Test your basic knowledge |

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. A disease-causing organism






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






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






4. A hormonal secretion of the adrenal cortex






5. A nerve cell






6. The exchange of parts of homologous chromosomes during meiosis






7. A sugar composed of two combined monosaccharides






8. A structure formed by the wall of the uterus and the chorion of the embryo; serves as the area in which the embryo obtains nutrition from the parent






9. A mucus-secreting membrane






10. 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)






11. The colored part of the eye that is capable of contracting and regulating the size of the pupils






12. A plant that has a single cotyledon or seed-leaf






13. An abbreviation of nicotinamide-adenine-dinucleotide - also called DPN; a respiratory oxidation-reduction molecule






14. A substance that is acted upon by an enzyme






15. Cycle in photosynthesis that reduces fixed carbon to carbohydrates through the addition of electrons ("dark cycle")






16. A substance that participates in the clotting of blood in vertebrates






17. Encompasses the brain and the spinal cord






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






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






20. A portion of the CNS consisting of cytons (cell bodies) - their dendrites and synaptic connections






21. A white or colorless - amorphous - horny substance that forms part of the outer integument of insects - crustaceans and some other invertebrates; it also occurs in certain fungi






22. A hoofed animal






23. A plant that has two seed leaves or cotyledons






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






25. A mass of cells that have similar structures and perform similar functions






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






27. An organic cofactor required for enzyme activity






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






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






30. A plant that belongs to the class of seed plants in which the seeds are not enclosed in an ovary; includes the conifers






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






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






33. The loss of all or part of a chromosome






34. Semen






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






36. The ability of an organism to contribute its alleles and therefore is phenotypic traits to future generations






37. Multicellular organism






38. The swelling at the end of an axon






39. The sac in the ovary in which the egg develops






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






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






42. A jellyfish






43. The pollination of the pistil of one flower with pollen from the stamen of a different flower of the same species






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






45. The largest artery; carries blood from the left ventricle






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






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






48. The coagulation of blood caused by the rupture of platelets and the interaction of fibrin - fibrinogen - thrombin - prothrombin and calcium ions






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






50. The contraction of the atria or ventricles of the heart