2.5 Specialised Animal Cells

What is the function of red blood cells?

• Fight infections

• Produce energy

• Digest food

• Carry oxygen around the body

Organisms made up of more than one cell and often millions or even billions of cells.

• Single-celled organisms.

• Multicellular organisms.

The cells in a multicellular organism are not all the same.

• True.

• False.

The structure of a specialised cell is adapted to carry out .................................................... in the body.

• a particular function (job)

• many functions (jobs)

Specialised cells have features which are not related to their functions in a multicellular organism.

• True.

• False.

More than half the cells in your body are red blood cells.

• True.

• False.

What gives red blood cells their red color?

• Haemoglobin

• Chlorophyll

• Melanin

• Keratin

Our blood is a ....................................liquid called plasma.

• red

• yellow

• white

Most of the cells in the blood are ........................................... cells.

• nerve

• white blood

• red blood

• ciliated

Living things are sensitive, which means they respond to their surroundings because of the ...................... cells.

• white blood

• red blood

• nerve

• ciliated