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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. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male






2. The living matter of a cell - located between the cell membrane and the nucleus






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






4. The male gonads that produce sperm and male hormones






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






6. The part of the flower that bears the female gametophyte






7. A nerve fiber






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






9. A cell resulting from the fusion of gametes






10. Compounds in bile that aid in emulsification






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






12. A stomach enzyme that partially digests proteins






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






14. A large class of arthropods - including crabs and lobsters






15. Describes cells that have a double set of chromosomes in homologous pairs (2n)






16. The liquid part of blood






17. A resistance to disease developed through the immune system






18. The orientation of cells or organisms in relation to chemical stimuli; the growth or movement response of organisms to chemical stimuli






19. A structure formed by the wall of the uterus and the chorion of the embryo; serves as the area in which the embryo obtains nutrition from the parent






20. Bacteria that are rod shaped






21. A type of nuclear division that is characterized by complex chromosomal movement and the exact duplication of chromosomes; occurs in somatic cells






22. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter






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






24. The innermost embryonic germ layer that gives rise to the lining of the alimentary canal and to the digestive and respiratory organs






25. A flowering plant with simple dry fruit - characterized by nodes on their roots that contain nitrogen-fixing bacteria






26. A disease-causing organism






27. Unicellular organism with simple cell structure






28. A cell in the retina that is sensitive to colors and is responsible for color vision






29. The sensory branch of each spinal nerve






30. The mammalian oviduct that leads from the ovaries to the uterus






31. The ways in which organisms regulate their internal heat






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






33. A fat-digesting hormone






34. An enzyme that acts upon maltose and converts it into glucose






35. In mammals - a flap of tissue above the glottis; it folds back over the glottis in swallowing to close the air passages of the lungs; contains elastic cartilage






36. A thyroid deficiency that results in stunted growth and feeblemindedness






37. Occurs when different traits are inherited together more often than they would have been by chance along; it is assumed that these traits are linked on the same chromosome






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






39. The division in animal cell cytoplasm caused by the pinching in of the cell membrane






40. A chemical messenger that is secreted by one part of the body and carried by the blood to affect another part of the body - usually a muscle or gland






41. The cellular layer that covers external and internal surfaces






42. Protective immunity to a disease in which the individual produces antibodies as a result of previous exposure to the antigen






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






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






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






46. The loss of all or part of a chromosome






47. Changes in genes that are inherited






48. A simple sugar






49. An association between an algae and a fungus that is symbiotic and mutualistic in nature






50. A process by which the vesicle in the cell fuses with the cell membrane and releases its contents to the outside