KW HHB Unit 1 Metabolic Pathways

Metabolic pathways are integrated and controlled pathways of .....................-catalysed reactions within a cell.

• catalyst

• protein

• enzyme

• hormone

Metabolic pathways can have reversible steps, irreversible steps and ......................... routes

• alternative

• unique

• exothermic

• endothermic

Reactions within metabolic pathways can be .................

• exothermic or anabolic

• catabolic or degradation

• anabolic or synthesis

• anabolic or catabolic

What type of reactions build up large molecules from small molecules?

• Metabolic reactions

• Catabolic reactions

• Anabolic reactions

• Anatomic reactions

What type of reactions require energy?

• Metabolic reactions

• Catabolic reactions

• Anabolic reactions

• Anatomic reactions

What type of reactions break down large molecules into smaller molecules?

• Metabolic reactions

• Catabolic reactions

• Anabolic reactions

• Anatomic reactions

What type of reactions release energy?

• Metabolic reactions

• Catabolic reactions

• Anabolic reactions

• Anatomic reactions

Metabolic pathways are controlled by the presence or absence of particular ............................ and the regulation of the rate of reaction of key ............................

• hormones

• enzymes

• antibodies

• receptors

..................... fit occurs when the active site changes shape to better fit the substrate after the substrate binds.

• Proper

• Perfect

• Induced

• Forced

The substrate molecule(s) have a ................... affinity for the active site

• high

• low

• moderate