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Explain the characteristics of enzymes and the lock and key theory of enzyme action. Explain the role of enzymes in catabolic and anabolic reactions.

1) enzymes are biological catalysts that will speed up reactions by reducing activation energy for the reaction. 2) Lock and key theory concerns how the enzyme (lock) only forms a reactive complex with a spe...
JB
Answered by James B. • Biology tutor
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Outline the lock and key mechanism of enzyme-controlled reactions

Enzymes are proteins that catalyse specific biological reactions in the body. These proteins have a specific 3D structure known as a teritary structure, with a specialised domain known as an 'active site' th...
MJ
Answered by Michael J. • Biology tutor
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What is the difference between Areobic and Anaerobic Respriation

Areobic Respiration requires oxygen to release energy, producing water and carbondioxide as waste products according to equation belowC6H1206 + 6O2 = 6CO2 + 6H20Areobic respriation occurs in the mitochondria...
VE
Answered by Victoria E. • Biology tutor
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Describe the reflex arc.

A stimulus (for example a pin) stimulates the receptor which causes a nerve impulse in the sensory neuron. The impulse travels to a synapse in the spinal cord, where chemicals diffuse across the gap in the s...
SS
Answered by Sophie S. • Biology tutor
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What is a metabolic rate?

The rate of chemical reactions within the body.
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Answered by Sophie S. • Biology tutor
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