Chapter Two
Unit A
Plant Systems
Lesson 1
How do plants produce
food?
Vocabulary Words
Chlorophyll Chloroplast Grana Photosynthesis Stomata
Standards

Students know plants use carbon dioxide
and energy from sunlight to build
molecules of sugar and release oxygen
Photosynthesis



Plants produce food in
a process called:
photosynthesis
Photosynthesis takes
place in a chloroplast
(see picture)
Water + carbon
dioxide + sunlight =
glucose + oxygen
Plant Leaves



pg. 45
Leaves are the “food factories
There are many shapes & sizes
Parts of leaf
 Stomata: holes that allow
oxygen & carbon dioxide to
exit & enter
 Upper & lower epidermis:
protects the leaf
 Veins: carry materials inside
the leaf
 Chloroplast: photosynthesis
takes place
Lesson 2
How do plants move
materials?
Vocabulary Words
Nonvascular plant Phloem Transpiration Vascular plant Xylem
Standards

Students know how sugar, water, and
minerals are transported in a vascular
plant
Vascular vs. Nonvascular Plants

Veins transport
materials in plants



Ex. Water, sugar, waste
Have stems, roots, &
leaves
Ex: Sunflower, redwood
tree




Do not have veins to
transport materials
Do not have stems,
roots, or leaves
Small in size
Ex: moss, liverworts,
hornworts
Vascular Plants
Nonvascular Plants
Parts of Vascular Plant


Roots
 anchors the plant to the
ground
 absorbs water & minerals
from soil
 stores food
Stem
 Supports plant
 Holds up leaves to sun
 Transports water &
glucose
 Xylem & Phloem



Xylem
 Carries water from the
roots to the stem &
leaves
Phloem
 Carries sugar from
leaves to stem & roots
Transpiration
 Water evaporates &
moves up stem
Roots & Stems we eat!