Blood vessels located between ascending and descending aortas that deliver blood to most of the upper body






42. Protective immunity to a disease in which the individual produces antibodies as a result of previous exposure to the antigen






43. The enzyme that acts upon lactose






44. A fat or oil






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






46. The science of classification of living things






47. A cell resulting from the fusion of gametes






48. One of the primary tissues of the embryo






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






50. Occurs when a segment of genetic material on a chromosome becomes reversed