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






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






3. Enzymes are usually __________ to certain reactions.






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






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






6. 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.






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






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






9. Nonvascular plants such as mosses which lack tissue for conducting food or water.






10. 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.






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






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






13. Synthesis






14. 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






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






16. Contains organisms that are multicellular eukaryotes including molds and mushrooms.






17. High temperatures






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






19. Disease causing






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






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






22. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.






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






24. 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.






25. 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.






26. Proposes that those individuals within a population that are most adapted to the environment are also the most likely individuals to produce viable offspring.






27. Inorganic phosphate






28. Is the number of organisms that can be supported within a particular ecosystem.






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






30. The vocal cords are found in the larynx.






31. 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).






32. In DNA Guanine pairs with...






33. 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.






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






35. 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.






36. Cleave strands of DNA segments at certain sites.






37. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.






38. The phyla composed of segmented worms.






39. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.






40. Respiratory organs within insects






41. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






42. This is a carboxyl group and is the signature group found within organic acids.






43. Ended with the extinction of the dinosaurs.






44. Niche






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






46. 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.






47. The phyla of sponges.






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






49. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.






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






Can you answer 50 questions in 15 minutes?



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