MI 1.2

If a bacterium has a thick cell wall and stains purple it is

• gram positive

• gram negative

• gram neutral

• graham cracker

Tags

NGSS.MS-LS4-2

The pilus serves as a way to transfer genes through

• conjugation

• transformation

• translation

• replication

Tags

NGSS.MS-LS1-2

This image depicts a bacteria acquiring genetic material from a dead bacteria cell or taking in "naked DNA." What is taking place here?

• conjugation
• transformation
• transduction
• genetic acquisition

Tags

NGSS.HS-LS3-2

This structure serve to help the cell move

• capsule

• flagella

• cilia

• endotoxin

Which part of the protective layers of a bacterium is the innermost protective layer?

• capsule

• cell wall

• cell membrane

• endotoxin

Which statement is false?

• Gram positive bacteria stain purple and gram negative bacteria stain pink.

• Gram positive bacteria have a thicker peptidoglycan layer than gram negative bacteria.

• Both gram positive and gram negative bacteria can pass genes through conjugation.

• Gram positive bacteria have plasmids and gram negative bacteria do not.

What is transformation?

• The use of viruses to transform or genetically

  
  

  engineer cells.

• The measure of how well cells are transformed in a new phenotype.

• The insertion of a foreign plasmid into a bacterial cell which results in new acquired traits.

• Genetic engineering or transformation of mammalian cells.

Strong outer layer that protects the bacterial cell from infection by viruses and attack from immune cells.

• Pilli

• Cell wall

• Capsule

• Flagella

Layer outside the cell membrane that gives the bacterial cell a solid shape.

• Cytoplasm

• Cell wall

• Plasma membrane

• Pilli

Whip-like tail that allows bacteria to move

• Pillus

• Flagella

• Cytoplasm

• Cell wall