Prokaryotic Cells
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Prokaryotic cells are unicellular organisms that lack a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle. They are divided into two domains; Archaea and Bacteria. What do you know about this particular organism? Let’s find out.
- 1.Which structure is found in all prokaryotic cells?
- A.
Flagella
- B.
Ribosomes
- C.
Mitochondria
- D.
Vacuoles
- 2.Which characteristic applies to all prokaryotic cells?
- A.
They have nucleus
- B.
They have mitochondria
- C.
They have chlorophyll
- D.
They have ribosomes
- 3.Which of these cell features is absent in bacterial cells?
- A.
Plasma membrane
- B.
DNA
- C.
Nucleiod
- D.
Nucleus
- 4.Which prokaryotic cell is correctly matched with its morphology (shape)?
- A.
Spirillum, is spherical
- B.
Bacillus, is spherical
- C.
Coccus, has one or more twists like a spiral
- D.
Bacillus, is shaped like a small rod or staff
- 5.The cell wall of bacteria is _____.
- A.
Made of cellulose
- B.
Made of peptidoglycan
- C.
Inside the plasma membrane
- D.
Present in all bacterial species
- 6.Gram staining _____.
- A.
turns Gram-positive species pink
- B.
Turns Gram-negative species purple
- C.
Turns Gram-positive species purple
- D.
Requires three steps: exposure of the bacteria to purple dye, then iodine, and finally an alcohol wash
- 7.Photoheterotrophic prokaryotes _____.
- A.
Get energy from the sun and use organic compounds as their carbon source
- B.
Get nutrients from a living host
- C.
Get carbon from carbon dioxide, and energy from oxidizing compounds such as iron or sulfur
- D.
Are self-feeders who make their own food by photosynthesis
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