Investigating Enzyme Function

Investigating Enzyme Function

How does pH affect enzymes?

Multiple Choice

Which solution would you use to test for lipids

• Biuret

• Ethanol

• Iodine

• Benedict

Multiple Choice

Where are nutrient absorbed in the digestive system.

• stomach

• pancreas

• villi (small intestine)

• large intestine

Multiple Choice

pH scale measures....

• temperature

• acidity and alkalinity

Multiple Choice

definition for a catalyst is?

• The substance an enzyme acts upon

• A biological catalyst that speed up reactions

• The process that describes making something new

• Something that speeds up a reaction

Multiple Choice

definition for an enzyme is?

• The substance an enzyme acts upon

• A biological catalyst that speed up reactions

• The process that describes making something new

• Something that speeds up a reaction

Multiple Choice

definition for the active site is?

• The substance an enzyme acts upon

• the region of the enzyme where the reaction takes place

• The process that describes making something new

• Something that speeds up a reaction

Multiple Choice

definition for a substrate is?

• The substance an enzyme acts upon

• the region of the enzyme where the reaction takes place

• The process that describes making something new

• Describes how the shape of the

  substrate fits the shape of the enzyme

Multiple Choice

definition for the lock and key is?

• The substance an enzyme acts upon

• the region of the enzyme where the reaction takes place

• The process that describes making something new

• Describes how the shape of the

  substrate fits the shape of the enzyme

Multiple Choice

Amylase break down what food group?

• protein

• lipids

• carbohydrates

Multiple Choice

Pepsin break down what food group?

• protein

• lipids

• carbohydrates

Multiple Choice

Lipids break down what food group?

• protein

• lipids

• carbohydrates

Multiple Choice

Proteins are broken down into....

• amino acids

• fatty acid and glycerol

• glucose.

Multiple Choice

Lipids are broken down into....

• amino acids

• fatty acid and glycerol

• glucose.

Multiple Choice

Carbohydrates are broken down into....

• amino acids

• fatty acid and glycerol

• glucose.

Open Ended

Name one factor which will affect enzyme function.

Multiple Choice

Optimal conditions is....

• the condition in which enzyme activity is at lowest.

• the condition in which enzyme activity is at its highest.

Multiple Choice

What is the optimal pH for amylase?

• 4

• 6

• 7

• 9

Multiple Choice

Which enzyme has the greatest optimal range?

• amylase

• lipase (stomach)

• pepsin

• lipase (prancreas)

Multiple Choice

Suggest where in the body pepsin will be found and used?

• Stomach

• Mouth

• Small intestines

Multiple Choice

Which solution is used to test for starch?

• Benedict

• Ethanol

• Iodine

• Biuret

Multiple Choice

If starch is present Iodine turns?

• Green

• Blue/Black

• Orange

• Red

Multiple Choice

Amylase is an enzyme used in the mouth which pH will it work best at?

• 5

• 6

• 7

• 8

Multiple Choice

What will happen to an enzyme that has a pH of 8 if it placed in an acidic solution?

• it become inactive

• it will increase enzyme activty

• it will denature

• it will fly away

Multiple Choice

When an enzyme denatures it...

• slow down it activity

• speeds up it activity

• its active site changes shape

• it will fly away