Hello, my name is Mrs. Mehrin and I'm so excited to be learning all about parts of a flowering plant and what they do with you.

Let's begin.

Welcome to today's lesson from the unit Reproduction and Life Cycles of Plants.

Your learning outcome is I can describe the life process of sexual reproduction in flowering plants.

Now I know that learning can sometimes be a little bit challenging but that's okay because it just means that we are going to work really hard together and we're going to learn some fabulous new things.

So, let's begin.

Here are your keywords along with the definitions for those keywords.

Now I am going to be referring to these throughout today's lesson.

However, if you find it helpful, you can pause the video here and you can jot these down.

Off you go.

Fantastic.

Well done.

So, our lesson today is going to be split into two parts.

Let's have a look at the first part, which is parts of a flower.

Now, plants can reproduce to create new plants or offspring in different ways.

Some plants can reproduce asexually, which means a single parent plant can create more plants.

Plants that reproduce asexually often do this using runners, tubers, or bulbs.

So here we have some runners, some tubers like you would get on your potatoes, and some bulbs.

Now flowering plants can reproduce sexually, which means that two parent plants are needed.

This type of reproduction takes place inside the flowers of the plant.

Now what do you know about the way plants reproduce using flowers? I'll give you some time now to think about it.

If you need to, you can pause the video here and then you can come back once you are ready.

Off you go.

Fantastic.

Well done.

So before we go into that, let's do a quick check-in of your learning.

So plants are only able to reproduce asexually.

Is that true or false? I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

The answer is false.

Now why do you think this is? Again, I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

So this is because plants are able to reproduce in different ways, including asexually with runners, tubers, and bulbs and sexually using flowers.

So flowers have male and female parts which allow two parent plants to reproduce or to create more plants.

Now the male part of the flower is called the stamen and there are two parts of a stamen.

And here we have the stamen circled.

So one part of the stamen is the anther, which produces and stores the pollen.

And most flowers have more than one stamen.

So next time you see some flowers go and have a really good look.

There's more than just one stamen in most of flowers.

Now, can you identify the anthers at the end of the stamens on these flowers? So, you've got three flowers here.

Have a look, can you identify where the anthers are at the end of the stamens on these flowers? I'll give you five seconds to do that now.

Off you go.

So, if you have a look, you can see that the anthers are where the pollen is, where that dusty pollen is right at the very end of each of these flowers.

And you can see they're all different shapes and sizes as well, and different colours.

They're not all exactly the same, which is really interesting.

And some of them have more stamens than others.

So we can see that the houseleek has got loads of stamens there compared to for example, the lily.

So, the part of a stamen that makes pollen is called what? Is it A, a petal, B, an ovary, or C, an anther.

I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

The answer is an anther.

Well done.

So the female part of the flower is a carpel, and here we have the carpel circled.

Now, can you remember any of the parts that make up the carpel? Think about any of your previous learning that you might have done.

Okay, I'm going to give you five seconds to have a really good think but if you need longer, you can pop the video on pause and you can come back once you're ready.

Okay, off you go.

Fantastic.

Well done.

So you might have said the stigma because we've learned about that in our previous lessons.

So the female part includes a stigma and then the ovaries.

The ovaries is that oval shaped part at the bottom of the carpel.

So there we've got the stigma and there we have the ovaries.

So the female parts can look different on different flowers but they have some similarities that can help us to identify them.

And they are usually surrounded by the male parts.

So here on this lily, you can see we've got the anthers there, which are the male parts and they're around them.

And then in the middle we have the carpel.

So we've got the stigma at the top and the ovaries on the bottom.

And here we have got so many stamens, a lot more than on the lilies, and you can see that the anthers are tiny.

And right in the middle there we have got the stigma and the ovaries that make up the carpel.

And you can see that that carpel looks very different to the one on the lily.

So on many flowers, the male and female parts are often surrounded by colourful petals just like these.

Now which of these are female parts of a flower? Is it A, the anther, B, the stigma, C, the pollen, D, the petal, or E, the ovary? Remember there may be more than one correct answer for this.

I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

The answers are B and E.

So now we are onto the first task.

It says carefully take apart two different types of flowers and identify the following parts.

So I want you to find the anther, the stigma, the ovary, and the petals.

And I want you to identify which parts of the stamen are the male part, which part of the stamen and which are parts of the carpel.

So remember the male parts are the stamen and the carpel is the female part.

So can you identify which parts are part of the stamen and which parts are part of the carpel? So I'd like you to pause the video here and have a go at doing that.

Off you go.

Fantastic.

Well done.

So, here Laura has identified parts of the flower and she says, "Do they look similar to the parts that you found?" So we've got the petals, which are the brightly coloured parts.

We've got the stamen, which is the male parts and the anthers on the very top, which contain the pollen.

Then you've got the carpel, which is the female part and she's taken these two parts, this bit apart here.

So she's taken, she's got the ovary and then she's got the stigma.

And she has done that for two different flowers.

And we can see that they're generally, they look pretty similar.

How about yours? Was yours similar or was it different to what Laura's looks like? And what was different about it? Was it the stamens? Was it the carpel? Was it the petals? What did you find was different about yours or what might have been the same? Fantastic.

Well done.

So now we are on to the second part of our learning, which is plant reproduction using flowers.

So Laura and Alex have been learning about how flowering plants have different parts to help them reproduce.

And Laura says, "I know that when plants or animals reproduce, they make more of the same type of living thing." And Alex says, "Yes, flowering plants produce seeds which grow into new plants but I cannot remember how they do this." Can you help? I'll give you five seconds to think about your answer but if you need longer, you can pop the video on pause and you can come back once you are ready.

Okay, off you go.

Fantastic.

Well done.

