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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. The class of free-living flatworms






2. An organism that possesses both the male and the female reproductive organs






3. A lateral region of the forebrain






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






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






6. An endocrine gland located in the neck that produces thyroxin






7. Changes in genes that are inherited






8. A mucus-secreting membrane






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






10. The space between the mesodermal layers that forms the body cavity of some animal phyla






11. The division in animal cell cytoplasm caused by the pinching in of the cell membrane






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






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






14. A multidirectional sensory system of lower animals such as the hydra - consisting of nerve fibers spread throughout the ectoderm






15. A plant that lives on another plant mensalistically






16. A cell that divides to form two secondary spermatocytes






17. A cell in the retina that is sensitive to colors and is responsible for color vision






18. The basal branch of each spinal nerve; carries motor neurons






19. An underground stem






20. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male






21. The process of forming the sperm cells from primary spermatocytes






22. An organism that produces spores; a phase in the diploid-haploid life cycle that alternates with a gametophyte phase






23. A ductless gland that secretes hormones directly into the bloodstream






24. The portion of seed plant embryo above the cotyledon






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






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






27. Degree of penetrability - as in membranes that allow given substances to pass through; the ability to penetrate






28. The law by which genes on different chromosomes are inherited independently of each other






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






30. Vascular tissue of the plant that aids in support and carries water






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






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






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






34. Deoxyribonucleic acid; found in cell nucleus - its basic unit is the nucleotide; contains coded genetic information; can replicate on the basis of heredity






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






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






37. A pouched mammal - such as the kangaroo or opossum






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






39. The part of the body of an animal that is between the neck or head and the abdomen






40. 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






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






42. Blood vessels located between ascending and descending aortas that deliver blood to most of the upper body






43. A fatty sheath surrounding the axon of a neuron that aids in stimulus transmission; it is secreted by the Schwann cells






44. Outgrowths of a root's epidermal cells that allow for greater surface area for absorption of nutrients and water






45. A process of photosynthesis in which water is split into H+ and OH-; the hydrogen ion is then joined to NADP






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






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






48. A waxy protective layer secreted by the outer surface of plants - insects - etcetera






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






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