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






2. 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






3. 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.






4. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






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






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






7. The transfer of electrons.






8. An orienting response to light.






9. 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






10. Plants and animals obtain usable nitrogen






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






12. 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.






13. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






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






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






16. The phylum of insects (bees).






17. Is secreted by the adrenal cortex to promote sodium reabsorption in the kidney.






18. Are cells involved in immunity and are produced in bone marrow as stem cells.






19. 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.






20. Decomposition of living matter for consumption.






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






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






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






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






25. Disease causing






26. 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.






27. Refers to the birthrate of a population.






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






29. 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.






30. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.






31. 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).






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






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






34. Covers and protects the leaf.






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






36. Carbon - Hydrogen - Oxygen - and Nitrogen






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






38. Anabolism






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






40. 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.






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






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






43. Controls balance and muscle coordination






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






45. 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.






46. The number of organisms in a given community - can be above or below the carrying capacity.






47. Is found in the root cap and is responsible for quick growth in the roots.






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






49. 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.






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