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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. The female gonad in animals; the base of the pistil in plants






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






3. 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






4. The division in animal cell cytoplasm caused by the pinching in of the cell membrane






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






6. The instance of polymorphism in which there is a difference of form between two members of a species - as between males and females






7. Daily cycles of behavior






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






9. A tract of nerve fibers connecting the two cerebral hemispheres






10. Requiring free oxygen from the atmosphere for normal activity and respiration






11. A fluid-filled sensory apparatus that aids balance and hearing






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






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






14. A mitotic stage in which nuclei reform and nuclear membrane reappears






15. The loss of all or part of a chromosome






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






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






18. Random evolutionary changes in the genetic makeup of a population






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






20. A change from a diploid nucleus to a haploid nucleus - as in meiosis






21. Adrenaline






22. A marine biome; a region on the continental shelf that contains an ocean area with depths of up to 600 ft






23. An antigen in blood; can cause erythroblastosis fetalis when the mother is Rh- and the fetus is Rh+






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






25. The part of the alimentary canal between the mouth and the esophagus






26. A stomach enzyme that partially digests proteins






27. Organism that consumes food from outside itself instead of producing it






28. A ductless gland that secretes hormones directly into the bloodstream






29. Bacteria that are rod shaped






30. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male






31. The pressure exerted by the contents of a cell against the cell membrane or cell wall






32. Cytoplasmic bodies within a plant cell that are often pigmented






33. Hormone active in osmoregulation; a mineral corticoid produced by the adrenal cortex; stimulates reabsorption of Na+ and secretion of K+






34. An enzyme that acts upon sucrose






35. A plant-eating animal






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






37. A stalklike or elongated body part - usually pointed at one end






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






39. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions






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






41. Describes organisms that are cooperative in action - such as hormones or other growth factors that reinforce each other's activity






42. An abbreviation of nicotinamide-adenine-dinucleotide-phosphate - also called TPN; an organic compound that serves as an oxidation-reduction molecule






43. An offspring that is heterozygous for one or more gene pairs






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






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






46. A network or mesh of fibrils - fibers or filaments






47. An ion with a positive charge - or an ion that migrates towards the cathode (negative electrode) in an electric field






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






49. An excretory product of protein metabolism






50. A plant growth hormone