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What's the difference between the 'lock and key' and 'induced fit' models for enzymes?

The lock and key hypothesis suggests that the enzyme has a fixed shape/structure and the substrate has to fit into this exactly for catalysis to occur. The induced fit hypothesis is different in that it s...

Answered by Harriet W. • Biology tutor

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What steps occur during glycolysis?

Glycolysis is a metabolic process that takes place in the cytoplasm of a cell and occurs in both aerobic and anaerobic respiration pathways. One six-carbon compound is converted into two three-day on mol...

Answered by Isabelle S. • Biology tutor

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Using Newton's law of universal gravitation, show that T^2 is proportional to r^3 (where T is the orbital period of a planet around a star, and r is the distance between them).

(Lets consider a simple planetary system composed of a planet orbiting a star. the gravitational force between the two is given by F=(GMm)/(r²). Assuming the planet also moves in a circular orb...

Answered by Karanvir S. • Physics tutor

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Interview question: Why should we give you an offer instead of another candidate; what separates you from the rest?

In answering this question, you will need to be careful, with the examiner looking forward to hearing your strengths, whilst also expecting you to be very careful in treading the line between arrogance an...

Answered by Yogi G. • Medical School Preparation tutor

2368 Views