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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. Small - disc-shaped bodies in the blood that play a chief role in coagulation






2. The microspore of a seed plant






3. Living - as in living organisms in the environment






4. 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






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






6. Nonliving - as in the physical environment






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






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






9. The haploid - sexual stage in the life cycle of plants






10. A structure in animal cells containing centrioles from which the spindle fibers develop






11. The production of daughter cells by means other than the sexual union of gametes (as in budding and binary fission)






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






13. A body fluid that flows in its own circulatory fluid in lymphatic vessels separate from blood circulation






14. A cell that divides to form two secondary spermatocytes






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






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






17. 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






18. A process of cell division whereby each daughter cell receives only one set of chromosomes; the formation of gametes






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






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






21. The system of naming an organism by its genus and species name






22. A process of photosynthesis in which water is split into H+ and OH-; the hydrogen ion is then joined to NADP






23. The most anterior portion of the small intestine of vertebrates - adjacent to the stomach; the continuation of the stomach into which the bile duct and pancreatic duct empty






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






25. A membrane that envelopes the nucleus and separates it from the cytoplasm; present in eukaryotes






26. One of the primary tissues of the embryo






27. A dark-staining small body within the nucleus; composed of RNA






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






29. Organism that produces its own food; first stage in the food chain






30. An endocrine gland of vertebrates - usually paired - and located near or within the thyroid that secretes parathormone - which controls the metabolism of calcium






31. Membranous organelles involved in the storage and modification of secretory products






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






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






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






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






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






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






38. An organ that stores bile






39. The sac in the ovary in which the egg develops






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






41. The pairing of homologous chromosomes during meiosis






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






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






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






45. 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






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






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






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






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






50. The uppermost portion of pistil upon which pollen grains alight