1.6 - Metabolic Pathways

A metabolic pathway consists of ...

• a series of random reactions

• a series of enzymes without reactions

• a series of enzyme-controlled chemical reactions

• a series of biological reactions without enzymes

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

Tags

NGSS.HS-LS1-6

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-LS2-5

NGSS.HS-LS1-7

Type of reaction that requires energy.

• anabolic

• catabolic

When an intermediate compound in a reaction can be converted back into the intermediate it was produced from.

• End product Inhibition

• Negative feedback control

• Alternative route

• A reversible step

Which type of inhibition involves an early enzyme in a metabolic pathway being inhibited?

• End product

• competitive

• non-competitive

• No type

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

When steps in a metabolic pathway are bypassed (think fast track) but still reach the same end product.

• End product Inhibition

• Negative feedback control

• Alternative route

• A reversible step

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

• activation energy

• induced fit

• affinity