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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. Protein threads that form in the blood during clotting






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






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






4. The transfer of pollen from the stamen to the pistil of the same flower






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






6. A hormone that stimulates plant stem elongation






7. A nuclear protein of chromosomes that stains readily






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






9. Substance secreted by organisms that influences the behavior of other members of the same species






10. Part of the nephron in the kidney; involved in excretion

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11. The posterior part of the brain that controls the rate of breathing and other autonomic functions






12. The creation of certain strains of specific traits through control of breeding






13. A nerve cell






14. A plastid containing chlorophyll






15. A perforation leading from the pharynx to the outside environment that is a characteristic of chordates at one stage of their development






16. Blood vessels located between ascending and descending aortas that deliver blood to most of the upper body






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






18. A tube connecting the ovaries and the uterus






19. Blood protein that is transformed to fibrin upon clotting






20. A marine biome typical of the open seas






21. The law by which genes on different chromosomes are inherited independently of each other






22. A microscopic opening located in the epidermis of a leaf and formed by a pair of guard cells






23. The hormone secreted by the corpus luteum of vertebrates and the placenta of mammals; its function is to maintain the endometrium






24. A plant that lives on another plant mensalistically






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






26. Passively floating or drifting flora and fauna of a body of water; consists mainly of microscopic organisms






27. A process by which the cell membrane is invaginated to form a vesicle which contains extracellular medium






28. An organism that is heterozygous for two different traits






29. The study of form and structure






30. One of the paired lateral divisions of the forebrain






31. A flowering plant with simple dry fruit - characterized by nodes on their roots that contain nitrogen-fixing bacteria






32. An organelle in the cytoplasm that contains RNA; serves as the site of protein synthesis






33. Adrenaline






34. A duct through which the urine passes from the bladder to the outside






35. A pyrimidine component of nucleic acids and nucleotides; pairs with adenine in DNA






36. A nerve fiber






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






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






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






40. A plant that has two seed leaves or cotyledons






41. The space between the mesodermal layers that forms the body cavity of some animal phyla






42. The hindbrain region that controls equilibrium and muscular coordination






43. Bacteria that are rod shaped






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






45. Describes structures that have similar function but different evolutionary origins; e.g. - a bird's wing and a moth's wing






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






47. The microspore of a seed plant






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






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






50. A symbol that denotes the relative concentration of hydrogen ions in a solution