RHS Level 2 Certificate Week 6
Upcoming SlideShare
Loading in...5
×
 

RHS Level 2 Certificate Week 6

on

  • 3,425 views

 

Statistics

Views

Total Views
3,425
Views on SlideShare
3,417
Embed Views
8

Actions

Likes
1
Downloads
63
Comments
0

2 Embeds 8

http://www.slideshare.net 5
http://www.northantsadultlearning.org.uk 3

Accessibility

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

RHS Level 2 Certificate Week 6 RHS Level 2 Certificate Week 6 Presentation Transcript

  • RHS Level 2 Certificate Week 6 – Flowers and Seeds
  • Learning outcomes
    • 1. Parts of the flower
    • 1.1 Name the main types of inflorescence found on plants.
    • 1.2 Describe the structure of a typical dicotyledonous flower.
    • 1.3 State the role of each component of the flower.
    • 1.4 Define the terms: ‘monoecious’, ‘dioecious’ and ‘hermaphrodite’.
    • 1.5 Describe how petals and sepals are modified to tepals in specific genera.
    • 2. Fruits and seeds
    • 2.1 Define the term: ‘seed’ and state the role of seeds in plant reproduction.
    • 2.2 Define the term ‘fruit’ and state the role of fruit in plant reproduction.
    • 2.3 State that fruit can be divided into dry, hard, fleshy, succulent, dehiscent and indehiscent types.
    • 2.4 Name one example of each type of fruit listed in 2.3.
    • 2.5 State what is meant by the term false fruit.
    • 2.6 Describe the structure of typical monocotyledonous and dicotyledonous seeds.
  • Parts of the flower Female parts Carpel = Stigma + style + ovary + ovule Male Parts Stamen = Anther + filament External parts Petal Sepal Bract Pedicel or peduncle View slide
  • Types of inflorescence
    • Spike
    • Raceme
    • Panicle
    • Umbel
    • Corymb
    • Composite
    View slide
  • Role of each part of the flower
    • Male parts – anthers produce pollen which contains ‘sperm’.
    • Female parts – stigma receives pollen, ovules contain ‘eggs’ awaiting fertilization
    • Petals – brightly coloured, ultraviolet sensitive pigments
    • Sepal – leaf like structure that encloses and protects the flower bud
    • Bract – modified leaf below flower or inflorescence
    • Tepal – modified leaf that takes the place of petals in some species e.g. Tulipa sp.
  • Different types of flower
    • Monoecious – separate male and female flowers on the same plant
    • Dioecious – male and female flowers on different plants
    • Hermaphrodite – flowers containing male and female organs (which may or may not be self compatible)
  • Fruits and Seeds
    • Seed – formed from the mature fertilized ovule and containing the embryo and stored food.
    • Fruit – A mature ovary. Functions – protection of seed, encourage ingestion, control germination, facilitate seed dispersal.
    • False fruit – a structure that resembles a fruit but which is not derived from an ovary. For example the Yew ( Taxus baccata) has a red fleshy aril which is a false fruit. Apples Malus domestica are pome fruits which are also false fruit as the edible fleshy part is derived from the stem not the ovary.
  • Types of fruit
    • Dry – e.g. Papaver somniferum
    • Fleshy- having juicy flesh formed from the ovary . E.g. a drupe such as Prunus x domestica ‘Victoria’
    • Indehiscent – the pericarp does not split open to release the seeds. E.g. Quercus robur (English Oak).
    • Dehiscent – the pericarp splits to release the seeds e.g., Lathyrus odoratus (Sweet Pea)
  • Types of Fruit
    • Simple
    • Aggregate
    • Multiple
  • Structure of seeds
    • Parts of the seed.
    • Dicots and monocot differences. Monocots have endosperm, dicots generally do not.
    • Review diagram – monocots, role of coleptile.
  • Learning outcomes
    • 1. Parts of the flower
    • 1.1 Name the main types of inflorescence found on plants.
    • 1.2 Describe the structure of a typical dicotyledonous flower.
    • 1.3 State the role of each component of the flower.
    • 1.4 Define the terms: ‘monoecious’, ‘dioecious’ and ‘hermaphrodite’.
    • 1.5 Describe how petals and sepals are modified to tepals in specific genera.
    • 2. Fruits and seeds
    • 2.1 Define the term: ‘seed’ and state the role of seeds in plant reproduction.
    • 2.2 Define the term ‘fruit’ and state the role of fruit in plant reproduction.
    • 2.3 State that fruit can be divided into dry, hard, fleshy, succulent, dehiscent and indehiscent types.
    • 2.4 Name one example of each type of fruit listed in 2.3.
    • 2.5 State what is meant by the term false fruit.
    • 2.6 Describe the structure of typical monocotyledonous and dicotyledonous seeds.