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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. Agent that induces mutations; typically carcinogenic






2. A condition in which an organism may have a multiple of the normal number of chromosomes (4n - 6n - etc)






3. The portion of a DNA molecule that serves as a unit of heredity; found on the chromosome






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






5. The liquid part of blood






6. A mall sex hormone (e.g. - testosterone)






7. An organ centrally involved in the human digestive system






8. A jellyfish






9. A process of cell division whereby each daughter cell receives only one set of chromosomes; the formation of gametes






10. An organelle that contains enzymes that aid in intracellular digestion






11. Occurs when certain traits are determined by genes on sex chromosomes






12. Cells which in the female are located between the ovarian follicles and in the male are located between the seminiferous tubules of the testes






13. A plant that has a single cotyledon or seed-leaf






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






15. The pigment in rod cells that causes light sensitivity






16. The fluid that remains after fibrinogen is removed from the blood plasma of vertebrates






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






18. A flexible - supportive rod running longitudinally through the dorsum ventral to the nerve cord; found in lower chordates and in the embryos of vertebrates






19. The coiled part of the sperm duct - adjacent to the testes in mammals






20. An offspring that is heterozygous for one or more gene pairs






21. The law by which genes on different chromosomes are inherited independently of each other






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






23. The intake of fluid droplets into a cell






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






25. A tube connecting the ovaries and the uterus






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






27. A "seed leaf"; responsible for food digestion and storage in plant embryo






28. A constituent of the plasma of the blood of vertebrates; it is converted to thrombin by thrombokinase in the presence of calcium ions - thus contributing to the clotting of blood






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






30. Hormone active in osmoregulation; a mineral corticoid produced by the adrenal cortex; stimulates reabsorption of Na+ and secretion of K+






31. Pertaining to a restricted locality; ecologically - occurring only in one particular region






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






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






34. The site of most digestion of nutrients and absorption of digested nutrients






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






36. A fat-digesting hormone






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






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






39. The anaerobic respiration of carbohydrates






40. The sensory organ of the inner ear of mammals; it is coiled and contains the organ of corti






41. Substance secreted by organisms that influences the behavior of other members of the same species






42. Relating to the lung






43. A perforation leading from the pharynx to the outside environment that is a characteristic of chordates at one stage of their development






44. A purine (nitrogenous base) component of nucleotides and nucleic acids; links with cytosine in DNA






45. The final stages of protein synthesis in which the genetic code of nucleotide sequences is translated into a sequences of amino acids






46. 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






47. A reproductive cell






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






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






50. Describes an individual that possesses two contrasting alleles for a given trait