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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. 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.






2. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.






3. Allows for the genetic code to be preserved in future generations of cells.






4. Controls hunger and thirst






5. Covalent bonds






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






7. 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.






8. The systematic search for individuals with a specific genotype in a delineated population.






9. Inorganic phosphate






10. Super-class of vertebrae including organisms with no jaws.






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






12. Engages in both passive and active transport.






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






14. Is the waxy protective outer coating of leaves.






15. Carbon - Hydrogen - Oxygen - and Nitrogen






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






17. 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.






18. Are the organelles where cellular respiration occurs.






19. 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.






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






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






22. The individual we recognize as an adult fern.






23. Occurs when an individual from an adjacent population of the same species immigrates and breeds with a member of a previously locally isolated group - resulting in a change in the gene pool.






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






25. Controls balance and muscle coordination






26. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.






27. 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.






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






29. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.






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






31. The phylum of insects (bees).






32. Synthesis






33. Mitochondria - they constitute the center of cellular respiration.

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






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






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






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






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






39. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting






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






41. The sharp boundary of an ecosystem.






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






43. Are formed when the plasma membrane of a cell encloses a molecule outside the membrane - then releases a membrane bound sack containing the desired molecule into the cytoplasm. This process allows the cell to absorb molecules that are larger in size






44. All store energy within their chemical bonds.






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






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






47. 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.






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






49. An enzyme is unaffected by the reactions it catalyzes






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