Test your basic knowledge |

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. Carbon - Hydrogen - Oxygen - and Nitrogen






2. Some energy is lost as heat and becomes unusable.






3. Enzymes are usually __________ to certain reactions.






4. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.






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






6. 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.






7. Breaking down






8. Allows for the genetic code to be preserved in future generations of cells.






9. Respiratory organs within insects






10. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.






11. Nonvascular plants such as mosses which lack tissue for conducting food or water.






12. Is the outermost layer of cells of the stem.






13. Cleave strands of DNA segments at certain sites.






14. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.






15. Is weaker than ionic - covalent - disulfide - or double bonds.






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






17. Disease causing






18. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.






19. Is the waxy protective outer coating of leaves.






20. Is found on the stem between nodes.






21. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.






22. Are the organelles where cellular respiration occurs.






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






24. Is found in the root cap and is responsible for quick growth in the roots.






25. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting






26. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






27. Is the outermost of the three main layers of an embryo.






28. Contain one celled eukaryotes such as algae and protozoa.






29. The preservation of the integrity of genetic information from one generation to another.






30. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.






31. Is a phylum that contains jellyfish - hydra - etc.






32. 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.






33. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.






34. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.






35. Has extreme hot or cold temperatures - with very low precipitation - sandy or rocky terrain - sparse vegetation (mainly succulents) - small animals - rodents - and reptiles.






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






37. Energy transformations that occur as chemicals are broken down or synthesized within the cell.






38. Fruits that develop from a single ripened ovary (apple - olive - acorn - cucumber).






39. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.






40. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






41. The number of organisms in a given community - can be above or below the carrying capacity.






42. Is the sugar that lactase acts upon.






43. 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






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






45. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.






46. Are formed when the plasma membrane of a cell encloses a molecule outside the membrane - then releases a membrane bound sack containing the desired molecule into the cytoplasm. This process allows the cell to absorb molecules that are larger in size






47. Fossilized burrows from multicellular organisms begin to appear in the geological record approximately 700 million years ago during the Precambrian period. These multicellular animals had only soft parts and could not be fossilized.






48. 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






49. The destruction of gametes - (sex cells such as sperm and eggs).






50. Is a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).