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






2. A pair of chromosome pairs present during the first metaphase of meiosis






3. A dense fluid within the chloroplast in which CO2 is converted into sugars in photosynthesis






4. An organic molecule consisting of joined phosphate - 5-carbon sugar (deoxyribose or ribose) - and a purine or a pyrimidine (adenine - guanine - uracil - thymine or cytosine)






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






6. A plant that has two seed leaves or cotyledons






7. A specialized structure that leads to the digestive tract of a developing organism and provides it with food during early development






8. A sensory organ capable of detecting light






9. The more muscular chamber(s) of the heart that pump blood to the lungs and to the rest of the body






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






11. The dorsal part of the hip girdle






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






13. A cell that divides to form two secondary spermatocytes






14. The largest portion of the human brain; it is believed to be the center of intelligence - conscious thought and sensation






15. The liquid part of blood






16. A dark-staining small body within the nucleus; composed of RNA






17. 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






18. Describes an individual that possesses two contrasting alleles for a given trait






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






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






21. A plastid containing chlorophyll






22. A vacuole in the cytoplasm in which digestion takes place (in protozoans)






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






24. 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






25. A reproductive cell that is capable of developing directly into an adult






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






27. The reproductive organ that produces sex cells






28. Small - disc-shaped bodies in the blood that play a chief role in coagulation






29. An anucleate red blood cell that contains hemoglobin






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






31. The second filial generation; offspring resulting from the crossing of individuals of the F1 generation






32. Describes arthropods and other animals whose skeletal or supporting structures are outside the skin






33. The production of daughter cells by means other than the sexual union of gametes (as in budding and binary fission)






34. Cytoplasmic organelles that serve as sites of respiration; a rod-shaped body in the cytoplasm known to be the center of cellular respiration






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






36. The creation of certain strains of specific traits through control of breeding






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






38. A mucus-secreting membrane






39. Part of the nephron in the kidney; involved in excretion

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40. The stage in mitosis that is characterized by the migration of chromatids to opposite ends of the cell; the stage in meiosis during which homologus pairs migrate (Anaphase I) - and the stage in meiosis during which chromatids migrate to different end






41. One of the primary tissues of the embryo






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






43. An endocrine gland of vertebrates - usually paired - and located near or within the thyroid that secretes parathormone - which controls the metabolism of calcium






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






45. The class of free-living flatworms






46. Any chromosome that is not a sex chromosome






47. Undifferentiated tissue in the stem of a plant that aids growth in width






48. A structure that extends from the trunk of an organism and is capable of active movements






49. An organ that stores bile






50. An organic nutrient required by organisms in small amounts to aid in proper metabolic processes