Bacterial Structure and Function Quiz

What type of organisms are described as unicellular and prokaryotic?

• Algae

• Viruses

• Bacteria

• Fungi

What is the shape of bacteria that is referred to as 'coccus'?

• Round

• Square

• Spiral

• Rod

What is the function of the capsule in bacteria?

• Energy production

• Protein synthesis

• DNA replication

• Protection and attachment

Which bacteria is known to cause tooth decay?

• Escherichia coli

• Bacillus subtilis

• Staphylococcus aureus

• Streptococcus mutans

What structure helps bacteria to move?

• Cell wall

• Capsule

• Ribosomes

• Flagella

Which type of bacteria has a thick layer of peptidoglycan?

• Mycoplasma

• Gram-negative

• Gram-positive

• Acid-fast

What is the primary component of bacterial cell walls?

• Peptidoglycan

• Lignin

• Cellulose

• Chitin

What color do Gram-positive bacteria appear after staining?

• Yellow

• Purple

• Green

• Red

What is the role of flagella in bacteria?

• Photosynthesis

• Nutrient absorption

• Cell division

• Movement

Which of the following is NOT a shape of bacteria?

• Coccus

• Spirillus

• Cuboid

• Bacillus