Microbiology - Prokaryotes and Eukaryotes

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A Dummy's quiz to the basics of everyone's favourite lunch topics - Prokaryotism and Eukaryotism.

1

Prokaryotic organisms have the following structures:
- Ribosomes, cell membrane, cell wall, surface layer, cilia
- Genome, ribosomes, cell wall, surface layer, cilia
- Genome, ribosomes, cell membrane, cell wall, surface layer
2

Prokaryotic organisms gain energy from:
- Photosynthesis
- Oxidation of inorganic compounds
- Respiration: breaking down organic compounds (amino acids, sugars)
- All of the above
3

Transduction is:
- The transfer of DNA by phage, requiring the donor and recipient to share cell surface receptors for phage binding, usually limited to closely related bacteria; length of DNA transferred limited by size of phage head
- The transfer of DNA mediated by conjugal plasmids or conjugal transposons; requires cell to cell contact but can occur between distantly related bacteria or even bacteria and eukaryotic cells; can transfer long fragments of DNA
- The uptake of naked DNA, most common in bacteria, only short DNA fragments are usually exchanged
4

A "cocci" bacteria is shaped like:
- A rod
- A spiral
- A sphere
- Mickey mouse
5

Gram stain is performed on the _____ of the cell:
- Cell membrane
- Genome
- Cell wall
- Ribosomes
6

Gram negative bacteria is coloured ___ in a gram stain test:
- White
- Green
- Red
- Blue
7

Which of the following is not an example of gram negative bacteria:
- Clostridium
- Escherichia coli
- Salmonella
- Shigella
8

Which of the following is false about prokaryotes:
- They consist of bacteria and archaea
- Most are unicellular
- They have no cell nucleus
- Cell division occurs by mitosis and meiosis
9

Which of the following is caused by Clostridium perfringens (hint: it uses a "distant effect")
- Enzymes produced break down host cells and intracellular matrices
- Produces enzymes that coagulate fribrinogen, leading to abscess formation
- Produces pus (pyogenic bacteria)
- Cytotoxins destroy host cells
10

Which of the following is not caused by an exotoxin:
- Enzymes break down host cells and intracellular matrices (Streptococcus)
- Cytotoxins destroy host cells (Clostridium perfingens)
- Neurotoxins interfere with neural transmission (Clostridium tetani and Clostridium botulinum)
- Enterotoxins affect the cells lining the gastrointestinal tract (Staphylococcus aureus, Escherichia coli.)
11

Eukaryotic organelles contain:
- Mitochondria
- Cytoskeleton
- Mesosome
- Vacuoles
- Centrioles
12

Eukaryotic cells do not have:
- A double stranded DNA, enclosed within a nuclear membrane
- Nucleoli for production and maturation of ribosomes
- Binary fission reproduction
- Cell division by mitosis, reproduction by "meiosis"
13

Fungi are not:
- Non-motile
- Anaerobes
- Multicellular (except yeast)
- able to reproduce by forming spores

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Microbiology - Prokaryotes and Eukaryotes

Prokaryotic organisms have the following structures:

Prokaryotic organisms gain energy from:

Transduction is:

A "cocci" bacteria is shaped like:

Gram stain is performed on the _____ of the cell:

Gram negative bacteria is coloured ___ in a gram stain test:

Which of the following is not an example of gram negative bacteria:

Which of the following is false about prokaryotes:

Which of the following is caused by Clostridium perfringens (hint: it uses a "distant effect")

Which of the following is not caused by an exotoxin:

Eukaryotic organelles contain:

Eukaryotic cells do not have:

Fungi are not:

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