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. Classication of plant which produce seeds which are 'naked' (in cones)






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






3. A non-protein - but organic - molecule (such as vitamin) that is covalently bound to an enzyme as part of the active site






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






5. Matching Chromosomes that are similar but not identical






6. Production of a chemical compound by a living organism






7. A substance that retards or stops enzymatic activity






8. Particle made up of DNA - RNA - protein - and in some cases lipids that can only replicate only by infecting living cells






9. Breakdown of more complex substances into simpler ones with release of energy






10. Process by which a cell releases large amounts of material






11. Smallest unit of most living things






12. Green pigment contained in the grana






13. Modification of a cell by the incorporation of exogenous DNA






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






15. Have tissues made of cells that transport water and nutrients throughout the plant






16. A cell having only one complete set of chromosomes






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






18. A long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix






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






20. The substance acted upon by an enzyme






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






22. First step in releasing the energy of glucose - in which a molecule of glucose is broken into two molecules of pyruvic acid






23. Vacuole membrane






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






25. Consists of DNA tightly coiled around proteins






26. Passive transport of materials across a plasma membrane by transport proteins embedded in the plasma membrane






27. The part of the stamen that contains pollen






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






29. Different forms of a gene






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






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






32. Disk-like plates which are the site of photosynthesis in chloroplasts






33. The complete genetic material contained in an individual






34. Sequence of DNA that codes for a protein and thus determines a trait






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






36. Strong layer around the cell membrane in plants - algae - and some bacteria made of cellulose and lignin






37. The stalk of a stamen that supports the anther






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






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






40. Sticky portion at the top of the style which traps pollen






41. Theory which suggests mitochondria and chloroplasts were once prokaryotic organisms in a symbiotic relationship with eykorytic cells






42. The interchange of sections between pairing homologous chromosomes during the prophase of meiosis






43. Cell division which produces two identical cells






44. The first stage of mitosis - forming spindle fibres attached to the centromere






45. The part of an enzyme where the chemical reaction occurs






46. Living thing






47. Set of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes






48. Classification of plant whose life cycle survives two seasons






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






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