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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 hormone produced by the Islets of Langerhans in the pancreas






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






3. The triploid tissue in some seeds that contains stored food and is formed by the union of one sperm nucleus with two nuclei of the female's gametophyte






4. The large intestine






5. A starch form in animals; glucose is converted to this in the liver






6. Nonliving - as in the physical environment






7. A condition in which an organism may have a multiple of the normal number of chromosomes (4n - 6n - etc)






8. A tube connecting the ovaries and the uterus






9. Describes organisms that are cooperative in action - such as hormones or other growth factors that reinforce each other's activity






10. Pertaining to a type of gland that releases its secretion through a duct






11. A substance that prevents appreciable changes in pH in solutions to which small quantities of acids or bases are added






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






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






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






15. Describes a fluid that has the same osmotic pressure as a fluid it is compared to






16. A space in the cytoplasm of a cell that contains fluid






17. A network - particularly of nerve or blood vessels






18. The inner layer of an organ surrounded by the cortex






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






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






21. The part of the neuron that transmits impulses to the cell body






22. A sensory hair structure in the utriculus and the sacculus of the inner ear; orients the head with respect to gravity






23. A structure in animal cells containing centrioles from which the spindle fibers develop






24. The loss of all or part of a chromosome






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






26. Changes in genes that are inherited






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






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






29. A process of formation of ova






30. A cell resulting from the fusion of gametes






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






32. A five carbon sugar that has one oxygen atom less than ribose; a component of DNA






33. The exchange of parts of homologous chromosomes during meiosis






34. The microspore of a seed plant






35. A protein compound containing iron that is found in red blood cells






36. An organelle that regulates cell functions and contains the genetic material of the cell






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






38. 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






39. Multicellular organism






40. Asexual reproduction; in this process - the parent organism splits into two equal daughter cells






41. A bone of the upper arm






42. A large molecule that is composed of many similar molecule units






43. The pigment in rod cells that causes light sensitivity






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






45. A nerve fiber






46. A digestive enzyme of the saliva that turns starch into maltose (salivary amylase)






47. Anaerobic respiration the yields 2 molecules of ATP - lactic acid - ethyl alcohol and carbon dioxide or some similar compound via the glycolytic pathway






48. Genetic blending; each allele exerts some influence on the phenotype






49. An antigen in blood; can cause erythroblastosis fetalis when the mother is Rh- and the fetus is Rh+






50. Tissue formed by the differentiation of cambium that causes a growth in width of a plant system