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5 Written questions

5 Matching questions

  1. diffusion
  2. transcription
  3. filtration
  4. endocytosis
  5. ribonucleic acid(RNA)
  1. a single-stranded nucleic acid that contains the sugar ribose; acts in protein synthesis
  2. b A process that separates materials through a membrane based on the size of their particles.
  3. c Movement of molecules from an area of higher concentration to an area of lower concentration.
  4. d (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
  5. e Active 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.

5 Multiple choice questions

  1. (biology) the basic structural and functional unit of all organisms
  2. A sequence of three nucleotide bases on mRNA that refers to a specific amino acid. (if DNA triplets are AAT-CGT-TCG then related _____ on mRNA would be UUA-GCA-AGC
  3. biological unit of hereditary information located in chromatin consisting of a specific nucleotide sequence in DNA (or RNA, in some viruses). that transmits hereditary information.
  4. After the chromosome seperates, the cell seals off, Final Phase of Mitosis., A cleavage furrow forms during this phase, two nuclei are formed
  5. 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 True/False questions

  1. hypertonic solutionA solution in which the concentration of solutes is greater than that of the cell that resides in the solution.,causes a cell to shrink 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. passive transportRequires NO energy, Movement of molecules from high to low concentration, Moves with the concentration gradient.example is ATP. and diffusion is driven by kinetic energy


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


  5. Cell Theory(biology) the basic structural and functional unit of all organisms


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