5th grade ch. 4 lesson 2 how do stems & roots help a plant
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Ch.4 Lesson 2Ch.4 Lesson 2
How do stems How do stems & roots help & roots help a plant?a plant?
stems• have 2 special tissues:
1.xylem tissue- carry materials from roots leaves
xylem
xylem
2.phloem tissue- carry sugar away from leaves
phloem
kinds of stems
woody non-woody
lots of xylem tissue
less xylem tissue
examples: trees
& shrubs
examples: pea plants & dandelion
woody stem non-woody stem
functions of roots
•anchor plant - hold it in place
•some store food•absorb water from soil- enters thru. root hairs
2 kinds of root systems
taproot fibrous roots
large root that grows
straight down
many roots grow in
all directionsYoutube-Plant parts song
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