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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 cold temperatures - low precipitation - modified grassland - perma-frost - a short growing season and some plants and animals.






2. An orienting response to light.






3. Disease causing






4. Inorganic phosphate






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






6. 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.






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






8. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.






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






10. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).






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






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






13. 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.






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






15. Is a packet of digestive enzymes that destroy cellular wastes.






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






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






18. Is a coenzyme required in the synthesis of collagen.






19. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.






20. The phyla of round worms.






21. The phyla of sponges.






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






23. The preservation of the integrity of genetic information from one generation to another.






24. Niche






25. Digestive enzymes - hydrochloric acid - and gastric juices which aid in digestion. The mucous secreted by the stomach protects the stomach lining from the acids and juices.






26. 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.






27. In DNA Guanine pairs with...






28. The phyla composed of segmented worms.






29. The phylum of insects (bees).






30. Is a molecule that stores information for protein synthesis and genetic coding.






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






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






33. Fruits that develop from a single ripened ovary (apple - olive - acorn - cucumber).






34. 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).






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






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






37. 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).






38. High temperatures






39. 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






40. What phylum are snakes in?






41. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.






42. 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






43. 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.






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






45. Covers and protects the leaf.






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






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






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






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






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