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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 structure found between the cerebral hemispheres of vertebrates; secretes melatonin






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






3. The sensory branch of each spinal nerve






4. One of a pair of kidney-shaped cells that surround a stomate and regulate the size of the stomate in a leaf






5. A remnant of follicle after ovulation that secretes the hormone progesterone






6. A fatty sheath surrounding the axon of a neuron that aids in stimulus transmission; it is secreted by the Schwann cells






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






8. Outgrowths of a root's epidermal cells that allow for greater surface area for absorption of nutrients and water






9. An organism that must get its inorganic and organic raw materials from the environment; a consumer






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






11. A structure that extends from the trunk of an organism and is capable of active movements






12. A small projection in the walls of the small intestine that increases the surface area available for absorption






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






14. Pertaining to a type of gland that releases its secretion through a duct






15. A blood clot that is formed within a blood vessel






16. The veins that carry blood from the digestive organs to the liver






17. The process by which environmental patterns or objects presented to a developing organism during a "critical period" of its growth is accepted as a permanent element of its behavior






18. 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






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






20. An organelle that contains enzymes that aid in intracellular digestion






21. A thin - transparent - eyelid-like membrane that opens and closes laterally across the cornea of many vertebrates (the third eyelid)






22. A female sex hormone secreted by the follicle






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






24. The inner portion of the cytoplasm of a cell or the portion that surrounds the nucleus






25. The cell membrane






26. The triploid tissue in some seeds that contains stored food and is formed by the union of one sperm nucleus with two nuclei of the female's gametophyte






27. 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






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






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






30. A constituent of the plasma of the blood of vertebrates; it is converted to thrombin by thrombokinase in the presence of calcium ions - thus contributing to the clotting of blood






31. 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






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






33. An enzyme that acts upon maltose and converts it into glucose






34. A waxy protective layer secreted by the outer surface of plants - insects - etcetera






35. The removal of hydrogen or electrons from a compound or addition of oxygen; half of a redox (oxidation or reduction) process






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






37. An abbreviation of nicotinamide-adenine-dinucleotide - also called DPN; a respiratory oxidation-reduction molecule






38. A structure that arises during mitosis and helps separate the chromosomes; composed of tubulin






39. A pyrimidine found in RNA (but not DNA); pairs with DNA adenine






40. The system of naming an organism by its genus and species name






41. 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






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






43. An organic nutrient required by organisms in small amounts to aid in proper metabolic processes






44. Structures in the testes that produce sperm and semen






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






46. An animal phylum in which all members have a notochord - dorsal nerve cord and pharyngeal gill slits at some embryonic stage; includes the Cephalochordata and the Vertebrates






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






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






49. A dominant allele suppresses the expression of the other member of an allele pair when both members are present






50. The outermost surface of an organism