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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 dark-staining small body within the nucleus; composed of RNA






2. The extraembyonic membrane of birds - reptiles and mammals that serves as an area of gaseous exchange and as a site for the storage of noxious excretion products






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






4. A substance that is acted upon by an enzyme






5. The outer layer of cerebral hemispheres in the forebrain - consisting of gray matter






6. A lateral region of the forebrain






7. The thigh bone of vertebrates






8. The thin-walled anterior chamber of the heart (also called the auricle)






9. Usually referred to as ACTH and secreted by the anterior lobe of the pituitary gland; stimulates the adrenal cortex to produce its characteristic hormones






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






11. A foreign protein that stimulates the production of antibodies when introduced into the body of an organism






12. Fluid excreted by the kidney containing urea - water - salts - etc






13. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac






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






15. 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






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






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






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






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






20. A structure in animal cells containing centrioles from which the spindle fibers develop






21. A cell that divides to form the polar body and the secondary oocyte






22. In mammals - a flap of tissue above the glottis; it folds back over the glottis in swallowing to close the air passages of the lungs; contains elastic cartilage






23. The haploid - sexual stage in the life cycle of plants






24. The phylum of sponges






25. The intake of fluid droplets into a cell






26. A cell that divides to form two secondary spermatocytes






27. An organic molecule consisting of joined phosphate - 5-carbon sugar (deoxyribose or ribose) - and a purine or a pyrimidine (adenine - guanine - uracil - thymine or cytosine)






28. The mammalian oviduct that leads from the ovaries to the uterus






29. The most anterior portion of the small intestine of vertebrates - adjacent to the stomach; the continuation of the stomach into which the bile duct and pancreatic duct empty






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






31. The vascular tissue of a plant that transports organic materials (photosynthetic products) from the leaves to other parts of the plant






32. The junction or gap between the axon terminal of one neuron and the dendrites of another neuron






33. A process of formation of ova






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






35. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species






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






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






38. A structure of the eye that focuses images on the retina by changing its convexity






39. Process of aerobic respiration that fully harvests the energy of glucose; also known as the citric acid cycle






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






41. A fat or oil






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






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






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






45. 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)






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






47. The biome located between the polar region and the tiaga






48. The innermost tissue layer of the eyeball that contains light-sensitive receptor cells






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






50. A nitrogenous base such as adenine or guanine; when joined with sugar or phosphate - a component of nucleotides and nucleic acids