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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. The navel






2. A substance that is acted upon by an enzyme






3. A disease-causing organism






4. A remnant of follicle after ovulation that secretes the hormone progesterone






5. A stage of embryonic development in which the embryo consists of a hollow ball of cells






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






7. A process of asexual reproduction in which the offspring develop from an outgrowth of the plant or animal






8. One of the primary tissues of the embryo






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






10. The innermost tissue layer of the eyeball that contains light-sensitive receptor cells






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






12. An air sac in the lung; the site of respiratory exchange - involving diffusion of oxygen and carbon dioxide between the air in the alveolus and the blood in the capillaries






13. Tubules that excrete metabolic wastes into the hindgut in arthropods






14. The ways in which organisms regulate their supply of water






15. The hormone secreted by the corpus luteum of vertebrates and the placenta of mammals; its function is to maintain the endometrium






16. An association of homologous chromosomes during the first meiotic division






17. The phylum to which jointed-legged invertebrates belong - including insects - arachnids and crustaceans






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






19. One or two or more types of genes - each representing a particular trait; many alleles exist for a specific gene locus






20. 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






21. The second filial generation; offspring resulting from the crossing of individuals of the F1 generation






22. Structures in the testes that produce sperm and semen






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






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






25. The stable - biotic part of the ecosystem in which populations exist in balance with each other and with the environment






26. A stomach enzyme that partially digests proteins






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






28. A class of arthropods that includes scorpions - spiders - mites and ticks






29. The creation of certain strains of specific traits through control of breeding






30. A sensory hair structure in the utriculus and the sacculus of the inner ear; orients the head with respect to gravity






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






32. A mitotic stage in which nuclei reform and nuclear membrane reappears






33. A bone of the upper arm






34. The portion of alimentary canal connecting the pharynx and the stomach






35. A 12-carbon sugar that is formed by the union of two glucose units (a disaccharide)






36. Nonfunctional haploid cells created during meiosis in females; they have very little cytoplasm-most has gone into the functional egg cell






37. A marine biome typical of the open seas






38. The kind of bond formed when two amino acid units are jointed end to end






39. The posterior part of the brain that controls the rate of breathing and other autonomic functions






40. Any cell that is not a reproductive cell






41. The largest portion of the human brain; it is believed to be the center of intelligence - conscious thought and sensation






42. A habitat zone - such as desert - grassland or tundra






43. The basal branch of each spinal nerve; carries motor neurons






44. A cell resulting from the fusion of gametes






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






46. The movement of particles from one place to another as a result of their random motion






47. The liquid part of blood






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






49. Nonliving - as in the physical environment






50. The living matter of a cell - located between the cell membrane and the nucleus