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CLEP Biology

Subjects : clep, 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. Energy transformations that occur as chemicals are broken down or synthesized within the cell.






2. When the water concentration inside and outside the cell is equal - It is said to be in an...






3. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.






4. Covers and protects the leaf.






5. Are organic cofactors or coenzymes that are required by some enzymatic reactions.






6. Enzymes are usually __________ to certain reactions.






7. Contains multicellular photosynthetic eukaryotic organisms including gymnosperms and angiosperms.






8. The cells of a developing embryo (at the gastrula stage) differentiate into layers - that will later develop into different tissues and organs - including the mesoderm - ectoderm - and endoderm.






9. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.






10. Absorb a photon of light and is found in the grana of the chloroplast.






11. Most chemical pollutants accidentally ingested by humans are __________ - mixed with broken down pigments in the bile - then bile is secreted into the small intestine - proceeds to the large intestine - and is expelled in the feces.






12. The systematic search for individuals with a specific genotype in a delineated population.






13. Respiratory organs within insects






14. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.






15. Digestive enzymes - hydrochloric acid - and gastric juices which aid in digestion. The mucous secreted by the stomach protects the stomach lining from the acids and juices.






16. Chlorophyll pigments absorb photons of light - leaving the chlorophyll in a higher energy (excited) state - these then supply energy to reactions that produce ATP from ADP and Pi.






17. A suffix meaning 'to break apart.' O || ||






18. All store energy within their chemical bonds.






19. The effect of a substrate concentration on the initial reaction rate in the presence of a limited amount of enzyme: _________________ as the concentration of substrate is increased until all the enzymes are used - then the reaction rate will level of






20. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.






21. This is a carboxyl group and is the signature group found within organic acids.






22. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).






23. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.






24. Super-class of vertebrae including organisms with jaws.






25. Can be accounted for by the theory of punctuated equilibrium. The fossil record shows periods of stability with regard to appearance and disappearance of species as well as periods of sudden change.






26. Refers to the birthrate of a population.






27. The process of forming eggs and sperm cells in the reproductive organs.






28. Anabolism






29. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.






30. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.






31. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.






32. The individual we recognize as an adult fern.






33. The total amount of genetic information available for a given species.






34. Covalent bonds






35. In both living and non-living environments.






36. Biotic (living) factors such as population and food source - and abiotic (non-living) factors such as weather - temperature - soil features - sunlight).






37. Proposes that those individuals within a population that are most adapted to the environment are also the most likely individuals to produce viable offspring.






38. Becomes available for erosion as undersea sedimentary rocks are up-thrust by volcanic activity - erosion releases it from rocks into streams where it combines with oxygen to form phosphates in lakes that are then absorbed by plants - it is recycled t






39. The transfer of electrons.






40. An orienting response to light.






41. States that where random mating is occurring within a population that is in equilibrium with its environment - the gene frequencies and genotype ratios will remain constant from generation to generation. It is a mathematical formula that shows why re






42. Stood upright before there was an increase in brain size.






43. Has loosely packed cells that allow for gas and moisture exchange.






44. In order to become an established part of an island ecosystem there must be a populations large enough to ensure _________ - a food source - a suitable habitat - and a source of moisture.






45. Studied the relationships between traits expressed in parents and offspring and the genes that caused the traits to be expressed.






46. The class composed of birds.






47. (of some plants or fungi) feeding on dead or decaying organic matter






48. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.






49. Synthesis






50. Is the control of protein synthesis. Genetic traits are expressed and specialization of cells occur as a result of the combination of proteins produced by the DNA of a cell.