A2.2 Cell structure HL

Question 1

Endosymbiosis

Answer 1

Eukaryotic cells evolved from symbiotic prokaryotes

Question 2

Mitochondria Origin

Answer 2

Thought to be from endosymbiosis

Question 3

Multicellularity

Answer 3

Organisms with multiple cells

Question 4

Cell Differentiation

Answer 4

Specialization in multicellular organisms

Question 5

Anucleate Cells

Answer 5

Cells lacking a nucleus, like red blood cells

Question 6

Chloroplast Endosymbiosis

Answer 6

Chloroplasts in plants likely evolved from engulfed photosynthetic bacteria.

Question 7

Selective Advantage

Answer 7

Endosymbiosis provided energy efficiency, giving eukaryotes an evolutionary edge.

Question 8

Evolution of Eukaryotes

Answer 8

Resulted from a symbiotic relationship between two prokaryotic cells

Question 9

Evidence of Endosymbiosis

Answer 9

Mitochondria and chloroplasts have their own DNA, similar to bacteria

Question 10

Multicellular Organism Advantage

Answer 10

Allows for specialization and greater survival adaptability