Test your basic knowledge |

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 membrane that envelopes the nucleus and separates it from the cytoplasm; present in eukaryotes






2. Anaerobic respiration the yields 2 molecules of ATP - lactic acid - ethyl alcohol and carbon dioxide or some similar compound via the glycolytic pathway






3. A mutation in which a single nucleotide base is substituted for another nucleotide base - or an extra nucleotide base is added






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






5. An organic nutrient required by organisms in small amounts to aid in proper metabolic processes






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






7. A hydrogen carrier containing iron that functions in many cellular processes - including respiration






8. The fist stage of protein synthesis - in which the information coded in the DNA base is transcribed onto a strand of mRNA






9. The elimination of metabolic waster matter






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






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






12. One of the primary tissues of the embryo






13. A plant that lives on another plant mensalistically






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






15. A sugar composed of two combined monosaccharides






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






17. Occurs when different traits are inherited together more often than they would have been by chance along; it is assumed that these traits are linked on the same chromosome






18. A marine biome typical of the open seas






19. A stage of embryonic development characterized by the differentiation of the cells into the ectoderm and endoderm germ layers and by the formation of the archenteron






20. Process of aerobic respiration that fully harvests the energy of glucose; also known as the citric acid cycle






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






22. Living or active in the absence of free oxygen; pertaining to respiration that is independent of oxygen






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






24. A mature ovary






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






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






27. A nitrogen base such as cytosine - thymine and uracil; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






28. The stage in mitosis that is characterized by the migration of chromatids to opposite ends of the cell; the stage in meiosis during which homologus pairs migrate (Anaphase I) - and the stage in meiosis during which chromatids migrate to different end






29. A pyrimidine component of nucleic acids and nucleotides; pairs with adenine in DNA






30. An association of homologous chromosomes during the first meiotic division






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






32. An opening in the eye whose size is regulated by the iris






33. A nitrogen base that is present in nucleotides and nucleic acids; it is paired with guanine






34. The enzyme that acts upon lactose






35. The separation of homologous pairs of chromosomes following meiotic synapsis






36. A pair of chromosome pairs present during the first metaphase of meiosis






37. The pairing of homologous chromosomes during meiosis






38. A family tree depicting the inheritance of a particular genetic trait over several generations






39. Adenosine diphosphate (ADP) and adenosine triphosphate (ATP) - which are energy storage molecules






40. The cellular layer that covers external and internal surfaces






41. Occurs when a segment of genetic material on a chromosome becomes reversed






42. Any cell capable of ingesting another cell






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






44. An individual that is heterozygous for only one trait






45. A complex carrier mechanism located on the inside of the inner mitochondrial membrane of the cell; releases energy and is used to form ATP






46. The phylum of sponges






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






48. A plant growth hormone






49. A sensory organ capable of detecting light






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