Bacterial Growth

Is the pictured graph growth, decay, or linear or none?  

• Growth
• Decay
• Linear
• None

Bacteria reproduce this way.

• budding
• fragmentation
• binary fission
• vegetative propagation

Tags

NGSS.MS-LS3-2

During the Lag Phase, bacteria are

• doubling the number of cells every generation.
• creating new cells at the same rate as cells are dying.
• making proteins, ribosomes, obtaining nutrients.
• dying at a faster rate than they are being produced.

During the stationary phase, bacteria are

• dying at a faster rate than reproduction.
• doubling in number every generation.
• reproducing at the same rate as they are dying.

• making proteins, ribosomes, and obtaining nutrients.

Which statement is TRUE about temperature and bacterial growth?

• Bacteria grow between a temperature range.
• Maximum growth occurs at the optimum temperature.
• Metabolic rate increases with temperature.
• all of these are true

What is the range that represents a psychrophile?

• cold
• med
• warm

Most bacteria that grow on/in humans are 

• psychrophiles
• mesophiles
• thermophiles
• extreme thermophiles

The problem with psychrotrophs is that 

• they can grow at high oven temperatures and spoil food.
• they can grow at freezer temperatures and spoil food.
• they can grow at refrigerator temperatures and spoil food.
• All of these are correct.

• Coccus
  Coccus
• Bacillus
• Spirillum
• virus

• Coccus
  Coccus
• Bacillus
• Spirillum
• virus