Why do we Respire?

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What is energy?
The ability to do work
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What is ATP?
A phosphorylated nucleotide; Adenosine Triphosphate
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What is meant by the term 'anabolic'?
Biochemical reactions that build large molecules from smaller ones
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What is meant by the term 'catabolic'?
Biochemical reactions that break down large molecules into smaller molecules through hydrolysis
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What are the two forms energy exists as?
Kinetic and Potential (stored)
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What are the seven metabolic processes that require energy?
Active Transport, Secretion, Endocytosis, Synthesis of large molecules from smaller ones, Replication of DNA and synthesis of organelles, Movement, Activation of Chemicals
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How much energy is released by the hydrolysis of ATP to ADP and Pi?
+30.6 kJ energy per mol
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How much energy is released by the hydrolysis of AMP to Adenosine and Pi?
+14.2 kJ energy per mol
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What are the stages of the ATP cycle?
ATP is hydrolysed to created ADP + Pi, ADP +Pi is condensed to create ATP (and thus the cycle begins again)
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What happens in the hydrolysis of ATP to ADP + Pi?
Energy is released for use by cells to do work
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What happens in the condensation of ADP + Pi to ATP?
Energy is released from the organic substrate during respiration
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If you were to draw ATP, what key components would you draw
3 phosphate groups (circles) attached to ribose (pentagonal) attached to Adenine (hexagon and pentagon)
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Card 2

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What is ATP?

Back

A phosphorylated nucleotide; Adenosine Triphosphate

Card 3

Front

What is meant by the term 'anabolic'?

Back

Preview of the front of card 3

Card 4

Front

What is meant by the term 'catabolic'?

Back

Preview of the front of card 4

Card 5

Front

What are the two forms energy exists as?

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