Chapter 9 Flashcards
around how long ago did plants adapt for dry land?
500 mya
What is a plant?
a terrestrial multicellular eukaryote that conducts photosynthesis
shoot system
Photosynthetic structures exposed to light and air above ground
root system
Below ground anchorage structures exposed to water and minerals in soil
what systems helped the plant adapt for dry land?
a shoot system and a root system
function of pollen
Protects sperm, allowing them to be carried by wind or animals
function of the egg in plants
Remains in female reproductive organ, allowing the embryo to develop within the
mother plant’s body
vascular system
Network of tubes that transports water, sugar, and minerals
cuticle
waxy coating that prevents water loss
leaves
main site of photosynthesis and gas exchange through pores
lignin
Chemical in cell walls that stiffens them, increasing support
what parts of a plant are its shoot structures?
Stems, Leaves, & Structures for reproduction,
such as cones or flowers
