Bacteria

Question 0

What characteristics do all prokaryotes have in common?

Answer 0

• single celled
• single circular chromosome
• no nucleus
• no membrane

Question 1

What are the three basic bacteria shapes?

Answer 1

Bacilli (rod shaped)
Cocci (sphere shaped)
Spirilla (spiral shaped)

Question 2

What is the known group of prokaryotes and where can they be found?

Answer 2

Bacteria; almost everywhere

Question 3

Name the two kingdoms for prokaryotes.

Answer 3

Kingdom Eubacteria

Kingdom Archaebacteria

Question 4

Where are Archaebacteria found?

Answer 4

Extreme environments

Ex. Hot sulfur springs and thermal vents in the ocean floor

Question 5

What are thought to be the oldest organisms on Earth?

Answer 5

Archaebacteria

Question 6

What does heterotrophic mean?

Answer 6

It means the bacteria doesn’t make its own food.

Question 7

Are all bacteria heterotrophic? Explain.

Answer 7

Most are, but some make their own food using chrolophyll.

Question 8

What are three ways some bacteria help humans?

Answer 8

Make food
Break down harmful substances
Help digest food

Question 9

What are the parts of bacteria?

Answer 9

Cell wall
Cell membrane
Pili (little hairs)
Flagella (tail)
Cytoplasm
Ribosomes