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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. Is a social behavior of an organism that is beneficial to the group at the individual's expense.






2. 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.






3. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.






4. Synthesis






5. Is the number of organisms that can be supported within a particular ecosystem.






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






7. Are the organelles where cellular respiration occurs.






8. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






9. 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.






10. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.






11. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.






12. Are tubes constructed of a geometrical arrangement of microtubules in a pinwheel shape. Their function includes the formation of new microtubules - but is primarily to form the structural skeleton around which cells split during mitosis and meiosis.






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






14. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.






15. 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.






16. The most recent and present era. It includes the radiation of flowering plants - the angiosperms.






17. Covalent bonds






18. An orienting response to light.






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






20. Is a special protein that acts as a catalyst for organic reactions.






21. Channels is cell membranes that carry water between cells.






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






23. Has an equal (50%) chance of being passed from a carrier mother to a son or a daughter.






24. Transparency - polarity - high specific heat - and density (lower density when solid than when liquid.).






25. Is found on the stem between nodes.






26. Are easily converted to ATP - but the main energy products of the Krebs cycle liberate electrons then used in the electron transfer reactions.






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






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






29. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






30. The role played by an organism in its food chain.






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






32. Layer that will become the gut lining as well as some accessory structures.






33. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.






34. Produce adrenaline. This hormone is a well-known constrictor of blood vessels.






35. Contains optic lobes - controls sight.






36. 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






37. Inorganic phosphate






38. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.






39. Is disorganized - unravelled - DNA with histones attached.






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






41. Ended with the extinction of the dinosaurs.






42. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.






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






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






45. 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.






46. 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).






47. Is the process that releases energy for use by the cell.






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






49. Some enzymes contain a __________ component that is essential to their functions.






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