Test your basic knowledge |

CLEP Natural Science

Subjects : clep, science
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. A long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix






2. Reducing the ploidy level of nucleus from diploid to haploid in meiotic cell division






3. Plants that grow year after year






4. The process whereby genetic information coded in messenger RNA directs the formation of a specific protein at a ribosome in the cytoplasm through tRNA






5. Packaged protein or other substance produced by golgi apparatus/endoplasmic reticulum






6. Stalk that supports the flower






7. In photosynthesis - this is the splitting of water by light






8. Stage of cellular respiration that finishes the breakdown of pyruvic acid molecules to carbon dioxide - releasing energy






9. The organ that bears the ovules of a flower - base of the pistil






10. The stage of meiosis or mitosis when chromosomes move toward opposite ends of the nuclear spindle






11. Hollow tubes of protein about 25 nanometers in diameter - support the cell and moves organelles within the cell






12. Smallest unit of most living things






13. Proteins that act as biological catalysts






14. Matching Chromosomes that are similar but not identical






15. Part of stem where growth occurs - contains meristem tissue that is capable of quick growth






16. Reproductive cells - have only half the number of chromosomes






17. Tubes - One of two tiny structures located in the cytoplasm of animal cells near the nuclear envelope; play a role in cell division.






18. Site of protein synthesis. Free ribosomes - float unattached; attached ribosomes - attached to the ER






19. The regular sequence of growth and division that cells undergo






20. The female part of a flower composed of ovary and style and stigma and ovules






21. Small structures in the cytoplasm of a cell that do special jobs






22. Cell division that produces reproductive cells in sexually reproducing organisms






23. The final stage of mitosis or meiosis - during which a nuclear membrane forms around each set of new chromosomes






24. The part of the stamen that contains pollen






25. Has a nucleus - has organelles or other cell parts






26. (adenosine triphosphate) main energy source that cells use for most of their work






27. Anaerobic cellular respiration in which pyruvic acid is broken down into end products such as lactic acid






28. Classification of plant which forms seeds inside a protective chamber called an ovary - inside a flower






29. Numerous folds in the inner membrane of a mitochondrion - the site of cellular respiration






30. The male reproductive organ of a flower consisting of anther - filament - and pollen






31. Projections on cell membrane increase surface area






32. Cells that lack a membrane-bound nucleus and membrane-bound organelles






33. Consists of DNA tightly coiled around proteins






34. Powerhouse of the cell - organelle that is the site of ATP (energy) production






35. The organic process whereby the DNA sequence in a gene is copied into mRNA






36. Production of a chemical compound by a living organism






37. A cell having two sets of chromosomes or twice the haploid number






38. Change in a DNA sequence that affects genetic information






39. Membrane-bound organelle that stores water and soluble substances






40. Process of building up complex materials (proteins) from simple materials






41. Classification of plant whose life cycle survives two seasons






42. Used to examine tiny cell organelles






43. Pores which allows materials to move in and out of the cell nucleus






44. The stalk of a stamen that supports the anther






45. A substance that must join with the enzyme to enable it to fit the substrate






46. Cell organelle filled with enyzmes need to break down certain materials in the cells






47. An internal membrane system in which components of cell membrane and some proteins are constructed. rough - instrumental in protein synthesis; smooth - processes lipids fats and steroids






48. Photosynthetic reaction in which carbon dioxide is attached to an organic compound (glucose - polysaccharides)






49. Stores - packages and ships proteins






50. Body of a chloroplast containing grana