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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 "seed leaf"; responsible for food digestion and storage in plant embryo






2. A lateral region of the forebrain






3. A pyrimidine component of nucleic acids and nucleotides; pairs with adenine in DNA






4. A fatty sheath surrounding the axon of a neuron that aids in stimulus transmission; it is secreted by the Schwann cells






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






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






7. A response by an organism to the duration and timing of light and dark conditions






8. The orientation of cells or organisms in relation to chemical stimuli; the growth or movement response of organisms to chemical stimuli






9. The triploid tissue in some seeds that contains stored food and is formed by the union of one sperm nucleus with two nuclei of the female's gametophyte






10. A chemical messenger that is secreted by one part of the body and carried by the blood to affect another part of the body - usually a muscle or gland






11. 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






12. A stage of mitosis; chromosomes line up at the equator of the cell






13. A sugar composed of two combined monosaccharides






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






15. Refers to protective covering






16. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






17. An invertebrate animal phylum in which animals possess a single alimentary opening and tentacles with stinging cells






18. A fluid-filled sensory apparatus that aids balance and hearing






19. A hoofed animal






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






21. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions






22. A female sex hormone secreted by the follicle






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






24. Related to the sense of smell






25. 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






26. A network of capillaries in the Bowman's capsules of the kidney






27. A nerve cell






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






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






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






31. Changes in genes that are inherited






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






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






34. Describes a fluid that has a higher osmotic pressure than another fluid it is compared to






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






36. The ourter part of the adrenal gland that secretes many hormones - including cortisone and aldosterone






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






38. The extraembyonic membrane of birds - reptiles and mammals that serves as an area of gaseous exchange and as a site for the storage of noxious excretion products






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






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






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






42. An organ that is not functional in an organism - but was functional at some period in its evolution






43. A hormone of the thyroid that regulates basal metabolism






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






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






46. An anucleate red blood cell that contains hemoglobin






47. A resistance to disease produced through the injection of antibodies






48. A cell in the retina that is sensitive to weak light






49. A pyrimidine found in RNA (but not DNA); pairs with DNA adenine






50. An abbreviation of nicotinamide-adenine-dinucleotide - also called DPN; a respiratory oxidation-reduction molecule