Chapter 29: Plant Diversity I (how plants colonized land)

Question 1

Charophyte

Answer 1

Green algae that is the closest living relative to land plants

Question 2

Charophyte/Land Plant Similarities

Answer 2

1. Rings of cellulose synthesizing proteins in the plasma membrane
2. Peroxisomes: minimize loss of organic products from photorespiration
3. Structure of flagellated sperm
4. Formation of phragmoplast

Question 3

Phragmoplast

Answer 3

Group of microtubules that forms between daughter nuclei of diving cell, between anaphase and telophase. Acts as a scaffold for the cell plate, which forms across the midline of the dividing cell. The cell plate then forms a new cross wall separating the daughter cells.

Question 4

Most similar charophytes to land plants

Answer 4

chara and coleochaete

Question 5

Sporopollenin

Answer 5

durable polymer that prevents exposed zygotes from drying out (because charophyte live in shallow waters)