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






2. An organism that produces spores; a phase in the diploid-haploid life cycle that alternates with a gametophyte phase






3. The loss of all or part of a chromosome






4. Agent that induces mutations; typically carcinogenic






5. The haploid - sexual stage in the life cycle of plants






6. The production of a number of different species from a single ancestral species






7. The elimination of metabolic waster matter






8. The cell membrane






9. A substance that is acted upon by an enzyme






10. The coagulation of blood caused by the rupture of platelets and the interaction of fibrin - fibrinogen - thrombin - prothrombin and calcium ions






11. The innermost embryonic germ layer that gives rise to the lining of the alimentary canal and to the digestive and respiratory organs






12. Nonliving - as in the physical environment






13. The transformation of an immature animal into an adult; a change in the form of an organ or structure






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






15. The recycling of carbon from decaying organisms for use in future generations






16. Different relationships that are formed in proteins between the original sequence of amino acids and more complex three-dimensional compounds






17. A sugar composed of two combined monosaccharides






18. A cell that divides to form the polar body and the secondary oocyte






19. The navel






20. A bone of the upper arm






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






22. A hormone that regulates water reabsorption






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






24. An organism that requires oxygen for respiration and can live only in the presence of oxygen






25. 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






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






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






28. The contraction of the atria or ventricles of the heart






29. A network of membrane-enclosed spaces connected with the nuclear membrane; transports materials through the cell; can be soft or rough






30. Protein threads that form in the blood during clotting






31. Plant growth stimulated by light (stem: + - towards light; root: - - away from light)






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






33. Chemical groups attached to carbon skeletons that give compounds their functionality






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






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






36. In mitosis of higher plants - the structure that forms between the divided nuclei of the two daughter cells and eventually becomes the cell wall






37. The second filial generation; offspring resulting from the crossing of individuals of the F1 generation






38. A cell in the retina that is sensitive to weak light






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






40. One of the primary tissues of the embryo






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






42. The inner portion of the cytoplasm of a cell or the portion that surrounds the nucleus






43. The thin - bent part of the renal tubule that is the site of the counter-current flow and the sodium gradient






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






45. The ways in which organisms regulate their internal heat






46. The creation of certain strains of specific traits through control of breeding






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






48. The anaerobic respiration of carbohydrates






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






50. Movement of amoeba