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. The process of transfering genetic material from one cell to another






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






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






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






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






6. Classification of plant which survives only a single season






7. Vacuole membrane






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






9. Smallest unit of most living things






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






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






12. Body of a chloroplast containing grana






13. A period during which the cell grows - G1 - copies its DNA - S - and synthesizes proteins - G2






14. Matching Chromosomes that are similar but not identical






15. Plants that grow year after year






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






17. Composed of a bilayer of lipids embedded with globular proteins






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






19. Structure within ovary of plant that contains egg cells






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






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






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






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






24. The second phase of mitosis - during which the chromosomes line up across the center of the cell






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






26. Green pigment contained in the grana






27. The stalk of a stamen that supports the anther






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






29. Double-stranded chains of proteins which give structure to the cell






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






31. Used to examine tiny cell organelles






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






33. Uses electrons from the Krebs cycle to change ADP to ATP (cytochromes on surface of cristae of mitochondria - contain protein and heme (iron containing) groups - electrons pass along them and ATP is produced)






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






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






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






37. Proteins that act as biological catalysts






38. A cell having only one complete set of chromosomes






39. Classification of plant whose life cycle survives two seasons






40. Stalk that supports the flower






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






42. 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






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






44. Consists of DNA tightly coiled around proteins






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






46. Small - dense region within most nuclei in which the assembly of RNA proteins begins






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






48. A substance that retards or stops enzymatic activity






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






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