UNIT 3: A PLANET FULL OF LIFE

A living thing is an organism that is able to perform three vital functions: nutrition, interaction and reproduction.

All living things are made of cells. Nutrition:

Autotrophs: They produce their own food.Heterotrophs: They eat another

organisms. Reproduction:

Asexual: Produces identical copies of itself

Sexual: Two living things join and provide gametes.

TYPES OF CELLS Prokaryotic cells: They don’t have a

nucleus. Eukaryotic cells

Animal cell Plant Cell

THE FIVE KINGDOMS

Monera kingdom: Ex: Bacterias Protoctist kingdom: Protozoa and Algae. Fungi kingdom: Ex: Mould and Mushrooms. Plant kingdom: Ex: Oak tree Animal kingdom: Ex: Dog

ACTIVITIES

1. The following organisms have a sexual or asexual reproduction? A bacterium that produces two identical bacteria. Fish that lay eggs in the water.

2. Mould grows and feeds on food leftovers. Do you think it is autotroph or heterotroph?

Explain your answer.

3.Draw in your notebook a prokaryotic cell and eukaryotic cell. Label the elements in English and Spanish.

4. Match the words:An insect Prokaryotic cellAn oak tree Plant eukaryotic cellA bacteria Animal eukaryotic cell

5. Copy the table in your notebook and mark with a X what you can see in each type of cell. Prokaryotic

cellEukaryotic animal cell

Eukaryotic plant cell

Plasmatic membrane

Cellular wall

Nucleus

Chloroplasts

Vacuoles

Mitochondria

6. Look up in the Internet the scientific names of the following animals and write them in your notebook.

a) Squirrelb) Mousec) Rabbitd) Cate) Sparrowf) Lynxg) Bearh) Dog

1. Classify the following organism in the tables: tiger, deer, tetanus bacteria, mushroom, cholera bacteria, pine tree, rose, eagle, moss, paramecium, oak, camel, Mouse.

Monera Protists Fungi Plant Animal

Autotrophic nutrition Heterotrophic nutrition