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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 a coenzyme required in the synthesis of collagen.






2. 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.






3. Carbon - Hydrogen - Oxygen - and Nitrogen






4. Is the organelle where cellular reproductive processes occur.






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






6. The sharp boundary of an ecosystem.






7. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.






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






9. Disease causing






10. The phyla of round worms.






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






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






13. The vocal cords are found in the larynx.






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






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






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






17. 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






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






19. The phyla composed of segmented worms.






20. 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






21. Are where the sugars synthesized by photosynthesis travel through to various parts of the plant.






22. Enzymes are usually __________ to certain reactions.






23. 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.






24. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.






25. 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.






26. When the water concentration inside and outside the cell is equal - It is said to be in an...






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






28. Produce antibodies into the bloodstream that find and attach themselves to foreign antigens (toxins - bacteria).






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






30. 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.






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






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






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






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






35. The class composed of birds.






36. Are the organelles where cellular respiration occurs.






37. The individual we recognize as an adult fern.






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






39. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.






40. 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.






41. Plants and animals obtain usable nitrogen






42. 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






43. 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






44. Respiratory organs within insects






45. Is a kingdom that includes algae and protozoa.






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






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






48. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.






49. Niche






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