Radiation on the body

Select the THREE things that could happen to cells after they have been exposed to radaition

• They could repair themselves.

• They could become damaged, and possibly start to divide more rapidly leading to cancer.

• They could die.

• They could stop dividing and become unable to reproduce.

• Their cell membranes may become less permeable so that less diffusion happens.

Select the correct option.

• Younger people are at greater risk from radiation because their cells are dividing more rapidly.

• Older people are at greater risk from radiation because their cells are dividing more rapidly.

• Younger people are at less risk from radiation because their cells are dividing more rapidly.

• Older people are at less risk from radiation because their cells are dividing more rapidly.

Radiation is safer when..... (SELECT TWO)

• All of the body is exposed

• Only a part of the body is exposed

• A powerful radiation source is used.

• A less pwerful radiation source is used

Passing 50cm away from a ______ source is very safe because 50cm is greater than its range in air.

• alpha

• beta

• gamma

Passing 50cm away from a ______ source is moderately safe because _____ radiation is so penetrating it will largely pass straight through the body.

• alpha

• beta

• gamma

Consuming a ______ source is moderately safe because _____ radiation is so penetrating it will largely pass straight through the body.

• alpha

• beta

• gamma

Atoms are ____________________ by nuclear radiation

• ionised

• mutated

• made to reproduce uncontrollably

Atoms are ____________________ by nuclear radiation

• ionised

• mutated

• made to reproduce uncontrollably

DNA is ____________________ by nuclear radiation

• ionised

• mutated

• made to reproduce uncontrollably

Cells are ____________________ by nuclear radiation

• ionised

• mutated

• made to reproduce uncontrollably