Microbiology Connect Quiz #4

Check all the general characteristics of eukaryotic flagella and cilia. 1) 9+2 arrangement of doublet-microtubules 2) about 0.2 micrometers in diameter 3) contains proteins called dynien 4) powered by a unique energy molecule, CTP

1, 2, 3, 4

When comparing bacteria to eukaryotes, bacteria are _________. 1) smaller 2) larger 3) compartmentalized (contains organelles) 4) not compartmentalized (lacks organelles)

1, 4

Check all the characteristics that apply to the cell envelopes found in eukaryotic cells. 1) peptidoglycan polymers 2) sphingolipids 3) sterols 4) outer cell wall

2, 3

Check all the typical characteristics commonly found associated with eukaryotic cells that are NOT found in bacterial cells. 1) presence of a cell membrane 2) presence of mitochondria 3) presence of a cell wall 4) presence of peptidoglycan 5) presence of a nucleus

2, 3, 4, 5

In which of the following would you expect to find protein synthesis? A) rough ER B) golgi C) nucleus D) smooth ER

A) rough ER

Which of the following best describes eukaryotic cell cytoplasm? A) the compartment within the cell membrane that contains various organelles and metabolic enzymes B) the compartment between the cell membrane and the cell wall and is the location of the electron transport system C) the compartment within the mitochondria, nucleus, ER, and golgi (location for metabolism) D) the liquid fraction of the cell

A) the compartment within the cell membrane that contains various organelles and metabolic enzymes

Which best describes the motility of eukaryotic organisms using flagella? A) the flagella whip back and forth, pushing the cell along B) the flagella spin like a propeller, pulling the cell along C) the flagella grabs onto surfaces and pulls the cell along D) the flagella spin like a propeller, pushing the cell along

A) the flagella whip back and forth, pushing the cell along

Which of the following cytoskeletal elements principally compose the eukaryotic flagella? A) flagellin B) microtubules C) intermediate filaments D) actin filaments

B) micrtotubules

Classify bacterial and eukaryotic cells according to their aspects of cell envelope structure and function.

Bacterial cells 1) composition -> composed of phospholipids and typically lack sterols but may have hopanoids 2) organization -> organized typically as a lipid bilayer with proteins projecting outward so they may engage the environment 3) functions to be the location of environmental engagement and has little to do with energy production for the cell Eukaryotic cells 1) composition -> composed of a high proportion of sphingolipids and sterols and typically lack cell walls 2) organized typically in layers of cell wall material resting on top of a cell membrane or between two cell membranes 3) functions to be the location of environmental engagement and controls much of energy production for the cell

Classify the flagella descriptions as either bacterial or eukaryotic organisms.

Bacterial flagella 1) composition -> composed of mostly a protein called flagellin 2) arrangement -> arranged in different distinctive domains such as basal body, hook and filament 3) motion -> moves by the flagella spinning around and around Eukaryotic flagella 1) composition -> composed mostly of proteins called microtubulin and dynien 2) arranged mostly as repeating protein units 3) moves by the flagella whipping back and forth

Which of the following describes an organism that has plasma membranes composed of glycerol diethers and diglycerol? A) bacteria B) eukarya C) archaea

C) archaea

What is a common location for both prokaryotic ribosomes and eukaryotic ribosomes? A) cytoplasm & rough ER B) nucleus C) cytoplasm D) ER

C) cytoplasm

Match the ribosomes with the correct organism type.

Eukaryotic small subunit -> 40s Prokaryotic small subunit -> 30s Prokaryotic large subunit -> 50s Eukaryotic large subunit -> 60s Eukaryotic complete ribosome -> 80s Prokaryotic complete ribosome -> 70s

Comparison of Archaea, Bacteria and Eukaryotic Cells

Flagella -> Y: archaea, bacteria, eukaryotic Mitochondria -> Y: eukaryotic N: archaea, bacteria Chromosomes -> Y: archaea, bacteria, eukaryotic Peptidoglycan cell wall -> Y: bacteria N: archaea, eukaryotic Lysosomes -> Y: bacteria, eukaryotic N: archaea True membrane-bound nucleus -> Y: eukaryotic N: bacteria, archaea