Second Unit 3 SAC?

[Snorlax]

so enzymes only speed up reactions?
ei the  reaction would take place naturally the enzymes just make it happen quicker?

But enzymes are essential. They will take play naturally - but that would be useless, and we would die.
So to answer your question; yes, the reactions would still take place.

[Stick]

so enzymes only speed up reactions?
ei the  reaction would take place naturally the enzymes just make it happen quicker?

Again, be careful. If enzymes were not present in living organisms, the metabolic reactions would not occur at a rate which would sustain life.

[Smiley_]

Again, be careful. If enzymes were not present in living organisms, the metabolic reactions would not occur at a rate which would sustain life.

thanks

could you explain this a little further ?

[psyxwar]

thanks

could you explain this a little further ?

Well, think about it this way -- to sustain our lives, chemical reactions can't take millions of years to happen because by that point we'd be dead. Enzymes lower the activation energy for a reaction and by extension, speed it up so they can happen at a rate that is able to sustain our lives (eg. digestion is catalysed by enzymes)

[Smiley_]

Well, think about it this way -- to sustain our lives, chemical reactions can't take millions of years to happen because by that point we'd be dead. Enzymes lower the activation energy for a reaction and by extension, speed it up so they can happen at a rate that is able to sustain our lives (eg. digestion is catalysed by enzymes)

so enzymes dont make the reactions happen
they just speed them up!

[psyxwar]

so enzymes dont make the reactions happen
they just speed them up!

Yup, that's the job of a catalyst!

[Yacoubb]

so enzymes dont make the reactions happen
they just speed them up!

Yeah so enzymes decrease the activation energy required for that process to take place, and by doing so, increase the rate of the metabolic reaction in order so sustain life + maintain the effective functioning of an organism

[Stick]

thanks

could you explain this a little further ?

Remember, organisms cannot increase the rate of metabolic reactions by increasing temperature, concentration or surface area to volume ratio.

[Bad Student]

Remember, organisms cannot increase the rate of metabolic reactions by increasing temperature, concentration or surface area to volume ratio.

Organisms do have some degree of control over the concentration of certain substances. For example, the compartments in mitochondria can control the amount of enzymes needed in aerobic respiration.

[Smiley_]

 

[Smiley_]

worked out my question
 but is amylase produced in the mouth and  pancreas?

[Yacoubb]

worked out my question
 but is amylase produced in the mouth and  pancreas?

Wouldn't anylase be synthesised in salivary gland cells? Because the amylase enzyme is found in saliva..

[Scooby]

Remember, organisms cannot increase the rate of metabolic reactions by increasing temperature, concentration or surface area to volume ratio.

I wouldn't be so sure about that 

[Scooby]

Wouldn't anylase be synthesised in salivary gland cells? Because the amylase enzyme is found in saliva..

Yup, amylase is produced by the salivary glands and the pancreas

[Snorlax]

I had 4 kinds of liver, control, grounded, diced, and boiled.

and tested which was most effective.

covers surface area to volume ratios
denaturing of enzymes

is the grounded liver and the liver cube representing SA:V?