So plant reproduction using flowers begins with something called pollination.

And pollination is when pollen from an anther lands on a female stigma of another flower.

So some plants are pollinated by animals just like this, and some animals visit the flower for the nectar that is stored inside.

And the nectar is a sweet sugary substance that they all want and they use as food.

So what they do is they brush against the anthers and remember the anthers is where we have that dusty pollen.

And as they go past the anthers to get to the nectars that are stored inside the flower, the pollen sticks to their fur.

And when they visit another flower, this pollen then gets rubbed off on the sticky stigma as they brush past it looking for more nectar.

So they go from flower to flower to have that sweet nectar that they use as food.

And as they go from flower to flower they are transferring pollen from one flower to the stigma on another flower and then collecting more pollen from that flower and taking it to another one.

And that's how pollination happens with animals.

Now these plants are all pollinated by animals.

So you've got the lily, the poppy, and hibiscus.

Can you see how the parts of a flower are suited to their functions? I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

So before we do that, let's do a quick check-in of your learning.

And it says, what is pollination? So A, when pollen is made by the male anthers of flower.

B, when pollen is transferred from a male part of a flower to a female part.

Or C, when animals eat pollen from the female part of the flower and use it to make honey.

I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

The answer is B, when pollen is transferred from a male part of a flower to a female part.

Now sunflowers are pollinated by the wind and these flowers have pollen which is smaller and lighter so it can easily be carried on the wind.

And they have a stigma which is feathery so it helps to catch more pollen.

So these stigmas, rather than being sticky like other flowers, they are feathery and it helps them to catch that pollen that's being transferred by the wind.

Now Sam says, why don't these flowers have colourful petals? What do you think? Why do you think these flowers don't need to have colourful petals? I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

So wind pollinated flowers don't need to attract animals so they don't need to look colourful.

So remember, flowers that are colourful are those flowers that need to attract animals in order to get pollinated because animals are drawn to those colours.

And it's the same way that if you were to wear something really colourful on a summer's day, sometimes you might notice that you might have some more insects around that are more attracted to those kind of colours, but they often just fly away because you're not actually a flower.

So they don't get what they need so they will fly off and they will go and look for that sweet nectar from the plants which are colourful.

Now, true or false? All flowering plants are pollinated by animals.

Is that true or false? I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

The answer is false.

Now can you explain why? Again, I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

It's because some flowering plants have pollen, which is smaller and lighter, so it can easily be carried on the wind.

Now, Alex says, "Are seeds made when pollen lands on the stigma of a flower?" What do you think? I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

So after pollination, pollen travels from the stigma down to the ovary and it fertilises the flower.

And fertilisation happens when pollen produced by the anther, which is the male part, reaches the ovaries, which is the female parts.

And after fertilisation, seeds are then formed inside the ovary.

And here we can see the seeds that are forming.

Now let's do a quick check-in of your learning.

It says, pollen that has landed on the stigma travels down to the ovary where something happens.

Is it A, germination, B, fertilisation, or C, pollination? I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

The answer is B, fertilisation.

Now when does seed formation happen inside of flower's ovary? Is it A, before germination, B, during pollination, or C, after fertilisation? Again, I'll give you five seconds to think about your answer.

Off you go.

Fabulous work.

Well done.

The answer is C, after fertilisation.

Now, Izzy says, "Do flowers need all these parts to be able to reproduce?" So does it need the petals, the stigma, the anther, the ovary? What do you think? I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

So each part of the flower has a function and if a flower didn't have one of these parts, it would be much harder or sometimes impossible for them to reproduce.

So for example, without the colourful petals, without petals, the animals wouldn't be attracted to it in order to pollinate.

However, we do know that there are some flowering plants that do not have the brightly coloured petals and are still able to reproduce because the wind may carry some of that pollen from one to another.

But without the pollen, without the stigma, without the carpel, without all of those parts that you need, the anther, the ovaries, and the stigma, you would not be able to reproduce a plant.

So in those instances, it would become impossible for the flowers to reproduce.

So let's do a quick check-in of your learning.

It says, each part of the flower has a function that helps it to what successfully? A, reproduce, B, grow, C, find nutrition, or D, survive.

I'll give you five seconds to think about your answer.

Off you go.

Fantastic.

Well done.

The answer is A, reproduce.

So, here is the first task for task B and it says, complete the table.

So what would happen if a plant didn't have the following parts, the anther, the stigma, the ovary, or the petals? I'll give you some time now, I'd like you to pause the video and have a go at completing this table.

Off you go.

Fantastic.

Well done.

So without the anther, there would be no pollens, the plant wouldn't be able to reproduce.

Without the stigma, the flower wouldn't be able to catch the pollens so it wouldn't be able to reproduce.

Without the ovaries, the fertilisation couldn't happen so the plant couldn't make new seeds.

And without the petals, it would be harder for animas to find the flowers so fewer animals would visit and it would be less likely that pollination would happen.

Now here is the second part of task B and it says, the process of plant pollination has been mixed up.

Sort the statements into the correct order.

So I'd like you to pause the video here and have a go at doing this.

Off you go.

Fantastic.

Well done.

So it should have been pollen from the anther of a flower lands on the stigma of another flower.

Pollen travels from the stigma to the ovary.

Pollen fertilises the flower and then seeds form inside the ovary.

Well done.

So now we are on to the summary of our learning today.

So flowering plants can reproduce by making seeds, which grow into new plants.

For this to happen, flowers must first be pollinated, which happens when pollen from an anther lands on the stigma of another flower.

After pollination, pollen travels from the stigma to the ovary and fertilises the flower, then seeds are formed.

You have worked so hard today.

I am really, really proud of your fantastic work and your amazing critical thinking.

Well done.