Unit 1

•The organisation of living things

Table of contents

• What do living things do ?• What are living things made up of ?• How are animals organised ?• How are plants organised ?• What systems do living things have ?

What do living things do ?

All living things carry out the basic life processes of : InteractionNutritionReproduction

Interaction

• All living things detect information in their enviroment

Nutrition

• All living things take essential nutrients from their environment

Reproduction

• Living things can create new members of their own species.

What are living things made up of ?

• All living things are made up of :• Cells

Animal cell

Nucleus

• The nucleus controls everything that happens inside the cell

Membrane

• The membrane surrounds and protects the cell.

• The nucleus and cytoplasm are found inside the membrane

Organells

• In cytoplasm , we fin special organells that carry out different life processes.

Cytoplasm

• Cytoplasm is a thick clear liquid protected by the membrane.

Plant cell

Organelles

• In the cytoplasm of plant cell , there are special organelles called chloroplasts.

Nucleus

• Controls everything that happens inside the cell.

Membrane

• The membrane surrounds and proctects the cell.

Cell wall

• Plants cell have a rigid cell wall around the membrane.

Vacuole

• Plant cells have a vacuole which is like a bag.• Food and water are stored in the vacuole.

Unecellular and multicellular organisms

• Some living things, such as bacteria or yeast, are made up of only one cell.

• Other living things , such as trees or butterflies have many cells

How are animals organised ?

• If we put a lot of cells toghether we form tissue

• If we put a lot of tissue toghether we form organs

• If we put toghether a ot f organs we form a system

Type of cells:

• Red blood cells

• Nerve cells

• Reproductive cells

How are plants organised ?

• If we put a lot of cells toghether we form tissue

• If we put a lot of tissue toghether we form organs

• If we put toghether a ot f organs we form a system

The plants have:

• Roots: its the part that absorbs water and nutrients from the soil

• Stem : its the part that supports the plant and transports water, minerals and sap.

What systems do living things have ?

• Nutrition :we use it to transform the substances that we need to live and grow

• Interaction: we use it to detect information about the world and us to react to the information

• Reproduction: we use it to reproduce by having children.

Autoras:

Lucia rimonte

Daira donoso

FIN!