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






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






3. Is the organelle where cellular reproductive processes occur.






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






5. Contains optic lobes - controls sight.






6. 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.






7. Produces the most ATP molecules - yielding 34 ATPs per glucose molecule.






8. Produce antibodies into the bloodstream that find and attach themselves to foreign antigens (toxins - bacteria).






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. Channels is cell membranes that carry water between cells.






11. Controls hunger and thirst






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






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






14. Is made of stacked cells connected by sieve plates that allow nutrients to pass from cell to cell. They transport food made in the leaves (by photosynthesis) to the rest of the plant).






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






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






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






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






19. The phyla of sponges.






20. Covers and protects the leaf.






21. Anabolism






22. 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.






23. Is a phylum that contains sponges.






24. The sharp boundary of an ecosystem.






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






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






27. Secretes insulin to lower blood sugar and maintain equilibrium. A person eats three candy bars. Within minutes this endocrine gland affects blood-glucose homeostasis.






28. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).






29. Breaking down






30. Are the organelles where cellular respiration occurs.






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






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






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






34. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.






35. 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.






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






37. The transfer of electrons.






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






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






40. Layer that will become the skin - some endocrine glands - and the nervous system.






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






42. Develops from the morula as a thin layer of cells surrounding an internal cavity.






43. Is the sugar that lactase acts upon.






44. Controls balance and muscle coordination






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






46. Is a molecule that stores information for protein synthesis and genetic coding.






47. Small - green - heart-shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil






48. Enzymes are usually __________ to certain reactions.






49. 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.






50. Ended with the extinction of the dinosaurs.