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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 wall composed of cellulose that is external to the cell membrane in plants; it is primarily involved in support and in the maintenance of proper internal pressure






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






3. A constituent of the plasma of the blood of vertebrates; it is converted to thrombin by thrombokinase in the presence of calcium ions - thus contributing to the clotting of blood






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






5. An organelle that regulates cell functions and contains the genetic material of the cell






6. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male






7. The sensory branch of each spinal nerve






8. Fluid-filled structures in the inner ear that are associated with the sense of balance






9. Bacteria that are rod shaped






10. The instance of polymorphism in which there is a difference of form between two members of a species - as between males and females






11. A space in the cytoplasm of a cell that contains fluid






12. The small granular body within the centrosome to which the spindle fibers attach






13. A process by which the cytoplasm and the organelles of the cell divide; the final stage of mitosis






14. Any cell that is not a reproductive cell






15. 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)






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






17. An organ that stores bile






18. A condition in which an organism may have a multiple of the normal number of chromosomes (4n - 6n - etc)






19. Pertaining to a subdivision of the autonomic nervous system






20. The process by which environmental patterns or objects presented to a developing organism during a "critical period" of its growth is accepted as a permanent element of its behavior






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






22. The pairing of homologous chromosomes during meiosis






23. A gland composed of two parts - anterior and posterior - each with its own secretions; called the "master gland" because its hormones stimulate secretions by other glands






24. A plastid containing chlorophyll






25. A five carbon sugar that has one oxygen atom less than ribose; a component of DNA






26. Fluid in the eye - found between the cornea and the lens






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






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






29. Technology that allows for manipulation of genetic material






30. The state in which two genetic traits are fully expressed and neither dominates






31. Any organism that is the victim of a parasite






32. An animal phylum in which all members have a notochord - dorsal nerve cord and pharyngeal gill slits at some embryonic stage; includes the Cephalochordata and the Vertebrates






33. The final stages of protein synthesis in which the genetic code of nucleotide sequences is translated into a sequences of amino acids






34. A nitrogen base such as cytosine - thymine and uracil; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






35. The study of all living processes - activities and functions






36. An opening in the eye whose size is regulated by the iris






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






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






39. Pertaining to the head






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






41. Genetic blending; each allele exerts some influence on the phenotype






42. 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






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






44. The inner layer of an organ surrounded by the cortex






45. A cell that divides to form the polar body and the secondary oocyte






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






47. An anterior pituitary hormone that stimulates the follicles in females and the function of the seminiferous tubules in males






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






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






50. An embryonic structure that gives rise to the central nervous system






Can you answer 50 questions in 15 minutes?



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