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. An organelle that contains enzymes that aid in intracellular digestion






2. A fat or oil






3. 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






4. Pertaining to a restricted locality; ecologically - occurring only in one particular region






5. Pertaining to a subdivision of the autonomic nervous system






6. A bony or chitinous case or shield covering the back or part of the back of an animal (shell of a crab)






7. 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






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






9. The removal of an amino group from an organism - particularly from an amino acid






10. Structures in the testes that produce sperm and semen






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






12. A section of the posterior forebrain associated with the pituitary gland






13. The fusion of sperm and the egg to produce a zygote






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






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






16. A nuclear protein of chromosomes that stains readily






17. Cytoplasmic organelles that serve as sites of respiration; a rod-shaped body in the cytoplasm known to be the center of cellular respiration






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






19. A colloidal system involving the dispersion of a liquid within a liquid






20. Degree of penetrability - as in membranes that allow given substances to pass through; the ability to penetrate






21. The hindbrain region that controls equilibrium and muscular coordination






22. A reproductive cell that is capable of developing directly into an adult






23. Functional urinary tubules responsible for excretion in the kidney of vertebrates






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






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






26. An organic cofactor required for enzyme activity






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






28. A large class of arthropods - including crabs and lobsters






29. A flexible - supportive rod running longitudinally through the dorsum ventral to the nerve cord; found in lower chordates and in the embryos of vertebrates






30. A blood vessel that carries blood away from the heart






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






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






33. A cell that divides to form two secondary spermatocytes






34. A hormonal secretion of the adrenal cortex






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






36. One of a pair of kidney-shaped cells that surround a stomate and regulate the size of the stomate in a leaf






37. The description of a plant life cycle that consists of a diploid - asexual - sporophyte generation and a haploid - sexual - gametrophyte generation






38. An enzyme from the pancreas that digests proteins in the small intestine






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






40. The transfer of pollen to the micropyle or to a receptive surface that is associated with an ovule (such as stigma)






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






42. Compounds in bile that aid in emulsification






43. An organ that stores bile






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






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






46. Any chromosome that is not a sex chromosome






47. Undifferentiated tissue in the stem of a plant that aids growth in width






48. The removal of hydrogen or electrons from a compound or addition of oxygen; half of a redox (oxidation or reduction) process






49. The fluid that remains after fibrinogen is removed from the blood plasma of vertebrates






50. An ion with a positive charge - or an ion that migrates towards the cathode (negative electrode) in an electric field