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Formation of an enzyme-substrate complex increases the rate of reaction, explain how.

The formation of an enzyme substrate complex reduces the activation energy required for the reaction to take place by bending bonds. Without an enzyme, very few reactions would have the energy to take place.
Answered by • Biology tutor
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Describe how blood moves around the heart

De-oxygenated blood enters the right atrium from the Vena Cava, it then passes into the right ventricle due to gravity and the contraction of the walls of the right atrium. The walls of the right ventricle t...
IL
Answered by Isobel L. • Biology tutor
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State and explain the principles of the Polymerase Chain Reaction (PCR)

Firstly, PCR is used to amplify DNA so that it can be used in analysis. It is particularly useful in processes like forensic science to identify DNA samples left behind at a crime scene. The process begins w...
VP
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What is the role of the vacuole in the plant cell?

Vacuole is a membrane-bounded structure, which is compartmentalised. It stores both organic as well as inorganic molecules along with water to support the organelles. In case of osmosis it can release the wa...
MH
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Explain the functions of the different cell structures in an animal cell

Nucleus - contains the DNA allowing it to control the cells activities. It is the site of transcription where DNA is made into RNA. Ribosomes - the site of protein synthesis where translation occurs. Mitocho...
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Answered by William M. • Biology tutor
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