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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 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






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






4. The physical appearance or makeup of an individual - as opposed to its genetic makeup






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






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






7. One or two or more types of genes - each representing a particular trait; many alleles exist for a specific gene locus






8. A resistance to disease developed through the immune system






9. 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






10. A cell in the retina that is sensitive to colors and is responsible for color vision






11. Any cell that is not a reproductive cell






12. A network - particularly of nerve or blood vessels






13. The cell body of a neuron






14. Describes cells that have a double set of chromosomes in homologous pairs (2n)






15. Any organism that is the victim of a parasite






16. A flesh-eating animal; a holotrophic animal that subsists on other animals or parts of animals






17. All the members of a given species inhabiting a certain locale






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






19. An organic cofactor required for enzyme activity






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






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






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






23. A compact linear organization of nerve tissues with ganglia in the CNS






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






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






26. An air sac in the lung; the site of respiratory exchange - involving diffusion of oxygen and carbon dioxide between the air in the alveolus and the blood in the capillaries






27. The phylum of sponges






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






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






30. A mutation involving the addition or loss of nucleotides






31. A bone of the upper arm






32. A fat or oil






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






34. The portion of the embryonic seed plant below the point of attachment of the coytledon; form the root






35. The transfer of pollen from the stamen to the pistil of the same flower






36. An enzyme from the pancreas that digests proteins in the small intestine






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






38. In taxonomy - a classification between species and family






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






40. The genetic makeup of an organism without regard to physical appearance






41. A space in the body






42. Nonliving - as in the physical environment






43. An individual that is heterozygous for only one trait






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






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






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






47. An undifferentiated - growing region of a plant that is constantly undergoing cell division and differentiation






48. Encompasses the brain and the spinal cord






49. Related to the sense of smell






50. Cycle in photosynthesis that reduces fixed carbon to carbohydrates through the addition of electrons ("dark cycle")