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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. An air sac in the lung; the site of respiratory exchange - involving diffusion of oxygen and carbon dioxide between the air in the alveolus and the blood in the capillaries






2. Self-digestion occurring in plant and animal tissues - particularly after they have ceased to function properly






3. The inner portion of the cytoplasm of a cell or the portion that surrounds the nucleus






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






5. Pertaining to the head






6. An anucleate red blood cell that contains hemoglobin






7. Fluid excreted by the kidney containing urea - water - salts - etc






8. The science of classification of living things






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






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






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






12. A process of formation of ova






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






14. A hormone that ripens fruit and induces aging






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






16. A bundle of nerve axons






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






18. Occurs when certain traits are determined by genes on sex chromosomes






19. A grouping of neuron cell bodies that acts as a coordinating center






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






21. An air duct from the middle ear to the throat that equalizes external and internal air pressure






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






23. The living together of two organisms in an intimate relationship






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






25. The evaporation of water from leaves or other exposed surfaces of plants






26. The portion of seed plant embryo above the cotyledon






27. A female sex hormone secreted by the follicle






28. A plant growth hormone






29. One of a class of organic compounds that contains a molecular skeleton of four fused rings of carbon






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






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






32. A blood clot that is formed within a blood vessel






33. The sensory branch of each spinal nerve






34. 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)






35. Daily cycles of behavior






36. A pyrimidine found in RNA (but not DNA); pairs with DNA adenine






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






38. Plant tissue consisting of large thin-walled cells for storage






39. Organism that produces its own food; first stage in the food chain






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






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






42. The external opening of the trachea in insects






43. Adrenaline






44. One of a pair of kidney-shaped cells that surround a stomate and regulate the size of the stomate in a leaf






45. A family tree depicting the inheritance of a particular genetic trait over several generations






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






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






48. Describes a fluid that has a higher osmotic pressure than another fluid it is compared to






49. The phylum to which segmented worms belong






50. The phylum to which jointed-legged invertebrates belong - including insects - arachnids and crustaceans