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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 hydrogen carrier containing iron that functions in many cellular processes - including respiration






2. The inner layer of an organ surrounded by the cortex






3. An enzyme that acts upon sucrose






4. The stage in mitosis that is characterized by the migration of chromatids to opposite ends of the cell; the stage in meiosis during which homologus pairs migrate (Anaphase I) - and the stage in meiosis during which chromatids migrate to different end






5. The fusion of sperm and the egg to produce a zygote






6. Refers to protective covering






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






8. Cells which in the female are located between the ovarian follicles and in the male are located between the seminiferous tubules of the testes






9. The portion of seed plant embryo above the cotyledon






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






11. The fluid that remains after fibrinogen is removed from the blood plasma of vertebrates






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






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






14. A behavioral or biological change that enables an organism to adjust to its environment






15. A protein compound containing iron that is found in red blood cells






16. A large class of arthropods - including crabs and lobsters






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






18. The outer - transparent layer of the eye






19. A stage of mitosis; chromosomes line up at the equator of the cell






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






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






22. A starch form in animals; glucose is converted to this in the liver






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






24. The orientation of cells or organisms in relation to chemical stimuli; the growth or movement response of organisms to chemical stimuli






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






26. Describes an individual that has the same gene for the same trait on each homologous chromosome






27. A female sex hormone secreted by the follicle






28. A flowering plant; a plant of the class Angiospermae that produces seeds enclosed in an ovary and is characterized by the possession of fruits and flowers






29. 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






30. The phylum to which jointed-legged invertebrates belong - including insects - arachnids and crustaceans






31. Any physical feature that prevents the ecological niches of different organisms from overlapping






32. The outermost bone of the middle ear (hammer)






33. The intake of fluid droplets into a cell






34. Any movement or growth of a living organism in response to the force of gravity






35. The part of the hindbrain located in the brain stem






36. A "seed leaf"; responsible for food digestion and storage in plant embryo






37. A membrane that envelopes the nucleus and separates it from the cytoplasm; present in eukaryotes






38. The coiled part of the sperm duct - adjacent to the testes in mammals






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






40. The uppermost portion of pistil upon which pollen grains alight






41. In taxonomy - a classification between species and family






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






43. The swelling at the end of an axon






44. Organelles that serve as specialized containers for metabolic reactions






45. The first filial generation (first offspring)






46. The process of forming the sperm cells from primary spermatocytes






47. The loss of all or part of a chromosome






48. A blood vessel that carries blood back to the heart from the capillaries






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






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