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






2. Is a phylum that contains sponges.






3. Is composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.






4. 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.






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






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






7. May be ions or non-protein molecules - they are similar to cofactors - but differ in that they are tightly attached by covalent bonds to the enzyme - rather than being separate atoms or molecules.






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






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






10. In both living and non-living environments.






11. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.






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






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






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






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






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






17. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.






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






19. 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.






20. Assumes that there are periods of stability during which little evolutionary change occurs - and that speciation can occur rapidly over a very short period of time.






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






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






23. Algae and Protozoa belong to the kingdom...






24. Controls hunger and thirst






25. Is found on the stem between nodes.






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






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






28. The large brain and upright posture of Homo Sapiens...






29. Is the sugar that lactase acts upon.






30. Is secreted by the adrenal cortex to promote sodium reabsorption in the kidney.






31. Decomposition of living matter for consumption.






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






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






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






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






36. 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.






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






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






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






40. 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).






41. Enzymes are usually __________ to certain reactions.






42. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).






43. 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.






44. In DNA Guanine pairs with...






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






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






47. The individual we recognize as an adult fern.






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






49. The pituitary gland.






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