Put these steps in the mechanism of chymotrypsin catalysis in order from first to last. Note that your textbook may not break out each of these steps individually, but all steps should be ordered. (There will be eight steps.) A. His 57 catalyzes removal of H from Ser 195 hydroxyl. B. His 57 donates H to N of sissile peptide bond, tetrahedral intermediate decomposes. C. The portion (N-terminal end) of the original substrate with the new carboxylate terminus diffuses away. D. Water donates H to His 57. E. Resulting OH attacks carbonyl of remaining substrate. F. His 57 donates H to Ser 195 O, leading to collapse of thtrahedral intermediate. G. the portion (the C-terminal end) of original substrate with the new amino terminus diffuses away. H. Ser 195's nucleophilic O attacks carbonyl C of substrate.

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure  

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.

you gotta add the following molecules so we can give u an answer

explanation: