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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. Describes cells (gametes) that have half the chromosome number typical of the species






2. A form of anaerobic respiration found in yeast and bacteria






3. The process by which water and dissolved substances pass through a membrane






4. A white or colorless - amorphous - horny substance that forms part of the outer integument of insects - crustaceans and some other invertebrates; it also occurs in certain fungi






5. The enzyme that acts upon lactose






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






7. Organelles that serve as specialized containers for metabolic reactions






8. A type of virus that can destroy bacteria by infecting - parasitizing and eventually killing them






9. An opening in the eye whose size is regulated by the iris






10. Changes in genes that are inherited






11. A mitotic or meiotic stage in which the chromosomes become visible and during which the spindle fibers form; synapsis takes place during the first meiotic prophase






12. An offspring that is heterozygous for one or more gene pairs






13. The primary germ layer - developed from the lip of the blastopore - that gives rise to the skeleton - the circulatory system and many organs and tissues between the epidermis and the epithelium






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






15. Blood protein that is transformed to fibrin upon clotting






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






17. The fluid that remains after fibrinogen is removed from the blood plasma of vertebrates






18. The functional role and position of an organism in an ecosystem; embodies every aspect of the organism's existence






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






20. 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






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






22. An organic catalyst and protein






23. A tube connecting the ovaries and the uterus






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






25. The swelling at the end of an axon






26. The uppermost portion of pistil upon which pollen grains alight






27. An association of homologous chromosomes during the first meiotic division






28. An animal phylum in which all members have a notochord - dorsal nerve cord and pharyngeal gill slits at some embryonic stage; includes the Cephalochordata and the Vertebrates






29. An organism that must get its inorganic and organic raw materials from the environment; a consumer






30. One of many tubules that absorb tissue fluid and return it to the bloodstream via the lymphatic system






31. The phylum of sponges






32. A space in the body






33. Hormone active in osmoregulation; a mineral corticoid produced by the adrenal cortex; stimulates reabsorption of Na+ and secretion of K+






34. The pairing of homologous chromosomes during meiosis






35. The thin - bent part of the renal tubule that is the site of the counter-current flow and the sodium gradient






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






37. The ways in which organisms regulate their internal heat






38. Waves of contraction and relaxation passing along a tubular structure - such as the digestive tube






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






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






41. A body fluid that flows in its own circulatory fluid in lymphatic vessels separate from blood circulation






42. A fat-digesting hormone






43. The male gonads that produce sperm and male hormones






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






45. A network - particularly of nerve or blood vessels






46. The process by which environmental patterns or objects presented to a developing organism during a "critical period" of its growth is accepted as a permanent element of its behavior






47. The study of organisms in relation to their environment






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






49. Any cell that is not a reproductive cell






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