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 complete genetic material contained in an individual






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






3. Smallest unit of most living things






4. Structure within ovary of plant that contains egg cells






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






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






7. Vacuole membrane






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






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






10. Green pigment contained in the grana






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






12. Plants that grow year after year






13. The stalk of a stamen that supports the anther






14. Cell division which produces two identical cells






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






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






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






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






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






20. Stores - packages and ships proteins






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






22. Provides structural support to a cell composed of microtubules - microfilaments - centrioles






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






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






25. Formed when cell membrane surrounds a molecule outside the cell and ingests it






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






27. The substance acted upon by an enzyme






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






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






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






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






32. Two identical chromosomes that split and contain the same genetic material






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






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






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






36. A substance that retards or stops enzymatic activity






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






38. Matching Chromosomes that are similar but not identical






39. Living thing






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






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






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






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






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






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






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






47. The part of the stamen that contains pollen






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






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






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