Bacteria Feeding Quiz

Most bacteria are:

• Autotrophic

• Heterotrophic

• Chemosynthetic

• Photosynthetic

Extracellular digestion means:

• Breaking down food inside the cell

• Breaking down food outside the cell

• Producing energy in the cell membrane

• Making proteins inside the cell

The role of enzymes in bacterial feeding is to:

• Build cell membranes

• Break down food into smaller sugars, fats, and proteins

• Store energy

• Make DNA

When bacteria land on bread, they first produce:

• Sugars

• Enzymes

• Fats

• Proteins

Enzymes are secreted to:

• Inside the cell

• The outside of the cell

• The nucleus

• The mitochondria

Small food particles are:

• Released into the environment

• Absorbed into the bacterial cell

• Stored in the cell wall

• Broken down in the nucleus

Extracellular digestion means the cell takes in food before digesting it.

• True

• False

Enzymes are absorbed into the bacteria together with the digested food.

• True

• False

When bacteria digest food, the enzymes remain on the bread.

• True

• False

If bread is left in a warm, humid place and bacteria grow, how do they obtain nutrients?

• By photosynthesis

• By extracellular digestion

• By respiration

• By diffusion