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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. Proteins that act as biological catalysts






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






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






4. Classification of plant which survives only a single season






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






6. Body of a chloroplast containing grana






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






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






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






10. Smallest unit of most living things






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






12. A cell having only one complete set of chromosomes






13. Projections on cell membrane increase surface area






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






15. The stalk of a stamen that supports the anther






16. Stores - packages and ships proteins






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






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






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






20. Different forms of a gene






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






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






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






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






25. Production of a chemical compound by a living organism






26. The substance acted upon by an enzyme






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






28. Plants that grow year after year






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






30. Change in a DNA sequence that affects genetic information






31. 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)






32. Consists of DNA tightly coiled around proteins






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






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






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






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






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






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






39. Structure within ovary of plant that contains egg cells






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






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






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






43. A substance that retards or stops enzymatic activity






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






45. Vacuole membrane






46. Cell division which produces two identical cells






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






48. Classification of plant whose life cycle survives two seasons






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






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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