Prokaryotes Quiz ( Formative)

What is a common trait of all prokaryotes according to the text?

• They all contain nuclei.

• They are multicellular organisms.

• They are typically about 2 um long.

• They are visible without a microscope.

What are prokaryotes commonly known as?

• Eukaryotes

• Cyanobacteria

• Archaeabacteria

• Bacteria

How many prokaryotes lying end to end would it take to stretch the length of one inch?

• About 1,300 prokaryotes

• About 13,000 prokaryotes

• About 130,000 prokaryotes

• About 1,300,000 prokaryotes

What is the size of a typical prokaryotic cell?

• 2 cm long

• 2 mm long

• 2 um long

• 2 nm long

What were some prokaryotes previously called?

• Eubacteria

• Blue-green algae

• Archaeabacteria

• Eukaryotes

Where are bacteria present in large numbers according to the text?

• Only in raw wastewater

• In raw wastewater, biological treatment plants, plant effluent, natural waters, and throughout the environment

• Exclusively in plant effluent and natural waters

• Only inside living organisms such as humans

What type of organisms are bacteria classified as?

• Autotrophs

• Heterotrophs

• Phototrophs

• Chemotrophs

Why are bacteria important to the wastewater operator?

• Because they can cause disease

• Because they are present in activated sludge

• Because they digest a large amount of waste in wastewater

• Because they make their own food

What can some bacteria do when they live inside organisms such as humans?

• They help in the digestion of food

• They can cause disease

• They form part of the slime on trickling filters

• They become autotrophs

What is the fundamental unit of all life?

• Organism

• Cell

• DNA

• Cytoplasm