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5 Written questions

5 Matching questions

  1. enzyme
  2. cell division
  3. ribonucleic acid(RNA)
  4. membrane junction
  5. Cell
  1. a Cells are tightly bound, prevent fluids and most molecules from moving between cells. Useful in places such as the stomach and kidneys. types are desmosomes, tight junctions, and gap junctions
  2. b single-stranded nucleic acid that contains the sugar ribose; acts in protein synthesis
  3. c A substance produced by a living organism that acts as a catalyst to bring about a specific chemical reaction
  4. d (biology) the basic structural and functional unit of all organisms
  5. e Process by which a cell divides into two new daughter cells

5 Multiple choice questions

  1. 3rd phase; the chromatids of each chromosome separate at the centromere and move in opposite poles of the spindle.
  2. Energy-requiring process that moves material across a cell membrane against a concentration difference or gradient
  3. A type of intercellular junction in animal cells that prevents the leakage of material between cells, Impermeable, bind cells together into leak-proof sheets
  4. Anchoring 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
  5. nucleic acid found in all living cells: carries the organism's hereditary information.

5 True/False questions

  1. concentration gradienta 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.

          

  2. 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

          

  3. 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.

          

  4. hypertonic 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.

          

  5. protein synthesisActive transport process where a cell engulfs materials with a portion of the cell's plasma membrane and releases the contents inside of the cell to form a vacuole.