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






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






3. The complete genetic material contained in an individual






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






5. The stalk of a stamen that supports the anther






6. 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)






7. Proteins that act as biological catalysts






8. Plants that grow year after year






9. Change in a DNA sequence that affects genetic information






10. Structure within ovary of plant that contains egg cells






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






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






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






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






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






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






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






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






19. Used to examine tiny cell organelles






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






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






22. Living thing






23. Body of a chloroplast containing grana






24. 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






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






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






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






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






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






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






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






32. Stalk that supports the flower






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






34. The part of the stamen that contains pollen






35. Projections on cell membrane increase surface area






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






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






38. Consists of DNA tightly coiled around proteins






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






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






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






42. A substance that retards or stops enzymatic activity






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






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






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






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






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






48. Different forms of a gene






49. Cell division which produces two identical cells






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







Sorry!:) No result found.

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