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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 colored part of the eye that is capable of contracting and regulating the size of the pupils






2. Organism that produces its own food; first stage in the food chain






3. 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)






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






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






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






7. The phylum of sponges






8. The second filial generation; offspring resulting from the crossing of individuals of the F1 generation






9. Organelles that serve as specialized containers for metabolic reactions






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






11. A large molecule that is composed of many similar molecule units






12. 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






13. A green pigment that performs essential functions as an electron donor and light "entrapper" in photosynthesis






14. An organ that stores urine temporarily before it is excreted






15. xylem that is no longer being used






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






17. Refers to protective covering






18. Tubules that excrete metabolic wastes into the hindgut in arthropods






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






20. The thigh bone of vertebrates






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






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






23. A plant that lives on another plant mensalistically






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






25. A body fluid that flows in its own circulatory fluid in lymphatic vessels separate from blood circulation






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






27. An organism that is heterozygous for two different traits






28. A microscopic - whiplike filament that serves as a locomotor structure in flagellate cells






29. A type of virus that can destroy bacteria by infecting - parasitizing and eventually killing them






30. A process of formation of ova






31. The production of daughter cells by means other than the sexual union of gametes (as in budding and binary fission)






32. The first filial generation (first offspring)






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






34. Related to the sense of smell






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






36. A bony or chitinous case or shield covering the back or part of the back of an animal (shell of a crab)






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






38. The science of classification of living things






39. Protein threads that form in the blood during clotting






40. A jellyfish






41. One of the two strands that constitute a chromosome; chromatids are held together by the centromere






42. The thin - bent part of the renal tubule that is the site of the counter-current flow and the sodium gradient






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






44. A response by an organism to the duration and timing of light and dark conditions






45. A cell in the retina that is sensitive to weak light






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






47. The part of the neuron that transmits impulses to the cell body






48. The portion of seed plant embryo above the cotyledon






49. A motile - multinucleate mass of protoplasm resulting from fusion of uninuclear amoeboid cells






50. A ring-shaped muscle that is capable of closing a tubular opening by constriction