Mention four characteristics of enzymes.?

Answer 1

Enzymes are substance specific. That means that enzymes only act on their target substances, so an enzyme that works on proteins would not perform a chemical reaction when it is placed in lipids.

An enzyme is a molecule that catalyzes, or speeds up, a chemical reaction. It does this by lowering the activation energy necessary to begin the reaction.

Enzymes are essential to sustain life because most chemical reactions in biological cells would occur too slowly, or would lead to different products without enzymes. The deletion of an enzyme would cause severe disease.

Enzyme activity is affected by many external factors, such as temperature, pH, and amount of substrate.

Answer 2

Characteristics Of Enzymes

Answer 3

Four characteristics of enzymes:

1. Enzymes speed up reactions but they never make an impossible reaction possible.

2. Enzymes are not used up in the process of the reaction.

3. The same enzyme usually works for the forward and reverse reaction.

4. In general, enzymes are specific in regard to the substrates with which they interact.

Answer 4

ENZYMES

1. Enzymes are nothing but proteins with great catalytic power

2. often highly specific for substrate or reaction type
Urease - hydrolyzes urea and Subtilisin - hydrolyzes all peptide bonds

3. Catalytic power may be regulated by,
feedback inhibition
allosterism
covalent modification
protein-protein interaction
zymogen activation by proteolysis
and

4. May be involved in energy transformation
photosynthesis
chemical energy: oxidative phosphorylation --> ATP
vision
muscular contraction
bioluminescence - luciferase

Answer 5

I've got more than four,but heres what I write when the question crops up:

Enzymes are specific, biological catalysts which are protein in nature. They speed up the rate of a chemical reaction without themselves being changed at the end of it. They are affected by changes in pH value and temperature and are required in minute amounts.

Answer 6

1. they only bind to specific substrates, the lock and key model.
2. They are very specific to temp, concentration etc.
3. all enzymes are proteins.
4. are bio catalysts,released in trace amounts.

Answer 7

It's a take-home exam question or part of your homework?