Biochemical Reactions
What are chemical reactions?
a process that changes some chemical substances into others.
Why does an elephant have the lowest metabolic rates of any animal?
The metabolic rate, or rate of metabolism, has to do with the amount of energy the organism uses
What is the main purpose of biological catalyst?
to speed up biochemical reactions.
All life needs what?
h2o
What is the main ingredient of many solutions?
Water
What does a substance need to start a chemical substance?
product
Explain where all human energy comes from?
Food
True or false, enzymes can be used over and over again?
True
Where does most of the Earth’s water consist in?
Ocean
Below 7 on the pH scale is considered what?
Biochemical are defined as?
Chemical reactions that take place inside living things are
In an exothermic reaction, reactants produces what?
Products + Heat
How does enzymes help you function in your everyday life?
Digest food
What is the percentage of water that we can drink?
3%
Above 7 on the pH scale is considered what?
Bases
What is an example of a chemical reaction?
the burning of methane can be represented by the chemical equation
Endothermic reactions in organisms are?
anabolic reactions
A catalyst can be defined as?
is a chemical that speeds up chemical reactions
True or false, the human body is made up about 60% of water.
False
In what percentage is the Earth covered in water?
almost 75%
True or false, in a chemical reactions, the quantity of each element changes.
False
What does all chemical reactions need?
energy
Enzymes can be defined as?
enzymes are biological catalysts.
Why is water essential for human beings?
Water can dissolve many substances that organisms need, and it is necessary for many biochemical reactions
Why is pure water important to understand acids and bases?
Because it the neutral standard for the pH scale