Practical Task: Analysing flower structures and how they relate to pollination method
Students need to:
1. Make observations of at least two different dissected flowers and draw two detailed, clearly labelled diagrams of their structures.
2. Write a well reasoned description of the pollination method for the flower including how the structure relates to it’s function. Use the table on page 148 of the textbook to help.
3. Make a short 1-2 minute video discussing the structures of the flower and it’s pollination method.
You will be marked based on the achievement standard below
• Students construct representations of their data to reveal and analyse patterns and trends, and use these when justifying their conclusions.
• They analyse the relationship between structure and function at cell, organ and body system levels
Marking Scheme
(Criteria in brackets)
Flower diagrams (2) /10
(labels, neatness, accuracy)
Analysis of flower structure
and suggested pollinators (2) /10
(Discussion of relationship between structures and function
and how it related to the pollination method)
Video Presentation of the above /5
(Presentation, detail and accuracy)
peduncle click to hear
Terminal offshoot of the stem or twig; it first connects the flower, then the fruit, to the plant.
ovule click to hear
Small rounded structure produced by the ovary and containing the female cell; after fertilization, the seed develops from it.
ovary click to hear
Hollow structure containing one or more ovules; the fruit usually develops from it after fertilization.
receptacle click to hear
Enlarged portion of the peduncle containing and supporting the other parts of the flower.
sepal click to hear
Usually green part of the flower that protects the flower’s internal structures; it may fall after flowering occurs or remain until the fruit has ripened.
petal click to hear
Usually colorful and scented part of the flower that surrounds the male and female reproductive organs; it often helps attract pollinators.
anther click to hear
Upper part of the male floral organ (stamen) that produces pollen grains; at maturity, it splits to release them.
filament click to hear
Cylindrical axis connecting the anther to the rest of the flower.
stigma click to hear
Upper part of the female floral organ (pistil) that receives and holds pollen.
style click to hear
Cylindrical axis connecting the stigma to the ovary.
pistil click to hear
Each of the female floral organs at the flower’s center, consisting of an ovary, a stylus and a stigma.
calyx click to hear
Part of the flower composed of all its sepals.
stamen click to hear
Each of the male floral organs, consisting of a filament and an anther.
corolla click to hear
Part of the flower composed of all its petals.
Practical Task: Analysing flower structures and how they relate to pollination method
Students need to:
1. Make observations of at least two different dissected flowers and draw two detailed, clearly labelled diagrams of their structures.
2. Write a well reasoned description of the pollination method for the flower including how the structure relates to it’s function. Use the table on page 148 of the textbook to help.
3. Make a short 1-2 minute video discussing the structures of the flower and it’s pollination method.
You will be marked based on the achievement standard below
• Students construct representations of their data to reveal and analyse patterns and trends, and use these when justifying their conclusions.
• They analyse the relationship between structure and function at cell, organ and body system levels
Marking Scheme
(Criteria in brackets)
Flower diagrams (2) /10
(labels, neatness, accuracy)
Analysis of flower structure
and suggested pollinators (2) /10
(Discussion of relationship between structures and function
and how it related to the pollination method)
Video Presentation of the above /5
(Presentation, detail and accuracy)
peduncle click to hear
Terminal offshoot of the stem or twig; it first connects the flower, then the fruit, to the plant.
ovule click to hear
Small rounded structure produced by the ovary and containing the female cell; after fertilization, the seed develops from it.
ovary click to hear
Hollow structure containing one or more ovules; the fruit usually develops from it after fertilization.
receptacle click to hear
Enlarged portion of the peduncle containing and supporting the other parts of the flower.
sepal click to hear
Usually green part of the flower that protects the flower’s internal structures; it may fall after flowering occurs or remain until the fruit has ripened.
petal click to hear
Usually colorful and scented part of the flower that surrounds the male and female reproductive organs; it often helps attract pollinators.
anther click to hear
Upper part of the male floral organ (stamen) that produces pollen grains; at maturity, it splits to release them.
filament click to hear
Cylindrical axis connecting the anther to the rest of the flower.
stigma click to hear
Upper part of the female floral organ (pistil) that receives and holds pollen.
style click to hear
Cylindrical axis connecting the stigma to the ovary.
pistil click to hear
Each of the female floral organs at the flower’s center, consisting of an ovary, a stylus and a stigma.
calyx click to hear
Part of the flower composed of all its sepals.
stamen click to hear
Each of the male floral organs, consisting of a filament and an anther.
corolla click to hear
Part of the flower composed of all its petals.
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