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






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






3. Is the sugar that lactase acts upon.






4. The phyla of sponges.






5. 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






6. Respiratory organs within insects






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






8. Ended with the extinction of the dinosaurs.






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






10. Chlorophyll pigments absorb photons of light - leaving the chlorophyll in a higher energy (excited) state - these then supply energy to reactions that produce ATP from ADP and Pi.






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






12. When stems bend toward the light it is due to _____________ the hormone auxin - in response to light - migrates from the light to the dark side of the shoot tip. The cells on the dark side now contain more auxin - which causes the cells on that side






13. Is an ion that binds to an enzyme making it more able to catalyze a reaction.






14. Cleave strands of DNA segments at certain sites.






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






16. Decomposition of living matter for consumption.






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






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






19. Is a phylum that contains sponges.






20. Protein synthesis






21. 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.






22. Synthesis






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






24. The phyla of round worms.






25. 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).






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






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






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






29. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.






30. The systematic search for individuals with a specific genotype in a delineated population.






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






32. Attaches to an enzyme and blocks the enzyme reaction rather than enhancing it - like a prosthetic group would.






33. Process in which elements - chemical compounds - and other forms of matter are passed from one organism to another and from one part of the biosphere to another.






34. Super-class of vertebrae including organisms with jaws.






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






36. A hydrogen bond involves the ________________ and can be easily broken.






37. Transfers water and does not require sieve plates to allow nutrients through.






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






39. The phylum of insects (bees).






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






41. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.






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






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






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






47. 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.






48. Covalent bonds






49. Covers and protects the leaf.






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