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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 response by an organism to the duration and timing of light and dark conditions






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






3. The male gonads that produce sperm and male hormones






4. Protein threads that form in the blood during clotting






5. An organism that is heterozygous for two different traits






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






7. An organelle that contains enzymes that aid in intracellular digestion






8. The microspore of a seed plant






9. The system of naming an organism by its genus and species name






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






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






12. A cell in the retina that is sensitive to weak light






13. A mutation in which a single nucleotide base is substituted for another nucleotide base - or an extra nucleotide base is added






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






15. A blood vessel that carries blood back to the heart from the capillaries






16. The veins that carry blood from the digestive organs to the liver






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






18. Globular proteins produced by tissues that destroy or inactivate antigens






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






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






22. A network of capillaries in the Bowman's capsules of the kidney






23. An organism that does not require free oxygen in order to respire






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






25. The part of the flower that produces pollen






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






27. An enlargement of the thyroid gland due to lack of iodine






28. A microscopic - whiplike filament that serves as a locomotor structure in flagellate cells






29. An abbreviation of ribonucleic acid - a nucleic acid in which the sugar is ribose; a product of DNA transcription that serves to control certain cell activities






30. A plant that lives on another plant mensalistically






31. The part of the hindbrain located in the brain stem






32. 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






33. Random evolutionary changes in the genetic makeup of a population






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






35. A cell that divides to form two secondary spermatocytes






36. A process of formation of ova






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






38. Describes structures that have similar function but different evolutionary origins; e.g. - a bird's wing and a moth's wing






39. Fluid skeleton of annelids






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






41. A transmitter substance released from the axons of nerve cells at the synapse






42. 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






43. The passive - rhythmical expansion or dilation of the cavities of the heart (atria or ventricles) that allows these organs to fill with blood; preceded and followed by systole (contraction)






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






45. A motile - multinucleate mass of protoplasm resulting from fusion of uninuclear amoeboid cells






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






47. A section of the posterior forebrain associated with the pituitary gland






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






49. A mitotic stage in which nuclei reform and nuclear membrane reappears






50. The study of form and structure