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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. In DNA Thymine pairs with...






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






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






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






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






6. It secretes saliva which enters the digestive tract and aids the digestive process.






7. The process of forming eggs and sperm cells in the reproductive organs.






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






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






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






11. Decomposition of living matter for consumption.






12. 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.






13. Is the sugar that lactase acts upon.






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






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






16. Controls balance and muscle coordination






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






18. All store energy within their chemical bonds.






19. 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.






20. The most recent and present era. It includes the radiation of flowering plants - the angiosperms.






21. 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).






22. Protein synthesis






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






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






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






26. An orienting response to light.






27. The individual we recognize as an adult fern.






28. The transfer of electrons.






29. Respiratory organs within insects






30. 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.






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






32. Cleave strands of DNA segments at certain sites.






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






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






35. Covalent bonds






36. Carbon - Hydrogen - Oxygen - and Nitrogen






37. Includes all living and nonliving components of the Earth to support living things.






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






39. Controls olfactory lobes (smell)






40. 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.






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






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






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






44. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.






45. Is a phylum that contains sponges.






46. The phyla of sponges.






47. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.






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






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






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