Eukaryotes

Question 1

What is the Endosymbiont Theory?

Answer 1

Mitochondria and chloroplasts were once free-living proto-bacteria (prokaryotic) cells that were engulfed by an Archaean host cell = created eukaryotic cells

Question 2

What is the evidence for the Endosymbiont Theory?

Answer 2

Mitochondria and Chloroplast have a double membrane with their own genetics and ribosomes for autonomous growth and reproduction.

Question 3

What are the key features of eurkaryote cells?

Answer 3

1. compartmented by endomembrane system
2. Have mitochondria (plants ALSO have chloroplast)
3. complex cytoskeleton
4. multiple linear chromosomes housed in a nucleus
5. advanced signalling cascades

Question 4

What are examples of Eukaryotes?

Answer 4

land plants, fungi, animals

Question 6

What are the 2 features of reproduction only seen in Eukaryotes?

Answer 6

1. Two parents give rise to offspring with a unique combination of gene from those two parents
2. Sex and sex differentiation are phenomena only occurring in eukaryotes