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






2. Is a kingdom that includes algae and protozoa.






3. 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.






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






5. Carbon - Hydrogen - Oxygen - and Nitrogen






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






7. Is found on the stem between nodes.






8. The phyla of round worms.






9. Controls olfactory lobes (smell)






10. The destruction of gametes - (sex cells such as sperm and eggs).






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






12. (of some plants or fungi) feeding on dead or decaying organic matter






13. Covers and protects the leaf.






14. The cells of a developing embryo (at the gastrula stage) differentiate into layers - that will later develop into different tissues and organs - including the mesoderm - ectoderm - and endoderm.






15. 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






16. Cleave strands of DNA segments at certain sites.






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






18. Refers to the birthrate of a population.






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






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






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






22. 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.






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






24. 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






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






26. The sharp boundary of an ecosystem.






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






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






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






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






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






32. 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






33. 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.






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






35. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






36. 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).






37. States that where random mating is occurring within a population that is in equilibrium with its environment - the gene frequencies and genotype ratios will remain constant from generation to generation. It is a mathematical formula that shows why re






38. Respiratory organs within insects






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






40. Ended with the extinction of the dinosaurs.






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






42. High temperatures






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






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






45. 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.






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






47. 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.






48. Is the outermost layer of cells of the stem.






49. Covalent bonds






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