Parts of Plants and Flowers

What are four MAJOR parts of plants?

• Leaf

•Roots

•Stem

•Flower

Functions or Jobs All plant parts have a purpose

– Collect sunlight and make food (where photosynthesis happens)

– Collect water and minerals, hold plant in the soil, and store food

– Attract insects and animals in order for the plant to reproduce

– Transport water and nutrients throughout the plant

Which is Which #1?Click on the word that matches the function

– Which part collects sunlight and makes food (where does photosynthesis happen?)

Flower

Leaf

Stem

Roots

#2– Which part collects water and minerals, holds the

plant in the soil, and stores food?

Flower

LeafStem

Roots

#3– Which part attracts insects and animals in order for

the plant to reproduce?

Flower

LeafStem

Roots

#4– Which part transports water and nutrients throughout

the plant?

Leaf

Flower

Stem

Roots

GOOD JOB!! The leaves are like the food factories of

the plant. They make the food for the plant. Have you ever noticed how plant leaves will lean towards the sun. They are made for collecting sunlight for photosynthesis!

ALRIGHT!!Roots hold the plant in the ground to help secure it. Roots also soak up water and minerals for the plant. Water is very important and is necessary for photosynthesis. Roots are also like a cellar for the plant to store extra food.

GREAT!!

Flowers are where the reproductive parts of many plants are. They look and smell a particular way in order to attract insects and animals who will move the pollen and fertilize that plant or another plant.

YIPEE!!

The stem is like a bundle of pipes that carries water, minerals, food, and other nutrients throughout the plants. The xylem carries water and minerals up and the phloem carries food and nutrients down.

SummaryThe four main plant parts and their jobs:

–Leaves: Collect sunlight and make food (where photosynthesis happens)

–Roots: Collect water and minerals, hold plant in the soil, and store food

–Flowers: Attract insects and animals in order for the plant to reproduce

–Stems: Transport water and nutrients throughout the plant

Parts of a Flower A flower is were the reproductive parts

of the plant is held. Many parts are inside of a flower. The major parts are:

-Stamen -Stigma-Pistil -Filament-Ovary -Eggs-Pollen/Sperm -Anther

Male Parts

The male parts of the flower help fertilize the egg of the flower. These parts are usually in a place that canbe easily moved by insects and animals. The male parts are the pollen/sperm, stamen, and filament. Notice thatthe last two words have the word “men” in them. REMEMBER- MEN=MALE PART

Pollen

Filament

Stamen

What Do you Remember? Pollen is the same as _______

Eggs

Sperm

Powder

Great!

Pollen is the male sex cell of a flower. Sperm is anotherway to refer to pollen.

Male Parts Continued The stamen is where all the male parts

of the flower are.

stamen

Male Parts Continued The filament is a tube like structure

that holds up the anther (a head-like structure) that makes the pollen.

filament

anther

pollen

What do you know? Click on the filament

Yes!! Good job. The filament is a tube-like

structure that holds up the anther.

Uh Oh… This is a female part called the style.

On the top is a part called the stigma. We will learn about this later in the lesson.

Oh no… This is a female part called the ovary.

We will learn more about this later in the lesson.

Oops.. This part is called the anther. This is

where the pollen is made.

What do you remember? The stamen is the ______

reproductive part of a flower

Male Female

Well Done! The stamen is part of the male

reproductive system of a flower along with the pollen, filament and anther.

Shucks!

The male parts are the stamen, pollen, anther and filament. Notice thattwo words have the word “men” in them.

REMEMBER- “MEN”=MALE PART

The Female Reproductive Organs

The pistil is the term for all the female parts of a flower. Each pistil includes an ovary (where the eggs are produced; the female reproductive cells, a style (a tube on top of the ovary), and a stigma (which the pollen sticks to during fertilization).

ovary

pistil eggs

style

stigma

petals

Where is the stigma?

Click on the part of the flower that shows the stigma.

Nope This is a petal. This is used for

attracting insects and animals.

Uh Oh… This is a female part called the style.

This is where the pollen tube will be formed.

Oh no… This is a female part called the ovary.

Here is where the eggs are stored and what will change into the fruit that we eat.

Rats… This is the part of the ovary where the

eggs are stored.

Good Job! The stigma is on top of the style. It is

sticky so that the pollen grains will stick to it.

Review Click on the correct picture of the

MALE reproductive parts.

filament

pollen

anther

filament

anther

pollen

stamen

pollen

filamentanther

stamen

stamen

Oops… Check the order of the words…

Not Quite Check the order of the words…

Great!! You got it!

Click on the correct picture of the FEMALE reproductive parts

petalstigma

eggs

style

pistil

pistil eggs

style

stigma

petal

ovary ovary

eggs

style

stigma

pistil

ovary

petal

Tough Break Look closely at the arrows and the

words...you can do it.

You got it!! Well done!

Not exactly This is tricky… double check the word

order

Fertilization Pollen must join with an egg to produce a seed. This process is called

pollination, and is often helped by animals like bees, which fly from flower to flower collecting sweet nectar. As they visit flowers, they spread pollen around, leaving it on some stigmas. After a male's pollen grains have landed on the stigma during fertilization, pollen tubes develop within the style, burrowing down to the ovary, where the sperm fertilizes an egg cell. After fertilization, this develops into a seed in the ovary.

ovary

pollen tube

pollen grainstigma

What forms in the style during fertilization?

Pollen grain Pollen tubes Pollen allergies

Not quite Pollen grains are individual pollen

cells.

Bummer… Flowers don’t have allergies, as far as

I know.

Terrific!! Let’s move on to a summary…

Fertilization summary Once the pollen lands on the stigma,

the pollen grain burrows down the style by making a pollen tube until it reaches where the eggs are stored in the ovary. The pollen and egg join together to form a seed (baby plant). The ovary ripens and becomes the fruit that we eat.

SummaryMale Reproductive partsStamen- all the male partsPollen-male reproductive cell which makes a tube down the style during fertilization in order to join with the egg.Anther-where pollen is producedFilament-a tube that holds up the anther

Female Reproductive PartsPistil-all the female partsStyle-a tube that hold up the stigma; where a pollen tube is formedStigma-a sticky surface on the top of the style where pollen can collectOvary-where the eggs are storedEgg-female reproductive cell

The End

Back