Cells 1AB

Cells are

• the building blocks of life

• the basic units of matter

• the basic units of all living things

• the basic units of non living things

The types of cells are

• prokaryotic and eukaryotic

• big and small

• round and square

• living and non living

This is a

• small cell

• eukaryotic cell

• prokaryotic cell

• atomic unit

This is

• a prokaryotic cell

• an eukaryotic cell

• an atom

• a bacterium cell

Prokaryotic cells have these characteristics

• the nucleus is enclosed by a membrane

• there are no organelles

• the nucleus is not well defined

• they are quite simple and primitive

Eukaryotic cells have these characteristics

• the nucleus is enclosed by a membrane

• there are many organelles in the cytoplasm

• they are square

• they are more complex than prokaryotic cells

The nucleus is

• the control centre of the cell

• an organelle

• in the centre of the cell

• a membrane

Mitochondria

• make proteins

• protect the nucleus

• contain DNA

• turn nutrients into energy

The nucleus

• produces energy

• contains genetic material

• transports substances

• consumes proteins

The cell membrane

• surrounds the organelles

• keep some substances in and others out of the cell

• surrounds the cell

• does not permit exchange