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






2. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species






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






4. The male gonads that produce sperm and male hormones






5. A chemical action that releases energy from glucose to form ATP






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






7. The swelling at the end of an axon






8. A symbiotic relationship from which both organisms involved derive some benefit






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






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






11. An "emergency" hormone stimulated by anger or fear; increase blood pressure and heart rate in order to supply the emergency needs of the muscles






12. The physical appearance or makeup of an individual - as opposed to its genetic makeup






13. The description of a plant life cycle that consists of a diploid - asexual - sporophyte generation and a haploid - sexual - gametrophyte generation






14. Relating to the lung






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






16. The exchange of parts of homologous chromosomes during meiosis






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






18. The chamber in the alimentary canal of certain vertebrates located below the large intestine - into which the ureter and reproductive organs empty (as in frogs)






19. Membranous organelles involved in the storage and modification of secretory products






20. Cytoplasmic bodies within a plant cell that are often pigmented






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






22. An anterior pituitary hormone that stimulates the follicles in females and the function of the seminiferous tubules in males






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






24. The part of the alimentary canal between the mouth and the esophagus






25. A mature ovary






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






27. The type of mating that occurs when an organism selects a mating partner that resembles itself






28. A waxy protective layer secreted by the outer surface of plants - insects - etcetera






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






30. The production of a number of different species from a single ancestral species






31. Pertaining to a restricted locality; ecologically - occurring only in one particular region






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






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






34. Chemical groups attached to carbon skeletons that give compounds their functionality






35. A hormone that ripens fruit and induces aging






36. A category of taxonomic classification that is ranked above class and under kingdoms






37. An organic compound to which hydrogen and oxygen are attached; the hydrogen and oxygen are in a 2:1 ratio; examples include sugars - starches and cellulose






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






39. A structure of the eye that focuses images on the retina by changing its convexity






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






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






42. A constituent of the plasma of the blood of vertebrates; it is converted to thrombin by thrombokinase in the presence of calcium ions - thus contributing to the clotting of blood






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






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






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






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






47. Bacteria that are rod shaped






48. Daily cycles of behavior






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






50. The microspore of a seed plant