Wednesday, May 9, 2012

Test on Plants - Study Guide

Chapter 12
What is a plant?
Seedless plants ?
Seed plants?
Structures of a flower
Structure of a seed?
Diagram the branching groups of plants and know examples?
Know the importance of the different groups?
Why are flowering plants more diverse?
What are stomata? (pg 378)
Be able to identify a plant as gymno or angio, monocot or dicot?
Understand the role of pollinators in the flowering plant?
How are non-flowering plants pollinated?
Review the section reviews and the worksheets that I handed out at the beginning of the unit.

What are the difference between monocot and dicots?
BE ABLE TO IDENTIFY PLANTS by general categories.

Sunday, May 6, 2012

flower anatomy quiz

Generally green colored exterior protective coverings of a flower.
Mostly colored to attract pollinating insects and are framed by sepals.
The sweet liquid at the base of petals that attracts insects.
Pollen producing male organs that include the anther and supporting filament.
Female organs that produce ovules inside the ovary, which is attached to the style and stigma.

This diagram shows the major flower parts that may be found on a plant.Image - NBII.Gov; Text correction Margaret Esaak, licensed to
  • Anther: The anther is part of the stamen and produces the pollen.

  • Articulation: Another term for articulation is internode. Articulation describes the space between two nodes (joints).

  • Calyx: The whorl of sepals on the outside of a flower is referred to as the calyx.

  • Corolla: The whorl of petals is called the corolla.

  • Filament: The filament provides support for the anther in the stamen.

  • Floral Axis: The floral axis is the stem holding the reproductive flower parts.

  • Microsporangium: The microsprangium is located in the anther and produces microspores, which become male gametophytes. These male gametophytes will later be used in forming the pollen grains.

  • Nectary: The nectary produces nectar, a sweet liquid that attracts insects and birds for feeding. As they drink the nectar, the nearby pollen sticks to them and is transported to other flowers.

  • Ovary: The ovary houses the ovules and will become the fruit after pollination.

  • Ovule: The ovules contain egg cells and become the seeds after pollination.

  • Pedicel:The pedicel is the flower stalk.

  • Perianth: The perianth is the collective term for the calyx and corolla.

  • Petal: The petal is designed to attract pollinators to the flower and protect the stamen and pistil. Many have patterns that can be seen in ultraviolet light by bees and other insects. These indicate where the nectar is located.

  • Pistil: The pistil is the female reproductive part in the flower. It includes the ovary, style, and stigma.

  • Sepal: Sepals are found on the outside of the flower in a whorl. They are usually green. The group of sepals is called the calyx.

  • Stamen: The stamen is the male reproductive organ in the plant. It consists of the anther and filament.

  • Stigma: The stigma is the sticky surface where pollen lands and is collected to fertilize the ovules.

  • Style: The style is part of the pistil and holds the stigma above the ovary.

monocot eudicot

Angiosperms, flowering plants, are divided into two groups: monocots and dicots.

T.S. of a Monocot Root
Cross-Section of a Monocot Root

Interesting Fact =
Monocot seeds have one "seed leaf" termed a cotyledon (in fact monocot is a shortening of monocotyledon). Dicots have two cotyledons. Both groups, however, have the same basic architecture of nodes, internodes, etc.

Comparison of monocot (left, oat) and dicot (right, bean) gross anatomy