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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 largest artery; carries blood from the left ventricle






2. A network of capillaries in the Bowman's capsules of the kidney






3. 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






4. A change from a diploid nucleus to a haploid nucleus - as in meiosis






5. A fat or oil






6. An undifferentiated - growing region of a plant that is constantly undergoing cell division and differentiation






7. An organism that obtains its nutrients from dead organisms






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






9. The phylum of sponges






10. An organism that possesses one or more whiplike appendages called flagella






11. An antipathogenic substance (e.g. - penicillin)






12. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






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






14. The liquid part of blood






15. The association of physical - visceral response with an environmental stimulus with which it is not naturally associated; a learned response






16. The portion of a DNA molecule that serves as a unit of heredity; found on the chromosome






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






18. The cavity between the lungs and the wall of the chest






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






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






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






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






23. An embryonic structure that gives rise to the central nervous system






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






25. An endocrine gland located in the neck that produces thyroxin






26. Daily cycles of behavior






27. A sensory hair structure in the utriculus and the sacculus of the inner ear; orients the head with respect to gravity






28. The tenth cranial nerve that innervates digestive organs - heart and other areas






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






30. The ability of an organism to contribute its alleles and therefore is phenotypic traits to future generations






31. Plant growth stimulated by light (stem: + - towards light; root: - - away from light)






32. One of the primary tissues of the embryo






33. A pair of chromosome pairs present during the first metaphase of meiosis






34. Organelles that serve as specialized containers for metabolic reactions






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






36. A purine (nitrogenous base) component of nucleotides and nucleic acids; links with cytosine in DNA






37. The recycling of carbon from decaying organisms for use in future generations






38. 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






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






40. A stomach enzyme that partially digests proteins






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






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






43. A mutation in which a single nucleotide base is substituted for another nucleotide base - or an extra nucleotide base is added






44. 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






45. A unit of heat; the amount of heat required to raise the temperature of one gram of water by one degree centigrade






46. The reproductive organ that produces sex cells






47. The part of the male reproductive organ (the stamen) that produces and stores pollen






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






49. Describes a fluid that has the same osmotic pressure as a fluid it is compared to






50. A nerve fiber