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






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






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






4. A substance that retards or stops enzymatic activity






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






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






7. Consists of DNA tightly coiled around proteins






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






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






10. The stalk of a stamen that supports the anther






11. Classification of plant whose life cycle survives two seasons






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






13. Living thing






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






15. Structure within ovary of plant that contains egg cells






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






17. Stores - packages and ships proteins






18. A cell having two sets of chromosomes or twice the haploid number






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






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






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






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






23. Stage of cellular respiration that finishes the breakdown of pyruvic acid molecules to carbon dioxide - releasing energy






24. Green pigment contained in the grana






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






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






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






28. Matching Chromosomes that are similar but not identical






29. The substance acted upon by an enzyme






30. Vacuole membrane






31. Proteins that act as biological catalysts






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






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






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






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






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






37. Transport of a substance across a cell membrane against the concentration gradient






38. Body of a chloroplast containing grana






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






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






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






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






43. 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)






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






45. Production of a chemical compound by a living organism






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






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






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






49. Different forms of a gene






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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