Sunday, January 9, 2011

Biodiversity - Kingdom Plantae


The Key Characteristics of living things from Kingdom Plantae :

Type of organism:
- Multicellular, Eukaryotic organisms

Mode of Nutrition:
- Plants get their nutrition via synthesizing food themselves.
- The formula for this action to take place is:

Carbon Dioxide (CO2) + Sunlight (Photons) + Water (H2O) -->
Glucose (Carbohydrates, Cm(H2O)n) + Oxygen (O2)

- Non-motile organisms (Does not move around, stays in a fixed position)

Reproduction System:
- Plants mainly reproduce by seeds, while some reproduce by spores.

Examples of plants that reproduce by seeds:
Flowering plants - Apple tree, Durian tree, Rose bush
Non-flowering plants - Pine tree, Gingko tree

Examples of plants that reproduce by spores:
Ferns - Stag's Horn Fern, Bird's Nest Fern
Mosses - Sphagnum Moss, Haircap Moss

Different species:

- Breadcrumb Sponge

- Vascular Plants

- Plants that reproduce by spores
- Non-vascular plants

Flowering Plants:
Angiosperms - Flowering plants with seeds inside their flowers
Examples: Apple tree, Durian tree, Rose bush (basically plants reproducing by seeds)

Non-Flowering Plants (A plant that does not bear flowers):
Gymnosperms - Plants that have their seeds open to the air
Examples: Pine tree, Cedar tree, Redwood tree, Spruce tree, Gingkos (a.k.a. Maidenhair tree)

Land Plants:
Examples: Rose bush, mango tree, apple tree

Water Plants:
Examples: Seaweed, Duckweed

Plant Parts:
Main Plant Parts : Roots, Stem, Leaves, Flowers, Fruit, Seeds

- Anchor plant to the soil
- Water and minerals are absorbed from the soil through the roots
- Tiny root hairs stick out of the root, helping in the absorption.
- Some plants such as carrots, store food in their roots.

- Support the plant
- Water and dissolved nutrients from the soil travel up the stem through the xylem Vessel
- Food travel down the stem to the roots throgh the phloem vessel.
- Can be bendable (daisy)
- Can be woody (oak tree)

- Most plants' food is made in their leaves.
- Designed to capture sunlight which the plant uses to make food through a process called photosynthesis.
- Have stomata (opening for gas exchange) on underside of leave.

- Reproductive part of most plants.
- Contain pollen and tiny eggs called ovules
- After fertilization of the ovule, the ovule develops into a fruit.

- Covering for seeds
- Can be fleshy (apple) or hard (nut)

- Contain tiny embryo of new plants
- Forms fruit

Done by : See To Yu Xiang, Johanan Teo Yong Ren, Chio Jia Le, Tim Yap Ming En
School of Science and Technology, Singapore

ID1281479336, 'Would Someone give me ten examples about gymnosperms'


  1. I have learnt that some plants such as carrots, store food in their roots and some example of mosses are sphagnum Moss and haircap Moss.

    I have discovered that most algae are no longer classified within the Kingdom Plantae. The algae comprise several different groups of organisms that produce energy through photosynthesis, each of which arose independently from separate non-photosynthetic ancestors.

  2. I learnt that plants that do not have flowers are generally called gynosperms ( they have seeds exposed to the air) and ginko trees are one such example. I have discovered that there have been 287,655 different identified species of plants existing on the planet, with probably millions more to be identified.

  3. i learnt that Angiosperms are flowering plants with seeds inside their flowers and Gymnosperms are plants that have their seeds open to the air.

    I discovered that in the year of 2004, some 287,655 species had been identified, of which 258,650 are flowering and 18,000 bryophytes

  4. 1) I have learnt that some plants reproduce by spores and that an example of a plant that has bendable stems is the daisy.

    2) I have discovered that the greatest depth at which plant life has been found is 884 feet.

  5. I learnt that plants are autotrophic--they are able to make their own food.
    Mosses were the earliest plants on earth.

    I discovered that vascular plants are plants which have vessels that contain fluids.

  6. I have learnt that motile means the ability to move by themselves.

    I have discovered that meristem is the tissue in most plants consisting of undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place.

  7. I learnt that Plantaes has chlorophyll which allows them to absorb light energy for photosynthesis.

    I discovered that Plantae is one of the two kingdoms first discovered.

  8. I learnt that seeds contain the tiny embryo of new plants, and that flowering plants are called Angiosperms, and that not-flowering plants are called Gymnosperms.

    I have discovered that algae most algae, like the seaweeds, are not classified in the Plantae Kingdom.

  9. I learnt that flowering plants can be placed under Angiosperms - Flowering plants with seeds inside their flowers.

    I discovered that conifer might be the ancestors of seeds.

  10. I have learnt that Gymnosperms are plants that have their seeds open to the air.

    I have discovered that some plants have hair on leaves that would trick an insect to thinking they were needles.

  11. I have learnt of the terms Angiosperms and Gymnosperms.
    I have discovered that two vascular plants in Antarctica are extremely hardy to cold, namely Antarctic hair grass and pearlwort.

  12. I have learnt the term for non-flowering plants is gymnosperms.
    I have discovered that no species of wild plant produces a flower or blossom that is absolutely black.

  13. By the way... Why is vascular plants placed under algaes when it should be the other way?

  14. To Davina : Sorry, its just our weird way of listing a characteristic under a species of plants, answering to that question, no particular reason to which why was it placed under 'ferns'. Does that answer to your question?

    Vascular basically means a plant that has xylem and phloem tubes in it, or a direct meaning would be having vessels that conduct or circulate fluids.

    - Yu Xiang