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5 Written questions

5 Matching questions

  1. telophase
  2. osmosis
  3. enzyme
  4. protein synthesis
  5. concentration gradient
  1. a After the chromosome seperates, the cell seals off, Final Phase of Mitosis., A cleavage furrow forms during this phase, two nuclei are formed
  2. b A substance produced by a living organism that acts as a catalyst to bring about a specific chemical reaction
  3. c Diffusion of water through a selectively permeable membrane
  4. d Forming proteins based on information in DNA and carried out by RNA
  5. e a gradient in concentration of a solute that molecules move down and the greater the difference in concentration between the two areas, the faster diffusion occurs. It is An increase or decrease in the density of a chemical substance in an area., A difference in concentration between two areas.

5 Multiple choice questions

  1. nucleic acid found in all living cells: carries the organism's hereditary information.
  2. A tiny cell structure that carries out a specific function within the cell
  3. A sequence of three bases of a tRNA molecule that pairs with the complementary three-nucleotide codon of an mRNA molecule during protein synthesis.
  4. (biology) the basic structural and functional unit of all organisms
  5. Second Stage of Cell division: Centromeres of duplicated chromosomes are aligned at plate. chromosomes become attached to spindle fibers

5 True/False questions

  1. isotonic solutionA solution in which the concentration of solutes is less than that of the cell that resides in the solution, causes a cell to swell because of osmosis.


  2. membrane junctionCommunicating Junctions; channels that allow small molecules to flow through protein-lined pores between cells. common in the heart and embryonic cells.


  3. transcription(genetics) the organic process whereby the DNA sequence in a gene is copied into mRNA, DNA acts as a template for the synthesis of RNA


  4. desmosomeA threadlike, gene-carrying structure found in the nucleus. consists of one very long DNA molecule and associated proteins.


  5. chromosomeAnchoring junctions that prevents cells subjected to mechanical stress from being pulled apart; two adjacent cells are attached. formed from protein plaques in the the cell membranes linked by protein filaments


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