Reproduction

ReproductionS1 Science

Revision

The Course

This course is made up of three sections:

Cells – the structure of plant and animal cells

Human reproduction

Plant reproduction

The test will cover all three sections.

Part 1: Cells

You’ll have to know:The parts of an animal cell

The parts of a plant cell

The function of each part

You should be able to:

The animal cell

Nucleus Cell Membrane

Cytoplasm

The plant cell

Cell Membrane

Vacuole

Cell Wall

Nucleus

Chloroplast

Cytoplasm

Functions of the cell parts

Cell part Function

Cell wall

Cell membrane

Vacuole

Nucleus

Cytoplasm

Chloroplasts

Maintains shape of cell

Allows substances to enter and leave the cell.

Contains cell sap and water

Controls what happens in the cell.

Is the site of cell reactions

Contains green chlorophyll for making food

Groups of cells

Groups of cells that do the same job are called _ _ _ _ _ _ _

Take five minutes to do the revision exercise on cells. If you’ve done it already, learn the parts and their functions!

t i s s u e s

Human Reproduction

You’ll have to know:How to label the parts of the male and female reproductive organs

What the different parts do in these systems

What happens at fertilisation

How to label parts of the foetus and the uterus during pregnancy

What the different parts do.

Human Reproduction continued

The female reproductive system

oviduct

ovary

uterusvagina

Carries the ovum to the uterus

Makes the ova

Will contain the growing embryo

Receives sperm from the penis

The male reproductive system

sperm tube

Carries the sperm to the penis

penis

testes

Creates the sperm

Delivers sperm to the vagina

Fertilisation

Fertilisation occurs in the _ _ _ _ _ _ _ when the _ _ _ _ _ and the _ _ _ _ meet.

The fertilised ovum is called a _ _ _ _ _ _.

As it travels to the uterus, it continues to divide until it’s a _ _ _ _ of _ _ _ _ _ called an _ _ _ _ _ _.

o v i d u c t

s p e r m o v u m

z y g o t e

b a l l c e l l se m b r y o

Pregnancy

Uterus wall

Placenta

Umbilical cord

Amnion

Protects the embryo

Joins the embryo to the placenta

Allows food and oxygen to pass to the embryo

Contains the embryo

Human reproduction

Take ten minutes to complete the revision exercises in your workbook. If you don’t finish them you can do them at home.

Plant reproductionYou’ll have to know:

How to label the parts of a flower

What the functions of the parts are

A bit about wind and insect pollination

Fertilisation in plants

How seeds are dispersed.

You should be able to:

Parts of a flower

stigma

style

petalanther

ovary

The functions of the parts

Part Function

stigma

style

ovary

petal

anther

Receives the pollen

Positions the stigma

Creates the ovules

Attracts insects

Creates the pollen

PollinationThere are two types of pollination: _ _ _ _ and _ _ _ _ _ _.Insect pollinated plants have _ _ _ _ _ _ _ _ coloured petals and a sweet smell. Their stigma is _ _ _ _ _ and the anthers are _ _ _ _ _ _ the flower.Wind pollinated plants have small, _ _ _ _ petals and _ _ _ _ _ _ _ _ stigmas. They have no scent and the anthers hang _ _ _ _ _ _ _ the flower.

w i n d i n s e c t

b r i g h t l ys m a l l

i n s i d e

d u l l f e a t h e r y

o u t s i d e

Fertilisation

The male sex cell in plants is the _ _ _ _ _ _ and the female sex cell is the _ _ _ _ _.

When the pollen lands on the stigma it forms a _ _ _ _ _ _ _ _ _ _ to take the pollen to the ovary.

The fertilised ovule or _ _ _ _ _ _ becomes the _ _ _ _. The ovary becomes a _ _ _ _ _.

p o l l e n

o v u l e

p o l l e n t u b e

z y g o t es e e d

f r u i t

Seed dispersal

Seed Dispersed by? Why?

Animals (internal)

Fruit is eaten by animals.

Animals (external)

Hooks catch onto fur.

Seed catches the wind.

Wind.