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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. Is the organelle where cellular reproductive processes occur.






2. Controls olfactory lobes (smell)






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






4. Is composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.






5. 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.






6. In both living and non-living environments.






7. Subsets below the kingdom level






8. Cleave strands of DNA segments at certain sites.






9. Algae and Protozoa belong to the kingdom...






10. Is found on the stem between nodes.






11. Proposes that those individuals within a population that are most adapted to the environment are also the most likely individuals to produce viable offspring.






12. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.






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






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. Refers to the birthrate of a population.






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






17. All store energy within their chemical bonds.






18. The sharp boundary of an ecosystem.






19. Channels is cell membranes that carry water between cells.






20. Bacteria break ammonia into nitrites - then into nitrates that are usable by plants; volcanic activity produces ammonia and nitrates that enter the soil and can be absorbed by plants; lightning reacts with atmospheric nitrogen to form nitrates that a






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






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






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

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






25. In DNA Thymine pairs with...






26. Ended with the extinction of the dinosaurs.






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






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






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






30. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.






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






32. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).






33. 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.






34. An enzyme is unaffected by the reactions it catalyzes






35. 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.






36. The phyla composed of segmented worms.






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






38. 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.






39. Is the number of organisms that can be supported within a particular ecosystem.






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






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






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






43. 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).






44. Synthesis






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






46. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.






47. 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






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






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






50. 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.