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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 specialized structure that controls osmotic pressure by removing water from the cell






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






3. A bone of the upper arm






4. A space in the body






5. An accumulation of axons within the CNS that is white because it is fatty - myelin sheath






6. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes






7. A thin - transparent - eyelid-like membrane that opens and closes laterally across the cornea of many vertebrates (the third eyelid)






8. Fluid in the eye - found between the cornea and the lens






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






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






11. The passive - rhythmical expansion or dilation of the cavities of the heart (atria or ventricles) that allows these organs to fill with blood; preceded and followed by systole (contraction)






12. A nerve cell






13. A cell resulting from the fusion of gametes






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






15. A female sex hormone secreted by the follicle






16. An anterior pituitary hormone that stimulates the follicles in females and the function of the seminiferous tubules in males






17. Globular proteins produced by tissues that destroy or inactivate antigens






18. A blood vessel that carries blood back to the heart from the capillaries






19. The enzyme that acts upon lactose






20. The failure of some homologous pairs of chromosomes to separate following meiotic synapsis






21. A four-letter code made up of the DNA nitrogen bases A - T - G and C; each chromosome is made up of thousands of these bases






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






23. 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






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






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






26. The veins that carry blood from the digestive organs to the liver






27. The outermost bone of the middle ear (hammer)






28. Nonfunctional haploid cells created during meiosis in females; they have very little cytoplasm-most has gone into the functional egg cell






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






30. The most anterior portion of the small intestine of vertebrates - adjacent to the stomach; the continuation of the stomach into which the bile duct and pancreatic duct empty






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






32. The ability of an organism to contribute its alleles and therefore is phenotypic traits to future generations






33. Compounds in bile that aid in emulsification






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






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






36. Multicellular organism






37. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






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






39. The dorsal part of the hip girdle






40. Any cell capable of ingesting another cell






41. The living together of two organisms in an intimate relationship






42. The more muscular chamber(s) of the heart that pump blood to the lungs and to the rest of the body






43. 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






44. The uppermost portion of pistil upon which pollen grains alight






45. An enzyme that acts upon sucrose






46. The exchange of parts of homologous chromosomes during meiosis






47. A blood vessel that carries blood away from the heart






48. A plant that lives on another plant mensalistically






49. The individual differences of form among the members of a species






50. A mature ovary