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






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






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






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






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






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






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






8. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.






9. Respiratory organs within insects






10. The phylum of insects (bees).






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






12. Some energy is lost as heat and becomes unusable.






13. High temperatures






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






15. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.






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






17. Is found on the stem between nodes.






18. 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.






19. Is a phylum that contains sponges.






20. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting






21. Ended with the extinction of the dinosaurs.






22. Breaking down






23. A suffix meaning 'to break apart.' O || ||






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






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






26. Is the sugar that lactase acts upon.






27. Synthesis






28. 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.






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






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






31. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.






32. Are membrane-bound organelles that contain digestive enzymes that digest dead or unused material within the cell or materials absorbed by the cell for use.






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






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






35. Becomes available for erosion as undersea sedimentary rocks are up-thrust by volcanic activity - erosion releases it from rocks into streams where it combines with oxygen to form phosphates in lakes that are then absorbed by plants - it is recycled t






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






37. The sharp boundary of an ecosystem.






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






39. The individual we recognize as an adult fern.






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






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






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






43. Are where the sugars synthesized by photosynthesis travel through to various parts of the plant.






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






45. Cleave strands of DNA segments at certain sites.






46. The vocal cords are found in the larynx.






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






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






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






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