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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. 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.






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






3. 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.






4. Controls hunger and thirst






5. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t






6. Is a kingdom that includes algae and protozoa.






7. The vocal cords are found in the larynx.






8. Occurs when an individual learns not to respond to a particular stimulus - for instance when a stimulus is repeated many times without consequence.






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






10. Synthesis






11. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.






12. Assumes that there are periods of stability during which little evolutionary change occurs - and that speciation can occur rapidly over a very short period of time.






13. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.






14. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






15. 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.






16. 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.






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






18. 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






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






20. The transfer of electrons.






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






22. Absorb a photon of light and is found in the grana of the chloroplast.






23. The phylum of insects (bees).






24. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).






25. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).






26. 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.






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






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






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






30. Covers and protects the leaf.






31. The class composed of birds.






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






33. Ended with the extinction of the dinosaurs.






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






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






36. Process of breaking down complex materials (foods) to form simpler substances and release energy.






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






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






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






41. An enzyme is unaffected by the reactions it catalyzes






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






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






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






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






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






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






48. Engages in both passive and active transport.






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






50. Studied the relationships between traits expressed in parents and offspring and the genes that caused the traits to be expressed.