Test your basic knowledge |

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 network or mesh of fibrils - fibers or filaments






2. A terrestrial habitat zone that is characterized by large tracts of coniferous forests - long and cold winters - and short summers






3. A fatty sheath surrounding the axon of a neuron that aids in stimulus transmission; it is secreted by the Schwann cells






4. The part of the flower that bears the female gametophyte






5. A flowering plant; a plant of the class Angiospermae that produces seeds enclosed in an ovary and is characterized by the possession of fruits and flowers






6. The portion of alimentary canal connecting the pharynx and the stomach






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






8. An organism that is heterozygous for two different traits






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






10. A pyrimidine component of nucleic acids and nucleotides; pairs with adenine in DNA






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






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






13. The primary germ layer - developed from the lip of the blastopore - that gives rise to the skeleton - the circulatory system and many organs and tissues between the epidermis and the epithelium






14. A process by which the vesicle in the cell fuses with the cell membrane and releases its contents to the outside






15. An animal with a constant body temperature






16. A habitat zone - such as desert - grassland or tundra






17. The innermost tissue layer of the eyeball that contains light-sensitive receptor cells






18. Technology that allows for manipulation of genetic material






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






20. Three membranes that envelop the brain and spinal cord (pia mater - dura mater and arachnoid)






21. An organelle in the cytoplasm that contains RNA; serves as the site of protein synthesis






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






23. An organic compound to which hydrogen and oxygen are attached; the hydrogen and oxygen are in a 2:1 ratio; examples include sugars - starches and cellulose






24. A transmitter substance released from the axons of nerve cells at the synapse






25. 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






26. Fluid excreted by the kidney containing urea - water - salts - etc






27. 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






28. The dorsal part of the hip girdle






29. Pertaining to a type of gland that releases its secretion through a duct






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






31. The biome located between the polar region and the tiaga






32. An antipathogenic substance (e.g. - penicillin)






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






34. A mitotic or meiotic stage in which the chromosomes become visible and during which the spindle fibers form; synapsis takes place during the first meiotic prophase






35. The study of all living processes - activities and functions






36. The physical appearance or makeup of an individual - as opposed to its genetic makeup






37. A decimal fraction that represents the presence of an allele for all members of a population that have a particular gene locus






38. The pigment in rod cells that causes light sensitivity






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






40. An association of homologous chromosomes during the first meiotic division






41. Refers to protective covering






42. One of a group of compounds that is identical in a atomic composition - but different in structure and arrangement






43. A reproductive cell






44. The largest artery; carries blood from the left ventricle






45. A hoofed animal






46. A disease-causing organism






47. The organelle that provides mechanical support and carries out motility functions for the cell






48. A stalklike or elongated body part - usually pointed at one end






49. An emulsifying agent secreted by the liver






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