grade 9 quiz

pepsin is an enzyme that acts on

• proteins

• carbohydrates

• lipids

• starch

an enzyme is destroyed at ...... degrees

• 20

• 0

• 30

• 60

by the action of amylase the starch is transformed into

• maltose

• glucose

• amino acids

• all answers are incorrect

digestion of lipids gives amino acids

• true

• false

all carbohydrates are identified by Fehling's test

• true

• false

chewing food is considered to be

• mechanical digestion

• chemical digestion

in which part of the digestive system most of the chemical digestion occur

• stomach

• mouth

• large intestine

• small intestine

Ph 1 is considered to be

• basic

• acidic

• neutral

emulsification of lipids is considered to be part of

• mechanical digestion

• chemical digestion

the name of the juice secreted in the mouth is

• gastric juice

• pancreatic juice

• saliva

• intestinal juice