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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 small granular body within the centrosome to which the spindle fibers attach






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






3. The phylum of sponges






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






5. Multicellular organism






6. The process by which water and dissolved substances pass through a membrane






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






8. A structure of the eye that focuses images on the retina by changing its convexity






9. A muscular valve regulating the flow of food from the stomach to the small intestine






10. Relating to the lung






11. The study of all living processes - activities and functions






12. The part of the male reproductive organ (the stamen) that produces and stores pollen






13. Involuntary muscle






14. Agent that induces mutations; typically carcinogenic






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






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






17. The outermost embryonic germ layer that gives rise to the epidermis and the nervous system






18. The failure of some homologous pairs of chromosomes to separate following meiotic synapsis






19. Tissue formed by the differentiation of cambium that causes a growth in width of a plant system






20. The physical appearance or makeup of an individual - as opposed to its genetic makeup






21. The most anterior portion of the small intestine of vertebrates - adjacent to the stomach; the continuation of the stomach into which the bile duct and pancreatic duct empty






22. The individual differences of form among the members of a species






23. The functional role and position of an organism in an ecosystem; embodies every aspect of the organism's existence






24. A type of nuclear division that is characterized by complex chromosomal movement and the exact duplication of chromosomes; occurs in somatic cells






25. A hormone produced by the Islets of Langerhans in the pancreas






26. 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)






27. The loss of all or part of a chromosome






28. Laws of classical genetics established through Mendel's experiments with peas






29. A nitrogen base such as cytosine - thymine and uracil; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






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






31. A typical coelenterate individual with a hollow tubular body whose outer ectoderm is separated from its inner ectoderm by mesoglea






32. An anterior pituitary hormone that stimulates the follicles in females and the function of the seminiferous tubules in males






33. Process of aerobic respiration that fully harvests the energy of glucose; also known as the citric acid cycle






34. The central tissue of a stem - used for food storage






35. A fat or oil






36. In mitosis of higher plants - the structure that forms between the divided nuclei of the two daughter cells and eventually becomes the cell wall






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






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






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






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






41. The portion of a DNA molecule that serves as a unit of heredity; found on the chromosome






42. The study of the evolutionary descent and interrelations of groups of organisms






43. A decimal fraction that represents the presence of an allele for all members of a population that have a particular gene locus






44. The biome located between the polar region and the tiaga






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






46. The site of most digestion of nutrients and absorption of digested nutrients






47. An antipathogenic substance (e.g. - penicillin)






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






49. A "seed leaf"; responsible for food digestion and storage in plant embryo






50. Refers to protective covering