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






2. The vocal cords are found in the larynx.






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






4. 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.






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






6. Is the organelle where cellular reproductive processes occur.






7. Is the outermost of the three main layers of an embryo.






8. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.






9. 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






10. 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).






11. 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.






12. Is the waxy protective outer coating of leaves.






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

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14. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.






15. The transfer of electrons.






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






17. Enzymes are usually __________ to certain reactions.






18. 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.






19. In both living and non-living environments.






20. 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.






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






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






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






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






25. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).






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






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






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






29. 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.






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






31. A hydrogen bond involves the ________________ and can be easily broken.






32. Some energy is lost as heat and becomes unusable.






33. A suffix meaning 'to break apart.' O || ||






34. Super-class of vertebrae including organisms with jaws.






35. 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.






36. Is disorganized - unravelled - DNA with histones attached.






37. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.






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






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






40. Contains multicellular photosynthetic eukaryotic organisms including gymnosperms and angiosperms.






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






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






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






44. In order to become an established part of an island ecosystem there must be a populations large enough to ensure _________ - a food source - a suitable habitat - and a source of moisture.






45. Biotic (living) factors such as population and food source - and abiotic (non-living) factors such as weather - temperature - soil features - sunlight).






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






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






48. Is a phylum that contains jellyfish - hydra - etc.






49. The phyla composed of segmented worms.






50. Refers to the birthrate of a population.