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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. Unicellular organism with simple cell structure






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






3. A form of asexual reproduction in which the egg develops in the absence of sperm






4. The hindbrain region that controls equilibrium and muscular coordination






5. The ability to respond to a stimulus






6. A nitrogenous base such as adenine or guanine; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






7. A large molecule that is composed of many similar molecule units






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






9. Pertaining to a subdivision of the autonomic nervous system of vertebrates






10. A hydrogen carrier containing iron that functions in many cellular processes - including respiration






11. A network or mesh of fibrils - fibers or filaments






12. The outer layer of cerebral hemispheres in the forebrain - consisting of gray matter






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






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






15. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac






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






17. A structure that arises during mitosis and helps separate the chromosomes; composed of tubulin






18. In mammals - the slitlike opening formed by the vocal folds in the larynx






19. A complex carrier mechanism located on the inside of the inner mitochondrial membrane of the cell; releases energy and is used to form ATP






20. One of the two strands that constitute a chromosome; chromatids are held together by the centromere






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






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






23. An organism that is heterozygous for two different traits






24. Any cell capable of ingesting another cell






25. Any movement or growth of a living organism in response to the force of gravity






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






27. 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






28. The part of the body of an animal that is between the neck or head and the abdomen






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






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






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






32. A hormone that ripens fruit and induces aging






33. Describes an individual that possesses two contrasting alleles for a given trait






34. The more muscular chamber(s) of the heart that pump blood to the lungs and to the rest of the body






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






36. The sensory organ of the inner ear of mammals; it is coiled and contains the organ of corti






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






38. Encompasses the brain and the spinal cord






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






40. One of the paired lateral divisions of the forebrain






41. The vascular tissue of a plant that transports organic materials (photosynthetic products) from the leaves to other parts of the plant






42. An "emergency" hormone stimulated by anger or fear; increase blood pressure and heart rate in order to supply the emergency needs of the muscles






43. An organism that does not require free oxygen in order to respire






44. Refers to protective covering






45. In mammals - a flap of tissue above the glottis; it folds back over the glottis in swallowing to close the air passages of the lungs; contains elastic cartilage






46. 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






47. Protective immunity to a disease in which the individual produces antibodies as a result of previous exposure to the antigen






48. An enzyme that acts upon sucrose






49. A perforation leading from the pharynx to the outside environment that is a characteristic of chordates at one stage of their development






50. A microscopic - whiplike filament that serves as a locomotor structure in flagellate cells