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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. One of a class of organic compounds that is composed of many amino acids; contains C - H - O and N






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






3. Compounds in bile that aid in emulsification






4. A mutation involving the addition or loss of nucleotides






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






6. A form of asexual reproduction in which the egg develops in the absence of sperm






7. A mucus-secreting membrane






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






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






10. An animal with a constant body temperature






11. An air-conducting tube






12. A class of arthropods that includes scorpions - spiders - mites and ticks






13. A membrane that envelopes the nucleus and separates it from the cytoplasm; present in eukaryotes






14. Agent that induces mutations; typically carcinogenic






15. Encompasses the brain and the spinal cord






16. A hoofed animal






17. 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)






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






19. A disease-causing organism






20. The final stages of protein synthesis in which the genetic code of nucleotide sequences is translated into a sequences of amino acids






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






22. Organism that consumes food from outside itself instead of producing it






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






24. The reproductive organ that produces sex cells






25. A change from a diploid nucleus to a haploid nucleus - as in meiosis






26. The first filial generation (first offspring)






27. Describes an organism that lives symbiotically with a host; this host neither benefits nor suffers from the association






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






29. In plants - an area of undifferentiated tissue covered by embryonic leaves






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

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31. A duct that carries urine from the kidneys to the bladder






32. The coiled part of the sperm duct - adjacent to the testes in mammals






33. A kind of white blood cell in vertebrates that is characterized by a rounded nucleus; involved in the immune response






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






35. A fat or oil






36. A plant that has a single cotyledon or seed-leaf






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 extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac






39. The tenth cranial nerve that innervates digestive organs - heart and other areas






40. The innermost tissue layer of the eyeball that contains light-sensitive receptor cells






41. The intake of fluid droplets into a cell






42. A four-letter code made up of the DNA nitrogen bases A - T - G and C; each chromosome is made up of thousands of these bases






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






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






45. A symbol that denotes the relative concentration of hydrogen ions in a solution






46. The smallest particle that is capable of carrying out photosynthesis; the functional unit of a chloroplast






47. The place of attachment of the mitotic fiber to the chromosome






48. A process of asexual reproduction in which the offspring develop from an outgrowth of the plant or animal






49. An organism that utilizes the energy of inorganic materials such as water and carbon dioxide or the sun to manufacture organic materials






50. 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)