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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. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






2. The passive - rhythmical expansion or dilation of the cavities of the heart (atria or ventricles) that allows these organs to fill with blood; preceded and followed by systole (contraction)






3. Pertains to a gene or characteristic that is masked when a dominant allele is present






4. The stable - biotic part of the ecosystem in which populations exist in balance with each other and with the environment






5. An organism that possesses one or more whiplike appendages called flagella






6. A dense fluid within the chloroplast in which CO2 is converted into sugars in photosynthesis






7. The functional role and position of an organism in an ecosystem; embodies every aspect of the organism's existence






8. Protein threads that form in the blood during clotting






9. In plants - the tissue between the epidermis and the vascular cylinder in the roots and stems of plants; in animals - the outer tissue of some organs






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






11. The portion of alimentary canal connecting the pharynx and the stomach






12. Laws of classical genetics established through Mendel's experiments with peas






13. An organelle that regulates cell functions and contains the genetic material of the cell






14. A stage of embryonic development in which the embryo consists of a hollow ball of cells






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






16. A multidirectional sensory system of lower animals such as the hydra - consisting of nerve fibers spread throughout the ectoderm






17. The kind of bond formed when two amino acid units are jointed end to end






18. A sensory hair structure in the utriculus and the sacculus of the inner ear; orients the head with respect to gravity






19. A digestive enzyme of the saliva that turns starch into maltose (salivary amylase)






20. The womb in which the fetus develops






21. Secreted by the anterior pituitary gland - this hormone stimulates the conversion of a follicle into the corpus luteum and the secretion of progesterone by the corpus luteum






22. An emulsifying agent secreted by the liver






23. A network of capillaries in the Bowman's capsules of the kidney






24. A chemical action that releases energy from glucose to form ATP






25. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter






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






27. An excretory product of protein metabolism






28. An organ that is not functional in an organism - but was functional at some period in its evolution






29. An abbreviation of ribonucleic acid - a nucleic acid in which the sugar is ribose; a product of DNA transcription that serves to control certain cell activities






30. A plant that belongs to the class of seed plants in which the seeds are not enclosed in an ovary; includes the conifers






31. A hormone that stimulates plant stem elongation






32. A stage of mitosis; chromosomes line up at the equator of the cell






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






34. Substance secreted by organisms that influences the behavior of other members of the same species






35. Describes an organism that lives symbiotically with a host; this host neither benefits nor suffers from the association






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






37. The recycling of nitrogen from decaying organism for use in future generations






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






39. Living - as in living organisms in the environment






40. One of the paired lateral divisions of the forebrain






41. The ability to respond to a stimulus






42. A process of photosynthesis in which water is split into H+ and OH-; the hydrogen ion is then joined to NADP






43. 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






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






45. The science of classification of living things






46. A kind of white blood cell in vertebrates that is characterized by a rounded nucleus; involved in the immune response






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






48. A type of nuclear division that is characterized by complex chromosomal movement and the exact duplication of chromosomes; occurs in somatic cells






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






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