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task 3: crossword across 3. a more scientific term for bacterium. 7. pr…

Question

task 3: crossword
across

  1. a more scientific term for bacterium.
  2. prokaryotic dna is ___ instead of linear.
  3. the outermost layer of a bacterium.
  4. gram ___ bacteria stain red instead of purple with gram staining.
  5. a spiral - shaped bacterium that is short and rigid.
  6. a spiral - shaped bacterium that is long, slender and flexible.

down

  1. a spherical - shaped bacterium.
  2. prokaryotic cell division.
  3. the layer found between the plasma membrane and capsule.
  4. a curved or apostrophe - shaped bacterium.
  5. the plural for flagellum.
  6. the dna of a prokaryote.
  7. a small circular piece of non - chromosomal dna.
  8. the plural of pilus.

Explanation:

Brief Explanations
  • ACROSS 3: Prokaryote is a more scientific term for bacterium as bacteria are single - celled prokaryotic organisms.
  • ACROSS 7: Prokaryotic DNA is circular. This is a key structural difference from eukaryotic linear DNA.
  • ACROSS 8: The outermost layer of a bacterium is the capsule. It provides protection.
  • ACROSS 11: Gram - negative bacteria stain red. This is due to differences in their cell wall structure compared to Gram - positive bacteria.
  • ACROSS 13: A short and rigid spiral - shaped bacterium is a spirillum.
  • ACROSS 14: A long, slender and flexible spiral - shaped bacterium is a spirochete.
  • DOWN 1: A spherical - shaped bacterium is a coccus (plural: cocci).
  • DOWN 2: Prokaryotic cell division is binary fission.
  • DOWN 4: The layer between the plasma membrane and capsule is the cell wall (in many bacteria, the cell wall is present and is a distinct layer).
  • DOWN 5: A curved or apostrophe - shaped bacterium is a vibrio.
  • DOWN 6: The plural for flagellum is flagella.
  • DOWN 9: The DNA of a prokaryote is called the nucleoid (the main genetic material region).
  • DOWN 10: A small circular piece of non - chromosomal DNA is a plasmid.
  • DOWN 12: The plural of pilus is pili.

Answer:

ACROSS 3: Prokaryote; ACROSS 7: Circular; ACROSS 8: Capsule; ACROSS 11: Negative; ACROSS 13: Spirillum; ACROSS 14: Spirochete; DOWN 1: Coccus; DOWN 2: Binary fission; DOWN 4: Cell wall; DOWN 5: Vibrio; DOWN 6: Flagella; DOWN 9: Nucleoid; DOWN 10: Plasmid; DOWN 12: Pili.