Introduction to Metabolism

What are catabolic pathways

• release molecules to break down complex energies into simpler energies

• release enery to break down complex molecules into simpler molecules

• The synthesis of protein amino acids

• consume energy to build complex molecules from simpler ones

Which of the following is an example of catabolic pathways?

• Cellular respiration

• Construction of Maltose

• Glucose + Glucose ->

• H2O + H2O - > H4O2

Which of the following is the BEST explanation of the first law of thermodynamics

• Mass can neither be created nore destroyed

• Density is created and destroyed

• Energy is conserved and can be transformed and transferred

• Energy canot be created or destroyed

Which of the following is the BEST explanation of the second law of thermodynamics?

• Every energy transfer is lost as heat

• Every energy transfer is lost as entropy

• Every energy transfer increase entropy of the universe

• Entropy is the disorder within the universe

What does it mean to be spontaneous?

• To act crazy

• To respond to an external stimuli

• To respond to an internal stimuli

• To act with freedom of influence

What are the three main kinds of work done in a cell?

(a)  

Which of the following is the structure of ATP?

• 
• 
• 
• 

Is the graph endergonic or exergonic?

• endergonic

• exergonic

Is this exergonic or endergonic?

• exergonic

• endergonic

Which of the followiing BEST describe activation energy?

• Energy needed to activate a circuit

• Energy needed to activate a hormone

• The required enzymic actvity which yields the greatest product

• Minimum energy needed to create a product