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






2. A short - stubby rod consisting of chromatin that is found in the nucleus of the cells; contains the genetic or hereditary component of cells (in the form of genes)






3. The chamber in the alimentary canal of certain vertebrates located below the large intestine - into which the ureter and reproductive organs empty (as in frogs)






4. xylem that is no longer being used






5. A sensory organ capable of detecting light






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






7. Tissue formed by the differentiation of cambium that causes a growth in width of a plant system






8. Self-digestion occurring in plant and animal tissues - particularly after they have ceased to function properly






9. The male gonads that produce sperm and male hormones






10. A typical coelenterate individual with a hollow tubular body whose outer ectoderm is separated from its inner ectoderm by mesoglea






11. An organ centrally involved in the human digestive system






12. Protective immunity to a disease in which the individual produces antibodies as a result of previous exposure to the antigen






13. A plant-eating animal






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






15. A relationship in which one organism benefits at the expense of another






16. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage






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






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






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






20. A flowering plant with simple dry fruit - characterized by nodes on their roots that contain nitrogen-fixing bacteria






21. A portion of the CNS consisting of cytons (cell bodies) - their dendrites and synaptic connections






22. The type of mating that occurs when an organism selects a mating partner that resembles itself






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






24. Describes structures that have similar function but different evolutionary origins; e.g. - a bird's wing and a moth's wing






25. An individual that is heterozygous for only one trait






26. A body fluid that flows in its own circulatory fluid in lymphatic vessels separate from blood circulation






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






28. Any organism that is the victim of a parasite






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






30. An organism that is heterozygous for two different traits






31. Deoxyribonucleic acid; found in cell nucleus - its basic unit is the nucleotide; contains coded genetic information; can replicate on the basis of heredity






32. An association between an algae and a fungus that is symbiotic and mutualistic in nature






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






34. 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






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






36. A five carbon sugar that has one oxygen atom less than ribose; a component of DNA






37. Waves of contraction and relaxation passing along a tubular structure - such as the digestive tube






38. The swelling at the end of an axon






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






40. A gland composed of two parts - anterior and posterior - each with its own secretions; called the "master gland" because its hormones stimulate secretions by other glands






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






42. A reproductive cell that is capable of developing directly into an adult






43. The place of attachment of the mitotic fiber to the chromosome






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






45. A hormone produced by the Islets of Langerhans in the pancreas






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






47. Small - disc-shaped bodies in the blood that play a chief role in coagulation






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






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






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