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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. One of a pair of kidney-shaped cells that surround a stomate and regulate the size of the stomate in a leaf






2. A process of formation of ova






3. A tract of nerve fibers connecting the two cerebral hemispheres






4. Outgrowths of a root's epidermal cells that allow for greater surface area for absorption of nutrients and water






5. A neuron that picks up impulses from receptors and transmits them to the spinal cord






6. A colloidal system involving the dispersion of a liquid within a liquid






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






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






9. An embryonic structure that gives rise to the central nervous system






10. A bundle of nerve axons






11. Any cell that is not a reproductive cell






12. The dorsal part of the hip girdle






13. A ring-shaped muscle that is capable of closing a tubular opening by constriction






14. A female sex hormone secreted by the follicle






15. The inner part of the adrenal gland that secretes adrenalin






16. The diffusion of water through a semipermeable membrane - from an area of greater concentration to an area of lesser concentration






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






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






19. An organic catalyst and protein






20. A remnant of follicle after ovulation that secretes the hormone progesterone






21. A type of virus that can destroy bacteria by infecting - parasitizing and eventually killing them






22. A microscopic opening located in the epidermis of a leaf and formed by a pair of guard cells






23. The kind of bond formed when two amino acid units are jointed end to end






24. A category of taxonomic classification that is ranked above class and under kingdoms






25. A green pigment that performs essential functions as an electron donor and light "entrapper" in photosynthesis






26. A hormone that stimulates plant stem elongation






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






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






29. Any cell capable of ingesting another cell






30. The thigh bone of vertebrates






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






32. The transfer of a piece of chromosome to another chromosome






33. Any physical feature that prevents the ecological niches of different organisms from overlapping






34. The exchange of parts of homologous chromosomes during meiosis






35. A structure found between the cerebral hemispheres of vertebrates; secretes melatonin






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






37. A specialized structure that leads to the digestive tract of a developing organism and provides it with food during early development






38. Related to the sense of smell






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






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






41. Tissue formed by the differentiation of cambium that causes a growth in width of a plant system






42. Agent that induces mutations; typically carcinogenic






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






44. A tube connecting the ovaries and the uterus






45. The part of the hindbrain located in the brain stem






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






47. A kingdom of unicellular living organisms that are neither animals nor plants; includes some groups of algae - slime molds and protozoa






48. The association of physical - visceral response with an environmental stimulus with which it is not naturally associated; a learned response






49. The space between the mesodermal layers that forms the body cavity of some animal phyla






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