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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. Nonliving - as in the physical environment






2. The reproductive organ that produces sex cells






3. A chemical messenger that is secreted by one part of the body and carried by the blood to affect another part of the body - usually a muscle or gland






4. Usually referred to as ACTH and secreted by the anterior lobe of the pituitary gland; stimulates the adrenal cortex to produce its characteristic hormones






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






6. A mucus-secreting membrane






7. A stage of embryonic development in which the embryo consists of a hollow ball of cells






8. A metabolic stage between mitoses in which genetic material is reproduced






9. An organ that stores bile






10. An organism that must get its inorganic and organic raw materials from the environment; a consumer






11. The part of the alimentary canal between the mouth and the esophagus






12. 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






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






14. A cell that divides to form two secondary spermatocytes






15. An air-conducting tube






16. An individual that is heterozygous for only one trait






17. Any chromosome that is not a sex chromosome






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






19. The recycling of nitrogen from decaying organism for use in future generations






20. A plant growth hormone






21. A structure that extends from the trunk of an organism and is capable of active movements






22. The genetic makeup of an organism without regard to physical appearance






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






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






25. A plastid containing chlorophyll






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






27. The primary germ layer - developed from the lip of the blastopore - that gives rise to the skeleton - the circulatory system and many organs and tissues between the epidermis and the epithelium






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






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






30. A nuclear protein of chromosomes that stains readily






31. 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






32. A dark-staining small body within the nucleus; composed of RNA






33. A hormone that ripens fruit and induces aging






34. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage






35. 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)






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






37. A lateral region of the forebrain






38. A substance that is acted upon by an enzyme






39. The mammalian oviduct that leads from the ovaries to the uterus






40. The ability of certain animals to regrow missing body parts






41. A carbohydrate that is composed of many monosaccharide units joined together






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






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






44. The outermost - extra-embryonic membrane of reptiles and birds






45. An animal with a constant body temperature






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






47. The largest portion of the human brain; it is believed to be the center of intelligence - conscious thought and sensation






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






49. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter






50. Cytoplasmic bodies within a plant cell that are often pigmented