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






2. Must be present for photosynthesis to occur - it is not used up in the process.






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






4. 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).






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






6. 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).






7. In DNA Thymine pairs with...






8. Carbon - Hydrogen - Oxygen - and Nitrogen






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






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






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






12. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).






13. Are the organelles where cellular respiration occurs.






14. Breaking down






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






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






17. The individual we recognize as an adult fern.






18. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.






19. Ended with the extinction of the dinosaurs.






20. 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.






21. Is a behavior that is learned during a critical point (often very early) in an individual's life. Imprinting enables the young the recognize members of their own species.






22. The phyla of round worms.






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






24. Most fossils of Hominids are from continents other than...






25. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






26. Is a phylum that contains sponges.






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






28. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






29. 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






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






31. 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.






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






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






34. 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.






35. Veins in the leaf and are also distributed throughout the stem






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






37. Is a substance that changes the speed of a reaction without being affected itself.






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






39. An orienting response to light.






40. Controls hunger and thirst






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






42. The size of a cell is limited by the ratio of its surface area to volume.






43. Contains many genes and is a structure comprised of linear DNA and associated proteins.






44. Covalent bonds






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






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






47. Process of breaking down complex materials (foods) to form simpler substances and release energy.






48. Enzymes are usually __________ to certain reactions.






49. 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






50. Decomposition of living matter for consumption.