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Reading Jigsaw reading Task 6. Read the text ‘Flower parts’ Flowering plants are the most numerous of all the divisions in the Plant Kingdom. The flowering plant has two major systems: a root system and a shoot system. The root system enables flowering plants to obtain water and nutrients from the soil. The shoot system allows plants to obtain food through photosynthesis and to reproduce. A flower is responsible for seed development and reproduction.
A complete flower has four basic parts:
Petals are colourful part of the flower. Petals collectively called the corolla. They are different in form and size. Their function is to attract insects and protect other flower parts within. The insects pick up the nectar, which is usually in the centre of a flower. They pick up pollen on their bodies and carry it to the next flower. Thus, insects pollinate flowers.
Sepals are special types of leaves. They form a ring around the outside of a flower bud. Their job is to protect the flower before it opens. Sepals are usually green. In some flowers, sepals are the same colour as the petals. After the flower has opened, the sepals can be seen behind the petals. Sepals collectively called the calyx.
Stamen is the male part of a flower. It makes pollen. Pollen is usually of yellow colour. Stamen has two parts: an anther and a filament. The anther produces and contains pollen. It is usually on the top of the filament. Filament holds up the anther.
Pistil is the female part of a flower. It has three parts: the stigma, the style and the ovary. Stigma is located in the centre of the flower and receives the pollen grains. Style is the long part of the pistil that leads to the ovary. Ovary usually at the bottom of the flower and contains ovules. Ovule is the part of the ovary that becomes the seeds.
In addition to the four basic parts, the complete flower has pedicel and receptacle. The pedicel, or the flower stalk, supports the flower. The enlarged part of the pedicel where it joins the flower is the receptacle.
So, remember:a flowering plant has both a root system for water and nutrition and a shoot system for reproduction and photosynthesis. A flower that has both male and female reproductive organs is referred to as a perfect flower.
Task 7. Mark the sentences T if the sentence is true and F if it is false
№
Sentence
True / False
1
A flowering plant has two major systems: a root system and a shoot system
2
The shoot system is where photosynthesis and reproduction take place
3
Sepals collectively called the calyx
4
The flower itself has two parts: the petals, which attract insects and the sepals which help support and protect the flower
5
Pistil is the male part of a flower and it consists of two parts: the filament and the anther
6
Flowers are of different size, form and colour
7
Stamen is the female part of a flower and consists of the stigma, style and ovary
8
Insects bring the nectar to a flower to feed it
9
In all flowers sepals are the same colour as the petals
10
A flowering plant has three major systems: a root system, a shoot system and a flower system
Task 8. Fill in the gaps with appropriate word and read the sentences 1. __________ are responsible for development of seed and reproduction.
a) leaves
b) roots
c) flowers
d) fruits
2. There are __________ main flower parts in angiosperms*. (*seed-bearing vascular plants)
a) two
b) four
c) seven
d) nine
3. Colorful and often scented part of the flower attracts __________ as pollinators.
a) animals
b) birds
c) insects
d) people
4. Stamen - the part of the flower that produces __________.
a) pollen
b) ovules
c) nectar
d) seeds
5. Ovary - structure at the base of the pistil that houses __________.
a) pollen and nectar
b) seeds and fruits
c) stigma and style
d) the ovule or egg
6. __________ consists of the stigma, style, and ovary.
a) stamen
b) pistil
c) corolla
d) calyx
7. A filament and an anther are parts of __________.
a) seed
b) pistil
c) fruit
d) stamen
8. Sepal is green, __________ structure that protects the budding flower.
a) leaf-like
b) neck-like
c) needle-like
d) root-like
9. People are attracted by ___________ of a flower.
a) pollen grains
b) four parts
c) scent and colour
d) nectar
10. Stigma is located at the top of a __________ and receives the pollen grains.
a) corolla
b) calyx
c) stamen
d) pistil
Task 9. Individual work ‘Flower anatomy’. Label the flower parts
1. ___________
2. ___________
3. ___________
4. ___________
8. ___________
7. ___________
6. ___________
5. ___________
Summarizing A Power Point Presentation ‘Flower parts’ Task 10. Write any words you have learnt from this lesson in Vocabulary Box