Fill in the Blanks — Cell Biology
Instructions: Fill in the blanks without looking at your notes. Check answers below.
- The Cell Theory was proposed by _______ and _______ in _______.
- "Omnis cellula e cellula" was stated by _______.
- Prokaryotic cells have _______ ribosomes composed of _______ and _______ subunits.
- The site of ribosomal RNA synthesis within the nucleus is the _______.
- Mitochondria are bounded by _______ membranes; their inner membrane folds are called _______.
- The light reactions of photosynthesis occur in _______ membranes organized into _______.
- The Fluid Mosaic Model was proposed by _______ and _______ in _______.
- The cis face of the Golgi apparatus receives vesicles from the _______; the trans face releases vesicles for _______.
- Lysosomes are called "_______ bags" because they contain _______ enzymes.
- The middle lamella between plant cells is composed of _______ _______.
- Prokaryotic flagella are made of _______ protein; eukaryotic flagella are made of _______ and show _______ arrangement.
- The three types of plastids are: _______ (green, photosynthesis), _______ (colored, carotenoids), and _______ (colorless, storage).
- In plant cell cytokinesis, the _______ is formed from Golgi vesicles (direction: _______); in animal cells, a _______ forms (direction: _______).
- The semi-autonomous organelles are _______ and _______ because they have their own _______ DNA and _______ ribosomes.
- Cholesterol is found in the plasma membrane of _______ cells, where it regulates membrane _______.
Answers:
- Schleiden and Schwann; 1838–39
- Virchow
- 70S; 50S; 30S
- Nucleolus
- Double; cristae
- Thylakoid; grana
- Singer and Nicolson; 1972
- Endoplasmic reticulum; secretion/transport
- Suicide; hydrolytic
- Calcium pectate
- Flagellin; tubulin; 9+2
- Chloroplasts; chromoplasts; leucoplasts
- Cell plate; centrifugal; cleavage furrow; centripetal
- Mitochondria and chloroplasts; circular; 70S
- Animal; fluidity