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Discovering Plants. Form and Function. Peduncle – Flower stalk . Receptacle - Part of flower stalk bearing the floral organs, at base of flower . Sepal - Leaf-like structures at flower base, protects young flower bud . Calyx - All the sepals together form the calyx .

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form and function
Form and Function

Peduncle – Flower stalk.

Receptacle - Part of flower stalk bearing the floral organs, at base of flower.

Sepal - Leaf-like structures at flower base, protects young flower bud.

Calyx - All the sepals together form the calyx.

Petal - Located in and above the sepals, often large and colourful, sometimes scented, sometimes producing nectar. Often serve to attract pollinators to the plant

why do plants have petals
Why do Plants Have Petals
  • to help the flower reproduce and make more flowers.
  • is to attract insects and mammals to the flower for pollination; to a certain degree they also offer a small amount of protection to the reproductive structures.
monocot and dicot
  • Monocots (or monocotyledons) and dicots (or dicotyledons) are the two main types of flowering plants. They differ in morphological characteristics of leaves, stems, flowers and fruit of flowering plants.
corn seed
Corn Seed
  • Monocotsare seeds that only have one cotyledon, such as the corn seed.
  • The corn seed does have a seed coat, but it does not slip off as easily as the bean seed.
  • It is a lighter color than the rest of the seed and is called the endosperm.
bean seed
Bean Seed
  • Dicotsare seeds that have two parts, such as a bean seed.
  • The bean seed has a slit going down the middle of the seed. Inside is a tiny plant called an embryo.
  • The two large parts of the seeds are called cotyledons.
how plants grow
How Plants Grow
  • Every root grows a mass of tiny hairs near its tip to absorb water from the soil.
plants and our environment
Plants and Our Environment
  • Plants are important to the balance of nature. For animals and people, plants provide food, shelter, useful tools, and products.
monocot and dicot characteristics
Monocot and DicotCharacteristics



  • Embryo with 1 cotyledon, usually developing under ground.
  • Roots usually fibrous.
  • Growth is mostly herbaceous.
  • Vascular bundles scattered.
  • Leaves usually parallel-veined.
  • Flower parts usually in multiples of 3.
  • Embryo with 2 cotyledons, usually developing above ground.
  • A primary root usually present.
  • Growth either herbaceous or woody.
  • Vascular bundles usually forming a ring.
  • Leaves usually net-veined.
  • Flower parts usually 4 or 5.