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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. An organism that possesses one or more whiplike appendages called flagella






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






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






4. One of a group of compounds that is identical in a atomic composition - but different in structure and arrangement






5. Multicellular organism






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






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






8. An organic compound to which hydrogen and oxygen are attached; the hydrogen and oxygen are in a 2:1 ratio; examples include sugars - starches and cellulose






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






10. In mitosis of higher plants - the structure that forms between the divided nuclei of the two daughter cells and eventually becomes the cell wall






11. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait






12. 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






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






14. An enlargement of the thyroid gland due to lack of iodine






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






16. Globular proteins produced by tissues that destroy or inactivate antigens






17. Passively floating or drifting flora and fauna of a body of water; consists mainly of microscopic organisms






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






19. The science of classification of living things






20. A duct through which the urine passes from the bladder to the outside






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






22. A behavioral or biological change that enables an organism to adjust to its environment






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






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






25. Plant tissue consisting of large thin-walled cells for storage






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






27. The outermost - extra-embryonic membrane of reptiles and birds






28. The enzyme released from the blood platelets in vertebrates during clotting






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






30. A metabolic stage between mitoses in which genetic material is reproduced






31. Daily cycles of behavior






32. A complex carrier mechanism located on the inside of the inner mitochondrial membrane of the cell; releases energy and is used to form ATP






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






34. Occurs when certain traits are determined by genes on sex chromosomes






35. Encompasses the brain and the spinal cord






36. A vacuole in the cytoplasm in which digestion takes place (in protozoans)






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






38. The hindbrain region that controls equilibrium and muscular coordination






39. Describes organisms that are cooperative in action - such as hormones or other growth factors that reinforce each other's activity






40. Chemical groups attached to carbon skeletons that give compounds their functionality






41. An organelle that contains enzymes that aid in intracellular digestion






42. Compounds in bile that aid in emulsification






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






44. The recycling of carbon from decaying organisms for use in future generations






45. A dense fluid within the chloroplast in which CO2 is converted into sugars in photosynthesis






46. 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






47. 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






48. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species






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






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