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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 blood vessel that carries blood back to the heart from the capillaries






2. Nonliving - as in the physical environment






3. A nitrogen base that is present in nucleotides and nucleic acids; it is paired with guanine






4. A group of populations that can interbreed






5. The pigment in rod cells that causes light sensitivity






6. Changes in genes that are inherited






7. A dominant allele suppresses the expression of the other member of an allele pair when both members are present






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






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






10. An organism that must get its inorganic and organic raw materials from the environment; a consumer






11. In taxonomy - a classification between species and family






12. The haploid - sexual stage in the life cycle of plants






13. A process of photosynthesis in which water is split into H+ and OH-; the hydrogen ion is then joined to NADP






14. The stable - biotic part of the ecosystem in which populations exist in balance with each other and with the environment






15. The innermost embryonic germ layer that gives rise to the lining of the alimentary canal and to the digestive and respiratory organs






16. 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






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






18. A digestive enzyme of the saliva that turns starch into maltose (salivary amylase)






19. Undifferentiated tissue in the stem of a plant that aids growth in width






20. An abbreviation of nicotinamide-adenine-dinucleotide - also called DPN; a respiratory oxidation-reduction molecule






21. A section of the posterior forebrain associated with the pituitary gland






22. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions






23. A substance that is acted upon by an enzyme






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






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






26. The phylum of sponges






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






28. Laws of classical genetics established through Mendel's experiments with peas






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






30. A change from a diploid nucleus to a haploid nucleus - as in meiosis






31. The colored part of the eye that is capable of contracting and regulating the size of the pupils






32. A process by which the cytoplasm and the organelles of the cell divide; the final stage of mitosis






33. The mammalian oviduct that leads from the ovaries to the uterus






34. The inner portion of the cytoplasm of a cell or the portion that surrounds the nucleus






35. A fat-digesting hormone






36. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage






37. A female sex hormone secreted by the follicle






38. The sensory branch of each spinal nerve






39. An organelle that regulates cell functions and contains the genetic material of the cell






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






41. One of the paired lateral divisions of the forebrain






42. Fluid skeleton of annelids






43. A lymph tubule located in the villus that absorbs fatty acids






44. An air duct from the middle ear to the throat that equalizes external and internal air pressure






45. The fusion of sperm and the egg to produce a zygote






46. A network of capillaries in the Bowman's capsules of the kidney






47. A microscopic - whiplike filament that serves as a locomotor structure in flagellate cells






48. Degree of penetrability - as in membranes that allow given substances to pass through; the ability to penetrate






49. The womb in which the fetus develops






50. An ion with a positive charge - or an ion that migrates towards the cathode (negative electrode) in an electric field