Digestive System and Enzymes

Enzymes

• speed up chemical reactions

• slow down chemical reactions

• do nothing to a chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How does an enzymes shape relate to its function?

• the shape of the enzyme has no relation to its function

• the enzyme is shaped specially for certain substrates to perform a specific reaction

• the enzyme shape acts as a receptor to certain products

• the enzyme shape can fit into specific substrates to cease a reaction

Each enzyme only has 1 substrate that will fit its active site.  What is this called?

• reusablility
• denaturation
• specificity
• fragility

In the diagram, what is letter A? 

• product
• substrate
• enzyme-substrate complex
• active site

What macromolecule would be broken down by these structures?

• carbs
• lipids
• proteins
• nucleic acids

Tags

NGSS.MS-LS1-7

Name this structure

• spleen
• gall bladder
• pancreas
• jejunum

Tags

NGSS.MS-LS1-7

What  does not occur here?

• mechanical digestion
• chemical digestion
• absorption
• all occur here

What best describes what occurs here

• nutrients are absorbed
• water and salts are reclaimed
• bacteria assist with vitamin absorbtion
  
• most mechanical digestion

Tags

NGSS.MS-LS1-7

Mechanical digestion does NOT occur in the.....

• mouth
• stomach
• small intestine
• large intestine

What macromolecule is broken down by this structure?

• carbs
• fats
• proteins
• nucleic acids

Tags

NGSS.MS-LS1-7