Metabolic Reactions OpenSciEd

A metabolic pathway consists of ...

• a series of physical reactions

• a series of enzymes

• a series of chemical reactions

• a series of biological reactions

Tags

NGSS.HS-LS2-5

Two features of anabolic reaction sequences are...

• Breakdown of molecules & requires energy

• Breakdown of molecules & Releases energy

• builds up molecules & releases energy

• builds up molecules & requires energy

Two features of catabolic reaction sequences are...

• Breakdown of molecules & requires energy

• Breakdown of molecules & Releases energy

• builds up molecules & releases energy

• builds up molecules & requires energy

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

The diagram below shows a metabolic pathway that is controlled by end product inhibition. For Substance 4 to bring about end product inhibition, with which of the following would it interact?

• Substance 1

• Substance 3

• Enzyme 1

• Enzyme 3

The change in shape of the active site of an enzyme, when its substrate binds, is called...

• specificity

• induced fit

• activation

• inhibition

This is high between active site and substrate, and low between active site and product.

• orientation

• lowers activation energy

• induced fit

• affinity

Which type of inhibition involves an inhibitor with a similar shape to the substrate?

• End product

• Competitive

• Non-competitive

• Lead

Which type of inhibition can be overcome by increasing substrate concentration

• End product

• competitive

• non-competitive

• No type

Which type of inhibition changes the shape of the active site?

• End product

• Competitive

• Non-competitive

• Alternative pathway

What is it that controls a metabolic pathway?

• enzymes

• chemicals

• intermediates

• energy