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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 external opening of the trachea in insects






2. The sac in the ovary in which the egg develops






3. Occurs when certain traits are determined by genes on sex chromosomes






4. The liquid part of blood






5. In plants - an area of undifferentiated tissue covered by embryonic leaves






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






7. One-thousandth of a millimeter; a unit of microscopic length






8. A portion of the CNS consisting of cytons (cell bodies) - their dendrites and synaptic connections






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






10. A space in the body






11. A hormone that regulates water reabsorption






12. A process of cell division whereby each daughter cell receives only one set of chromosomes; the formation of gametes






13. Describes an organism that lives symbiotically with a host; this host neither benefits nor suffers from the association






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






15. A cell that divides to form the polar body and the secondary oocyte






16. The conversion of digested foods and other materials into forms usable by the body (i.e. - the conversion of amino acids into proteins)






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






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






19. A structure found between the cerebral hemispheres of vertebrates; secretes melatonin






20. An abbreviation of nicotinamide-adenine-dinucleotide-phosphate - also called TPN; an organic compound that serves as an oxidation-reduction molecule






21. The most anterior portion of the small intestine of vertebrates - adjacent to the stomach; the continuation of the stomach into which the bile duct and pancreatic duct empty






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






23. The largest portion of the human brain; it is believed to be the center of intelligence - conscious thought and sensation






24. A compact linear organization of nerve tissues with ganglia in the CNS






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






26. The outer - transparent layer of the eye






27. A typical coelenterate individual with a hollow tubular body whose outer ectoderm is separated from its inner ectoderm by mesoglea






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






29. Small - disc-shaped bodies in the blood that play a chief role in coagulation






30. A tube connecting the ovaries and the uterus






31. A pouched mammal - such as the kangaroo or opossum






32. A period in the development of animals between the embryo and adult stages; starts at hatching and ends in metamorphasis






33. Bacteria that are rod shaped






34. A nitrogen base that is present in nucleotides and nucleic acids; it is paired with guanine






35. An animal with a constant body temperature






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






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






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






39. A mall sex hormone (e.g. - testosterone)






40. A neuron that picks up impulses from receptors and transmits them to the spinal cord






41. A nuclear protein of chromosomes that stains readily






42. Agent that induces mutations; typically carcinogenic






43. The site of most digestion of nutrients and absorption of digested nutrients






44. 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






45. 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






46. Nonfunctional haploid cells created during meiosis in females; they have very little cytoplasm-most has gone into the functional egg cell






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






48. The transfer of pollen to the micropyle or to a receptive surface that is associated with an ovule (such as stigma)






49. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait






50. In plants - the tissue between the epidermis and the vascular cylinder in the roots and stems of plants; in animals - the outer tissue of some organs







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