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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. An invertebrate animal phylum in which animals possess a single alimentary opening and tentacles with stinging cells






2. A marine biome typical of the open seas






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






4. A wall composed of cellulose that is external to the cell membrane in plants; it is primarily involved in support and in the maintenance of proper internal pressure






5. A metabolic stage between mitoses in which genetic material is reproduced






6. The process of breaking down large organic molecules into smaller ones






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






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






9. The inner portion of the cytoplasm of a cell or the portion that surrounds the nucleus






10. The womb in which the fetus develops






11. The navel






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






13. The portion of the embryonic seed plant below the point of attachment of the coytledon; form the root






14. The liquid part of blood






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






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






17. The swelling at the end of an axon






18. A multidirectional sensory system of lower animals such as the hydra - consisting of nerve fibers spread throughout the ectoderm






19. A complex carrier mechanism located on the inside of the inner mitochondrial membrane of the cell; releases energy and is used to form ATP






20. The instance of polymorphism in which there is a difference of form between two members of a species - as between males and females






21. Self-digestion occurring in plant and animal tissues - particularly after they have ceased to function properly






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






23. A plant-eating animal






24. The external opening of the trachea in insects






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






26. A stalklike or elongated body part - usually pointed at one end






27. Comprises somatic and autonomic nervous systems; consists of cranial nerves and spinal nerves






28. A decimal fraction that represents the presence of an allele for all members of a population that have a particular gene locus






29. A stage of embryonic development characterized by the differentiation of the cells into the ectoderm and endoderm germ layers and by the formation of the archenteron






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






31. A carbohydrate that is composed of many monosaccharide units joined together






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






33. Cycle in photosynthesis that reduces fixed carbon to carbohydrates through the addition of electrons ("dark cycle")






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






35. A mutation involving the addition or loss of nucleotides






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






37. Living - as in living organisms in the environment






38. Any organism that is the victim of a parasite






39. The male gonads that produce sperm and male hormones






40. A mass of cells that have similar structures and perform similar functions






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






42. An enzyme that acts upon sucrose






43. Nonliving - as in the physical environment






44. The transfer of a piece of chromosome to another chromosome






45. An emulsifying agent secreted by the liver






46. A terrestrial habitat zone that is characterized by large tracts of coniferous forests - long and cold winters - and short summers






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






48. A blood vessel that carries blood away from the heart






49. The portion of alimentary canal connecting the pharynx and the stomach






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