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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. A hormone that regulates water reabsorption






2. A four-letter code made up of the DNA nitrogen bases A - T - G and C; each chromosome is made up of thousands of these bases






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






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






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






6. A specialized structure that carries out particular functions for eukaryotic cells






7. A plant growth hormone






8. 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)






9. A duct through which the urine passes from the bladder to the outside






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






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






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






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






14. A starch form in animals; glucose is converted to this in the liver






15. An offspring that is heterozygous for one or more gene pairs






16. A flesh-eating animal; a holotrophic animal that subsists on other animals or parts of animals






17. 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






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






19. Asexual reproduction; in this process - the parent organism splits into two equal daughter cells






20. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes






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






22. The female gamete; it is nonmotile - large in comparison to male gametes - and stores nutrients






23. An organism that possesses one or more whiplike appendages called flagella






24. Secreted by the anterior pituitary gland - this hormone stimulates the conversion of a follicle into the corpus luteum and the secretion of progesterone by the corpus luteum






25. The intake of food from the environment into the alimentary canal






26. A disease-causing organism






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






28. The enzyme released from the blood platelets in vertebrates during clotting






29. A female sex hormone secreted by the follicle






30. An abbreviation of nicotinamide-adenine-dinucleotide-phosphate - also called TPN; an organic compound that serves as an oxidation-reduction molecule






31. Protein threads that form in the blood during clotting






32. One of the primary tissues of the embryo






33. An organ centrally involved in the human digestive system






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






35. The enzyme that acts upon lactose






36. The pressure exerted by the contents of a cell against the cell membrane or cell wall






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






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






39. The elimination of metabolic waster matter






40. The separation of homologous pairs of chromosomes following meiotic synapsis






41. The portion of alimentary canal in which some protein digestion occurs






42. A thyroid deficiency that results in stunted growth and feeblemindedness






43. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






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






45. Describes cells that have a double set of chromosomes in homologous pairs (2n)






46. Plant growth stimulated by light (stem: + - towards light; root: - - away from light)






47. The phylum to which segmented worms belong






48. A period in the development of animals between the embryo and adult stages; starts at hatching and ends in metamorphasis






49. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait






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