Enzyme activity

A detailed Summary of Enzyme activity


To investigate enzyme activity by testing for changes in a starch solution when the enzyme amylase is added and how this reaction is affected by heat, pH, ratios etc.

Enzymes are biological catalysts produced by living cells. Like all catalysts, they greatly speed up all the processes that go on inside living organisms. A single cell may contain 100,000 different enzymes, which are needed to take part in its 1,000 to 2,000 chemical reactions. For example digestive enzymes break down food into simpler substances. Many enzymes work in the opposite way, linking simple substances together to form larger, more complex ones needed to build up tissues. Enzymes themselves are made of protein and each one has a differently shaped active site, where the reaction takes place.

It is this shape which dedicates it to a particular chemical reaction.

This can be described as a lock and key system, whereby the two substances to be linked, the keys, fit into the enzyme, the lock. Only the correctly shaped substances can fit into the lock.


2) To the first, using a pipette, add hydrochloric acid, vinegar to the second, nothing to the third, sodium bicarbonate to the fourth and to the fifth add caustic soda, until the test tubes are of pH 1, 4, 7, 10, 14(test with litmus paper).

The testing will be done at room temperature in test tubes of the same size at an amylase to starch ratio of 1:5

1.One substance and 2.Substance fits into enzyme 3.Two separate an enzyme and is broken down substances are released

In an experiment such as this there are many variables which will effect the results.



Some common words found in the essay are:
Enzymes Enzymes, Fair Testing, Pipette Measuring, Activity Aim, active site, enzyme activity, test tubes, Equipment Test, ph enzyme, starch solution, change temperature, mean result, reaction takes, stop clock, variables constant,

Approximate Word count = 741
Approximate Pages = 3 (250 words per page double spaced)

Category: Miscellaneous

join now Save Paper

Related Essays

  • Enzyme Activity Lab Enzyme Activity Lab Abstract In the investigation, a catalase and an enzyme whose occurrence is widespread in cells, particularly in liver cells was used. ... 982 words
  • Enzyme activity Enzyme Activity in the Liver Lab 6 Jenniffer DeSimone Monday Lab Lab Performed: 11/6/00 Lab Submitted: 11/13/00 Introduction: Within each of our body cells ... 333 words
  • Catalyst Purpose: The purpose of this project is to find out the effect of the enzyme activity by looking at enzyme concentration, substrate concentration, and the ... 530 words
  • Enzymes ... We will test temperatures ranging from 4C to 48C to find out if extreme temperatures either increase or decrease enzyme activity. ... 1241 words
  • Enzymes 2 ... Another factor is allosteric regulation. Molecules that inhibit enzyme activity may bind to an allosteric site, a receptor site separate from the active site. ... 607 words

Professional Essays

  • Poultry Feed ... A diet containing 600 kcal of fat decreased lipogenesis and malic enzyme activity in birds fed 190 g CP/kg protein but not birds fed 124g CP/kg this required ... 779 words
  • Enzymes Function ... These sites can regulate the enzymeamp39s activity because by changing the configuration of the active site or the substrate binding site, they can increase or ... 969 words
  • LeschNyhan Syndrome ... Mutation of the gene leads to an absence of enzyme activity which, in turn, leads to markedly elevated blood uric acid levels hyperuricemia, causing urinary ... 1147 words
  • Genetic Basis ampamp Biochemical Components of LeschNyhan Syndrome ... Mutation of the gene leads to an absence of enzyme activity which, in turn, leads to markedly elevated blood uric acid levels hyperuricemia, causing urinary ... 1147 words
  • Theories of Aging ... theory of aging. Researchers have found that, in many cases, enzyme activity actually decreases with aging. In addition, studies ... 1562 words
  • Theories of Aging ... theory of aging. Researchers have found that, in many cases, enzyme activity actually decreases with aging. In addition, studies ... 1578 words


Saved Paper

Save your papers so you can locate them quickly!

Newest Essays

Testimonials

  • "Thank You So Much!!! You have saved me once again!!!"
    Jack M.
  • "With so many papers to chose from, I was able to get ideas to help me with all of my classes. Thank You!"
    Brian P.
  • "I've used this site for the last 3 years to help me come up with ideas for my papers."
    Sara J.
  • "I use this site every week to help me write my own papers!"
    Rachel W.
  • "I love this site!!!"
    Marie N.
Home Join Now Support
Acceptable Use Policy About us FAQ
All papers are for research and reference purposes only!
© 2002-2009 DirectEssays.com. All Rights Reserved.