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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 group of life-maintaining processes that includes nutrition - respiration (the production of usable energy) and the synthesis and degradation of biochemical substances






2. 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






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






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






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






6. The transfer of a piece of chromosome to another chromosome






7. The process of breaking down large organic molecules into smaller ones






8. A bony or chitinous case or shield covering the back or part of the back of an animal (shell of a crab)






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






10. A process of asexual reproduction in which the offspring develop from an outgrowth of the plant or animal






11. A nerve fiber






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






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






14. The transfer of pollen to the micropyle or to a receptive surface that is associated with an ovule (such as stigma)






15. A structure found between the cerebral hemispheres of vertebrates; secretes melatonin






16. A form of anaerobic respiration found in yeast and bacteria






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






18. Compounds in bile that aid in emulsification






19. A waxy protective layer secreted by the outer surface of plants - insects - etcetera






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






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






22. The phylum to which jointed-legged invertebrates belong - including insects - arachnids and crustaceans






23. Unicellular organism with simple cell structure






24. The smallest particle that is capable of carrying out photosynthesis; the functional unit of a chloroplast






25. The part of the flower that produces pollen






26. The cell body of a neuron






27. The exchange of parts of homologous chromosomes during meiosis






28. The largest portion of the human brain; it is believed to be the center of intelligence - conscious thought and sensation






29. An organ that stores urine temporarily before it is excreted






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






31. The state in which two genetic traits are fully expressed and neither dominates






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






33. The portion of alimentary canal in which some protein digestion occurs






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






35. Describes a fluid that has the same osmotic pressure as a fluid it is compared to






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






37. A white or colorless - amorphous - horny substance that forms part of the outer integument of insects - crustaceans and some other invertebrates; it also occurs in certain fungi






38. The extraembyonic membrane of birds - reptiles and mammals that serves as an area of gaseous exchange and as a site for the storage of noxious excretion products






39. A dominant allele suppresses the expression of the other member of an allele pair when both members are present






40. The study of organisms in relation to their environment






41. An organ centrally involved in the human digestive system






42. One of the two strands that constitute a chromosome; chromatids are held together by the centromere






43. The vascular tissue of a plant that transports organic materials (photosynthetic products) from the leaves to other parts of the plant






44. Multicellular organism






45. The ways in which organisms regulate their supply of water






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






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






48. A marine arthropod - now extinct - that lived during the Paleozoic era






49. A mutation involving the addition or loss of nucleotides






50. A green pigment that performs essential functions as an electron donor and light "entrapper" in photosynthesis