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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. Must be present for photosynthesis to occur - it is not used up in the process.






2. Cleave strands of DNA segments at certain sites.






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






4. Are surrounded by capillaries that allow for carbon dioxide to diffuse into the lungs and oxygen to diffuse out.






5. In both living and non-living environments.






6. Most fossils of Hominids are from continents other than...






7. 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






8. A type of innate behavior (instinct.) The FAP is a preprogrammed response to a particular stimulus (known as a releaser stimulus). FAP's include courtship behaviors and feeding of young. These are not learned behaviors - they are automatically perfor






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






10. Plants and animals obtain usable nitrogen






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






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






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






14. The phylum of insects (bees).






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






16. 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






17. 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.






18. Decomposition of living matter for consumption.






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






20. 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.






21. High temperatures






22. Respiratory organs within insects






23. Is a social behavior of an organism that is beneficial to the group at the individual's expense.






24. Is a packet of digestive enzymes that destroy cellular wastes.






25. 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.






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






27. Engages in both passive and active transport.






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






29. Attaches to an enzyme and blocks the enzyme reaction rather than enhancing it - like a prosthetic group would.






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






31. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.






32. In DNA Thymine pairs with...






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






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






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. Some energy is lost as heat and becomes unusable.






37. 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






38. Is a molecule that stores information for protein synthesis and genetic coding.






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






40. 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






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






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






43. 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.






44. Small - green - heart-shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil






45. The individual we recognize as an adult fern.






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






47. Subsets below the kingdom level






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






49. Is a substance that changes the speed of a reaction without being affected itself.






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