Biology Chapter 5 Flashcards
___energy from food is converted to__energy
Chemical; Kinetic
What is Conservation of energy?
A principle that explains it is not possible to destroy or create energy. It can only be converted from one form to another
What is Kinetic energy?
The energy of motion
What is Potential energy?
The energy of an object has because of its location or structure
What is heat?
- a type of kinetic energy contained in the random motion of atoms and molecules
- all energy transformations generate heat
- it is the most chaotic and disordered form.
What is entropy?
A measurement of the amount of disorder of randomness in a system. Every time energy is converted, entropy increases
What is chemical energy?
The potential energy that molecules of food, gasoline and other fuels have.
What is especially rich in chemical energy?
Carbohydrates, fats, and gasoline
What is cellular respiration?
- the combustion of fuel in cells
- a more gradual and efficient “burning”
- an energy of releasing chemical breakdown of food molecules and the the storage of that energy in a form the cell can use to perform work
How much do you convert of food to useful work?
34%
The rest of the energy generates body heat
A calorie is the amount of energy that can raise the temperature of 1 gram of water by 1 C T/F?
True
