Part of CB-01 — Cell Structure: Prokaryotic & Eukaryotic Cells

Fill in the Blank Practice

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Fill in the Blanks — Cell Biology

Instructions: Fill in the blanks without looking at your notes. Check answers below.

  1. The Cell Theory was proposed by _______ and _______ in _______.
  2. "Omnis cellula e cellula" was stated by _______.
  3. Prokaryotic cells have _______ ribosomes composed of _______ and _______ subunits.
  4. The site of ribosomal RNA synthesis within the nucleus is the _______.
  5. Mitochondria are bounded by _______ membranes; their inner membrane folds are called _______.
  6. The light reactions of photosynthesis occur in _______ membranes organized into _______.
  7. The Fluid Mosaic Model was proposed by _______ and _______ in _______.
  8. The cis face of the Golgi apparatus receives vesicles from the _______; the trans face releases vesicles for _______.
  9. Lysosomes are called "_______ bags" because they contain _______ enzymes.
  10. The middle lamella between plant cells is composed of _______ _______.
  11. Prokaryotic flagella are made of _______ protein; eukaryotic flagella are made of _______ and show _______ arrangement.
  12. The three types of plastids are: _______ (green, photosynthesis), _______ (colored, carotenoids), and _______ (colorless, storage).
  13. In plant cell cytokinesis, the _______ is formed from Golgi vesicles (direction: _______); in animal cells, a _______ forms (direction: _______).
  14. The semi-autonomous organelles are _______ and _______ because they have their own _______ DNA and _______ ribosomes.
  15. Cholesterol is found in the plasma membrane of _______ cells, where it regulates membrane _______.

Answers:

  1. Schleiden and Schwann; 1838–39
  2. Virchow
  3. 70S; 50S; 30S
  4. Nucleolus
  5. Double; cristae
  6. Thylakoid; grana
  7. Singer and Nicolson; 1972
  8. Endoplasmic reticulum; secretion/transport
  9. Suicide; hydrolytic
  10. Calcium pectate
  11. Flagellin; tubulin; 9+2
  12. Chloroplasts; chromoplasts; leucoplasts
  13. Cell plate; centrifugal; cleavage furrow; centripetal
  14. Mitochondria and chloroplasts; circular; 70S
  15. Animal; fluidity

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