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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 the primary tissues of the embryo






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






3. In mammals - the slitlike opening formed by the vocal folds in the larynx






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






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






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






7. A substance that is acted upon by an enzyme






8. The part of the nervous system that regulates the involuntary muscles - such as the walls of the alimentary canal; includes the parasympathetic and sympathetic nervous systems






9. Part of the nephron in the kidney; involved in excretion

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10. A process by which the cell membrane is invaginated to form a vesicle which contains extracellular medium






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






12. A grouping of neuron cell bodies that acts as a coordinating center






13. The part of the neuron that transmits impulses to the cell body






14. The enzyme released from the blood platelets in vertebrates during clotting






15. 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






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






17. One or two or more types of genes - each representing a particular trait; many alleles exist for a specific gene locus






18. The microspore of a seed plant






19. Describes cells that have a double set of chromosomes in homologous pairs (2n)






20. A kind of white blood cell in vertebrates that is characterized by a rounded nucleus; involved in the immune response






21. The recycling of nitrogen from decaying organism for use in future generations






22. A tube connecting the ovaries and the uterus






23. Structures in the testes that produce sperm and semen






24. A 12-carbon sugar that is formed by the union of two glucose units (a disaccharide)






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






26. An organism that possesses both the male and the female reproductive organs






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






28. The orientation of cells or organisms in relation to chemical stimuli; the growth or movement response of organisms to chemical stimuli






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






30. A compact linear organization of nerve tissues with ganglia in the CNS






31. An organism that does not require free oxygen in order to respire






32. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac






33. A bone of the upper arm






34. A plant that belongs to the class of seed plants in which the seeds are not enclosed in an ovary; includes the conifers






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






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






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






38. Cytoplasmic organelles that serve as sites of respiration; a rod-shaped body in the cytoplasm known to be the center of cellular respiration






39. The outermost embryonic germ layer that gives rise to the epidermis and the nervous system






40. The conversion of digested foods and other materials into forms usable by the body (i.e. - the conversion of amino acids into proteins)






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






42. Describes a fluid that has a higher osmotic pressure than another fluid it is compared to






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






44. A symbol that denotes the relative concentration of hydrogen ions in a solution






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






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






47. A network or mesh of fibrils - fibers or filaments






48. A metabolic stage between mitoses in which genetic material is reproduced






49. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species






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






Can you answer 50 questions in 15 minutes?



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