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






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






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






4. Engages in both passive and active transport.






5. 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.






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






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






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






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






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






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






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






13. The pituitary gland.






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






15. Controls balance and muscle coordination






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






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






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






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






20. Are produced when water passes through the cell membrane by osmosis from an area of higher concentration to an area of lower concentration - to equalize water concentration.






21. 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.






22. In both living and non-living environments.






23. 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






24. Refers to the birthrate of a population.






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 found on the stem between nodes.






27. Are cells involved in immunity and are produced in bone marrow as stem cells.






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






29. An enzyme is unaffected by the reactions it catalyzes






30. Covers and protects the leaf.






31. Ended with the extinction of the dinosaurs.






32. The phylum of insects (bees).






33. Are surrounded by capillaries that allow for carbon dioxide to diffuse into the lungs and oxygen to diffuse out.






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






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






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






37. In DNA Thymine pairs with...






38. Are easily converted to ATP - but the main energy products of the Krebs cycle liberate electrons then used in the electron transfer reactions.






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






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






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






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






43. What phylum are snakes in?






44. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.






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






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






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






48. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.






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






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