Test your basic knowledge |

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 outermost layer of cells of the stem.






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. 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.






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






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






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






7. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).






8. 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.






9. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.






10. Is a coenzyme required in the synthesis of collagen.






11. Niche






12. Is the organelle where cellular reproductive processes occur.






13. Energy transformations that occur as chemicals are broken down or synthesized within the cell.






14. Anabolism






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






16. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.






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






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






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






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






21. Decomposition of living matter for consumption.






22. 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






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






24. 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.






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






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






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






28. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.






29. An enzyme is unaffected by the reactions it catalyzes






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






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






32. Contains optic lobes - controls sight.






33. Is the waxy protective outer coating of leaves.






34. 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).






35. Is a kingdom that includes algae and protozoa.






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






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






38. 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






39. Is the control of protein synthesis. Genetic traits are expressed and specialization of cells occur as a result of the combination of proteins produced by the DNA of a cell.






40. 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.






41. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.






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






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






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






45. 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






46. 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.






47. Controls hunger and thirst






48. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






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






50. Is the sugar that lactase acts upon.