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. Green pigment contained in the grana






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






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






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






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






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






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






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






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






10. Different forms of a gene






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






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






13. Bead-like structure in chromatin - composed of a short length of DNA wrapped around a core of histone proteins






14. Stores - packages and ships proteins






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






16. Change in a DNA sequence that affects genetic information






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






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






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






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






21. Modifications of pre-mRNA that make it into mature mRNA - so that it is ready for protein synthesis






22. Cell division which produces two identical cells






23. Vacuole membrane






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






25. Body of a chloroplast containing grana






26. The complete genetic material contained in an individual






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






28. Classification of plant whose life cycle survives two seasons






29. 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)






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






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






32. Division of the cytoplasm during cell division - new cell is formed






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






34. Stalk that supports the flower






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






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






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






38. Three-nucleotide sequence on messenger RNA that codes for a single amino acid






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






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






41. Proteins that act as biological catalysts






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






43. 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






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






45. Used to examine tiny cell organelles






46. Consists of DNA tightly coiled around proteins






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






48. The part of the stamen that contains pollen






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






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests