Question

1. where can you find enzymes in a bacteria cell?
2. what is the purpose of an enzyme?
3. what type of biomolecule is an enzyme?
4. what does the shape of an enzyme allow it to do?
5. what is a catalyst? how do they work?
6. what are enzymes?
7. what must reactants do for a chemical reaction to take place?
8. what do enzymes provide?
9. what are the reactants of enzyme - catalyzed reactions called?
10. what affects enzymes?
11. why would it be beneficial for an organism to use less energy?

at any given moment, all of the work being done inside any cell is being done by enzymes. if you understand enzymes, you understand cells. a bacterium like e. coli has about 1,000 different types of enzymes floating around in the cytoplasm at any given time.
enzymes have extremely interesting properties that make them little chemical - reaction machines. the purpose of an enzyme in a cell is to allow the cell to carry out chemical reactions very quickly. these reactions allow the cell to build things or take things apart as needed. this is how a cell grows and reproduces. at the most basic level, a cell is really a little bag full of chemical reactions that are made possible by enzymes!
enzymes are made from amino acids, and they are proteins. when an enzyme is formed, it is made by stringing together between 100 and 1,000 amino acids in a very specific and unique order. the chain of amino acids then folds into a unique shape. that shape allows the enzyme to carry out specific chemical reactions -- an enzyme acts as a very efficient catalyst for a specific chemical reaction. the enzyme speeds that reaction up tremendously.
a catalyst is a substance that speeds up the rate of a chemical reaction. catalysts work by lowering the activation energy of a reaction. enzymes are special proteins that act as biological catalysts. enzymes speed up chemical reactions that take place in cells.
how do enzymes do their jobs? for a chemical reaction to take place, the reactants must collide with enough energy so that existing bonds will be broken, and new bonds will be formed. if the reactants do not have enough activation energy, they will be unchanged after the collision.
enzymes provide a site where reactants can be brought together to react. such a site reduces the energy needed for reaction. the reactants of enzyme - catalyzed reactions are known as substrates.
enzymes can be affected by any variable that influences a chemical reaction. enzymes, including those that help digest food, work best at certain ph values. many enzymes are affected by changes in temperature.

Explanation:

1. Cytoplasm.
2. Facilitate chemical reactions in cell.
3. Protein.
4. Catalyze specific reactions.
5. Speeds up reaction by lowering activation energy.
6. Protein - biological catalysts.
7. Collide with enough energy.
8. Reaction site for reactants.
9. Substrates.
10. pH, temperature etc.
11. Conserve energy for survival.

Answer:

1. Cytoplasm
2. Facilitate chemical reactions in cell
3. Protein
4. Catalyze specific reactions
5. Speeds up reaction by lowering activation energy
6. Protein - biological catalysts
7. Collide with enough energy
8. Reaction site for reactants
9. Substrates
10. pH, temperature etc.
11. Conserve energy for survival