Lecture 2: Plants

Question 1

Cyanobacteria

Answer 1

Use chlorophyll a and produce O2

Question 2

Photosynthesis

Answer 2

CO2 +H2O (+ light energy) –> sugar + O2

Question 3

Primary endosymbiosis

Answer 3

A Cyanobacteria was engulfed. Chloroplast has two membranes

This produced the first photosynthetic eukaryotes

Question 4

Secondary endosymbiosis

Answer 4

A eukaryote engulfed a eukaryotic algal ( red or green) cell which became chloroplast

In these organisms, the chloroplast has three membranes

Question 5

Euglenoids

Answer 5

Secondary endosymbiosis where green algae are the endosymbionts

Question 6

Stramenopiles

Answer 6

Secondary endosymbiosis where red algae are the endosymbionts

(Brown algae, golden brown algae, diatoms)

Question 7

Dinoflagellates

Answer 7

Secondary and tertiary endosymbiosis

Still produce characteristic red algal pigments (secondary) and have proper chloroplasts derived from brown algae (tertiary)

Question 8

Plantae

Answer 8

That Claude ( of eukaryotic life) with chloroplasts derived from primary endosymbiosis

Question 9

Red algae

Answer 9

• Vary from single-celled to elaborate branched multicellular organisms
• They have cellulose cell walls
• They only have chlorophyll a (like Cyanobacteria)

Question 10

Green plant

Answer 10

1. Eukaryote with chloroplasts derived from primary endosymbiosis (same as all plants
2. Chloroplasts with chlorophyll a and b
3. Store carbohydrates as starch

Question 11

Photoautotrophes

Answer 11

Perform photosynthesis; use CO2 as carbon source