Unit 1. Living organisms

All living organisms consist of tiny units called...

Living organisms can be...

• unicellular

• unicellular or multicellular

• multicellular

• many different cells

A unicellular organism consists of...

• a single cell

• a tissue

• many different cells

• a plant cell

A multicellular organism consists of...

• a single cell

• animal cell

• bacteria

• multiple cells

Animal cells have:

• a nucleus, a cell wall, cytoplasm and vacuoles.

• a nucleus, a cell membrane, cytoplasm and chloroplasts.

• a nucleus, a cell membrane, cytoplasm and vacuoles.

• a nucleus, a cell membrane and cytoplasm.

Plant cells have:

• a nucleus, a cell membrane, a cell wall, cytoplasm, vacuoles and chloroplasts.

• a nucleus, a cell membrane, cytoplasm and vacuoles.

• a nucleus, a cell membrane and chloroplasts.

• a cell membrane, cytoplasm and vacuoles.

They contain chlorophyll and only plant cells have them:

• vacuoles

• cell membrane

• cytoplasm

• chloroplast

It controls all the functions of the cell:

• cell membrane

• nucleus

• cell wall

• cytoplasm

It controls what enters and leaves the cell:

• chloroplast

• chlorophyll

• cell membrane

• nucleus

Most chemical reactions take place here:

• vacuoles

• cytoplasm

• nucleus

• cell wall