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






2. Substance secreted by organisms that influences the behavior of other members of the same species






3. The process by which environmental patterns or objects presented to a developing organism during a "critical period" of its growth is accepted as a permanent element of its behavior






4. Any cell capable of ingesting another cell






5. Related to the sense of smell






6. Semen






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






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






9. The junction or gap between the axon terminal of one neuron and the dendrites of another neuron






10. The enzyme that acts upon lactose






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






12. The inner part of the adrenal gland that secretes adrenalin






13. Fluid skeleton of annelids






14. A tract of nerve fibers connecting the two cerebral hemispheres






15. An accumulation of axons within the CNS that is white because it is fatty - myelin sheath






16. An organic cofactor required for enzyme activity






17. The hormone secreted by the corpus luteum of vertebrates and the placenta of mammals; its function is to maintain the endometrium






18. A process by which the cell membrane is invaginated to form a vesicle which contains extracellular medium






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






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






21. The loss of all or part of a chromosome






22. The portion of seed plant embryo above the cotyledon






23. An invertebrate animal phylum in which animals possess a single alimentary opening and tentacles with stinging cells






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






25. An individual that is heterozygous for only one trait






26. Fluid in the eye - found between the cornea and the lens






27. The navel






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






29. The ability to respond to a stimulus






30. The process by which carbohydrates are formed through chemical energy; found in bacteria






31. Fluid-filled structures in the inner ear that are associated with the sense of balance






32. A response by an organism to the duration and timing of light and dark conditions






33. A short - stubby rod consisting of chromatin that is found in the nucleus of the cells; contains the genetic or hereditary component of cells (in the form of genes)






34. A process by which the vesicle in the cell fuses with the cell membrane and releases its contents to the outside






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






36. An organic compound to which hydrogen and oxygen are attached; the hydrogen and oxygen are in a 2:1 ratio; examples include sugars - starches and cellulose






37. Different relationships that are formed in proteins between the original sequence of amino acids and more complex three-dimensional compounds






38. An undifferentiated - growing region of a plant that is constantly undergoing cell division and differentiation






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






40. Describes an individual that has the same gene for the same trait on each homologous chromosome






41. An organelle that regulates cell functions and contains the genetic material of the cell






42. A stage of embryonic development characterized by the differentiation of the cells into the ectoderm and endoderm germ layers and by the formation of the archenteron






43. A pyrimidine component of nucleic acids and nucleotides; pairs with adenine in DNA






44. A form of anaerobic respiration found in yeast and bacteria






45. A specialized structure that controls osmotic pressure by removing water from the cell






46. A behavioral or biological change that enables an organism to adjust to its environment






47. The area of medulla that regulates the rate of breathing






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






49. A gland composed of two parts - anterior and posterior - each with its own secretions; called the "master gland" because its hormones stimulate secretions by other glands






50. 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