IGCSE Enzymes and Digestion Revision

Define the term ingestion

• The movement of nutrients from the digestive system into the blood

• The removal of undigested food from the body

• The breaking down of large insoluble molecules into small soluble molecules

• The taking in of nutrients.

Tags

NGSS.MS-LS1-3

Define the term digestion

• The movement of nutrients from the digestive system into the blood

• The removal of undigested food from the body

• The breaking down of large insoluble molecules into small soluble molecules

• The taking in of nutrients.

Tags

NGSS.MS-LS1-3

Define the term egestion

• The movement of nutrients from the digestive system into the blood

• The removal of undigested food from the body

• The breaking down of large insoluble molecules into small soluble molecules

• The taking in of nutrients.

Define the term absorption

• The movement of nutrients from the digestive system into the blood

• The removal of undigested food from the body

• The breaking down of large insoluble molecules into small soluble molecules

• The taking in of nutrients.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What gland produces amylase?

• Liver

• Gall bladder

• Salivary gland

• stomach

Define the term mechanical digestion

• The breaking down of large food molecules by the use of enzymes.

• The physical break down of food done by the teeth or the muscles in the stomach.

Define the term chemical digestion

• The breaking down of large food molecules by the use of enzymes.

• The physical break down of food done by the teeth or the muscles in the stomach.

Which term describes the movement of food down the oesophagus by a wave of muscular contraction

• Diffusion

• Peristalsis

• Chyme

• Bolus

What word is used to describe food which has been mixed with saliva.

• Chyme

• Bolus

• Churning

• Mucus

What is the pH in the stomach?

• pH 1-2

• pH 3-4

• pH 11-12

• ph 13-14