IGCSE Biology

What deficiency disease can be caused by CALCIUM deficiency?

• Night blindness

• Scurvy

• Osteoporosis

• Rickets

What deficiency disease can be caused by IRON deficiency?

• Anaemia

• Scurvy

• Osteoporosis

• Rickets

Select the TWO organs that make up the CNS (Central Nervous System).

• brain

• heart

• lungs

• spinal cord

• nose

The diagram shows water and sugar molecules on either side of a partially permeable membrane.

Explain what will happen during osmosis.

What is meant by a 'Balanced Diet'?

Select all of the biological molecules that make up our body.

• proteins

• alkanes

• carbohydrates

• nucleic acids

• lipids