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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 muscular valve regulating the flow of food from the stomach to the small intestine






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. Any cell capable of ingesting another cell






4. A female sex hormone secreted by the follicle






5. The innermost embryonic germ layer that gives rise to the lining of the alimentary canal and to the digestive and respiratory organs






6. Blood vessels located between ascending and descending aortas that deliver blood to most of the upper body






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






8. Genetic blending; each allele exerts some influence on the phenotype






9. A mass of cells that have similar structures and perform similar functions






10. The removal of an amino group from an organism - particularly from an amino acid






11. The creation of certain strains of specific traits through control of breeding






12. Nonliving - as in the physical environment






13. The thigh bone of vertebrates






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






15. A disease-causing organism






16. An underground stem






17. The part of the nervous system that regulates the involuntary muscles - such as the walls of the alimentary canal; includes the parasympathetic and sympathetic nervous systems






18. The study of form and structure






19. A mature ovary






20. The primary germ layer - developed from the lip of the blastopore - that gives rise to the skeleton - the circulatory system and many organs and tissues between the epidermis and the epithelium






21. The orderly process by which one biotic community replaces another until a climax community is established






22. 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






23. The part of the flower that produces pollen






24. The process by which water and dissolved substances pass through a membrane






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






26. A cell resulting from the fusion of gametes






27. A tube connecting the ovaries and the uterus






28. A mitotic or meiotic stage in which the chromosomes become visible and during which the spindle fibers form; synapsis takes place during the first meiotic prophase






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






30. The swelling at the end of an axon






31. A hormonal secretion of the adrenal cortex






32. A microscopic opening located in the epidermis of a leaf and formed by a pair of guard cells






33. The movement of particles from one place to another as a result of their random motion






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






35. A process of cell division whereby each daughter cell receives only one set of chromosomes; the formation of gametes






36. A plastid containing chlorophyll






37. An enzyme that acts upon sucrose






38. A tube one cell thick that carries blood from artery to vein; the site of material exchange between the blood and tissues of the body






39. The exchange of parts of homologous chromosomes during meiosis






40. A nerve fiber






41. A specialized structure that carries out particular functions for eukaryotic cells






42. An enlargement of the thyroid gland due to lack of iodine






43. The final stages of protein synthesis in which the genetic code of nucleotide sequences is translated into a sequences of amino acids






44. The cell membrane






45. A decimal fraction that represents the presence of an allele for all members of a population that have a particular gene locus






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






47. A process by which the cell membrane is invaginated to form a vesicle which contains extracellular medium






48. The production of a number of different species from a single ancestral species






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






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