Bacteria

Question 1

What are the 3 Main Bacteria in the notes

Answer 1

Cocci
Bacilli
Spirilli

Question 2

What is the cell wall composed of in bacteria?

Answer 2

A peptidoglycan layer

Question 3

How can you identify a positive gram-stained bacteria and what does it indicate?

Answer 3

Purple after stain indicates,

large amount of peptidoglycan cell wall above the phospholipid bilayer

Question 4

How can you identify a negative gram-stained bacteria and what does it indicate?

Answer 4

Pink (less purple) after stain indicates,

small amount of peptidoglycan cell wall between double phospholipid bilayers

Question 5

What are Photoautotrophic bacteria?

Answer 5

Bacteria that are photosynthetic and use light as energy source
Ex. Green algae

Question 6

What are Chemoheterotrophic bacteria?

Answer 6

Bacteria that consume organic molecules for both energy and carbon
Ex. E Coli

Question 7

What is a commensialism relationship?

Answer 7

When the symbiont benefits and the host remains unharmed

Question 8

Do all bacteria need oxygen to survive?

Answer 8

No

Question 9

How did the endomembrane system form in eukaryotes?

Answer 9

It formed when the plasma membrane invaginated or folded in on itself

Question 10

How did the motichondria form in eukaryotes?

Answer 10

One prokaryote engulfed another prokaryote and the inner prokaryote became the mitochondria

Question 11

What is some evidence supporting the idea that mitochondria were come from endosymbiosis of another prokaryote?

Answer 11

Mitochondria has its own circular DNA, has ribosomes, splits by binary fission, and has similar shape