SeedsMonocot vs.

DicotAccelerated Biology

Seed AnatomySeed Anatomy

• Seed coat – protects embryo Seed coat – protects embryo from injury and harsh from injury and harsh environmentenvironment

• develops from the outer develops from the outer layers of the ovulelayers of the ovule

• Endosperm – portion of seed Endosperm – portion of seed that stores food (energy) for that stores food (energy) for the developing embryothe developing embryo

Seed AnatomySeed Anatomy

• Cotyledon – seed leavesCotyledon – seed leaves• part of the embryopart of the embryo• the first leavesthe first leaves• transfer nutrients to the

embryo

Monocot – I cotyledon Ex) corn

Dicot – 2 cotyledons Ex) Kidney and Lima beans

Monocot vs. Dicot

Monocot vs. Dicot

Seed AnatomySeed Anatomy

• Radicle – embryonic root Radicle – embryonic root (becomes root)(becomes root)

Seed AnatomySeed Anatomy

• EpiEpicotyl – part of the shootcotyl – part of the shoot

• stem stem above above cotyledonscotyledons

• HypoHypocotyl – part of rootcotyl – part of root

• stem stem below below cotyledonscotyledons

Monocots

Leaf veins parallel

Vascular tissue scattered

Flower parts in threes

Ex) lilies, grasses, corn

DicotsDicots

Leaf veins netlike

Ring of vascular tissue

Flower parts in fours or fives

Ex) trees, geranium, cacti

Monocots vs. DicotsMonocots vs. Dicots

Monocots vs. DicotsMonocots vs. Dicots

Monocots vs. DicotsMonocots vs. Dicots