lecture 15: eukaryotic cells

Question 1

Chromatophores – what do they do? What is the eukaryotic equivalent?

Answer 1

light-harvesting complexes for photosynthesis

Question 2

What do granules do?

Answer 2

they are food storage containing polysaccharides, sulfur, or phosphate reserves.

Question 3

What do sulfur gloules do?

Answer 3

store elemental sulfur to energy metabolism

Question 4

Why is it important for Gas vacuoles to have bacteria?

Answer 4

they provide buoyancy in aquatic bacteria (move to light or oxygen levels)

Question 5

What are magnetosomes? What is their function?

Answer 5

Contain magnetic iron compounds, allowing bacteria to align with the Earth’s magnetic field. This helps bacteria move toward low oxygen enviornments.

Question 6

What are some other inclusion bodies and their use?

Answer 6

Poly-β-hydroxybutyrate (PHA): Stores lipids.

Glycogen: Stores glucose.

Polyphosphates: Stores inorganic phosphate.

Question 7

What does the mitochondria do?

Answer 7

POWERHOUSE OF THE CELL (producing ATP)