Cellular Respiration Brain Pop
Pre-Knowledge:
We breathe in ___________________________. The food we eat is considered ______________________.
This food contains ___________________________ which is another word for sugar.
BrainPop
The body system that is responsible for breaking down food is the ________________________
_______________________. Glucose, along with _______________________________ from your lungs is
delivered to your cells through your bloodstream.
Inside tiny cellular structures called ___________________________ these substances undergo a chemical
reaction called _________________________________. When the reaction is complete, 3 things are left over:
1. An energy packed molecule called ____________.
2. _____________________
3. And waste gas called _______________________________.
Carbon dioxide is a harmful waste gas that your body needs to get rid of. If too much CO2 builds up in your
blood, you’d _____________________.
The energy in __________________ allows cells to synthesize (make/produce) complex organic molecules like
DNA, RNA and proteins.
Cellular respiration ___is / is not________ just for humans. You find it happening inside the cells of _______
living animals, and even ___________________.
When your body does not have enough oxygen for cellular respiration, your cells go with a backup plan called
_________________________.
Here, glucose is processed with ___________________________________ instead of oxygen. It doesn’t produce
as much energy as aerobic respiration. This process, in which something other than oxygen is used to release
energy, is called _______________________ ____________________________.
Cellular Respiration Brain Pop
Pre-Knowledge:
We breathe in ___________________________. The food we eat is considered ______________________.
This food contains ___________________________ which is another word for sugar.
BrainPop
The body system that is responsible for breaking down food is the ________________________
_______________________. Glucose, along with _______________________________ from your lungs is
delivered to your cells through your bloodstream.
Inside tiny cellular structures called ___________________________ these substances undergo a chemical
reaction called _________________________________. When the reaction is complete, 3 things are left over:
1. An energy packed molecule called ____________.
2. _____________________
3. And waste gas called _______________________________.
Carbon dioxide is a harmful waste gas that your body needs to get rid of. If too much CO2 builds up in your
blood, you’d ___________.
The energy in _____________ allows cells to synthesize (make/produce) complex organic molecules like DNA,
RNA and proteins.
Cellular respiration ___is / is not________ just for humans.. You find it happening inside the cells of _______
living animals, and even ___________________.
When your body does not have enough oxygen for cellular respiration, your cells go with a backup plan called
_________________________.
Here, glucose is processed with ___________________________________ instead of oxygen. It doesn’t produce
as much energy as aerobic respiration. This process, in which something other than oxygen is used to release
energy, is called _______________________ ____________________________.
Respiration Reading
You’ve been hiking all morning and you are hungry. You get out the sandwich you packed and you begin
munching. Why does your body need food?
What is respiration?
Food supplies your body with glucose, an energy rich sugar. Respiration is the process by which cells obtain
energy from glucose. During respiration cells break down simple food molecules such as sugar and release
the energy they contain.
Storing and Releasing Energy
Energy stored in cells is something like money in a savings account. When you eat you add to your body’s
energy savings account. When cells need energy they withdraw it by breaking down sugars in the process of
cellular respiration.
Breathing and Respiration
The term respiration has two meanings. You’ve probably used it to mean breathing, or moving air in and out
of your lungs. To avoid confusion the respiration process that takes place in cells is called cellular
respiration. Breathing brings oxygen, which is needed for respiration, into your lungs.
Respiration Process
Respiration takes place inside the mitochondria of cells. There glucose is broken down into small
molecules. The chemical reaction requires oxygen and it releases a great deal of energy. This is why the
mitochondria are called the powerhouses of the cell.
Respiration Equation
Although respiration occurs in a series of complex steps the overall process can be summarized in the
following equation:
C6H12O6 + 6 O2 à6 CO2 + 6 H2O + energy
Notice that the raw materials for respiration are sugar and oxygen. Plants and other organisms that go
through photosynthesis make their own sugar. The sugar in the cells of animals comes from the food they
consume. The oxygen used in respiration comes from the air surrounding the organism.
Comparing Photosynthesis and Respiration
During photosynthesis carbon dioxide and water are used to produce sugar and oxygen. During respiration
sugar and oxygen are used to produce carbon dioxide and water. Photosynthesis and respiration can be
thought of as opposite processes. Together these two processes form a cycle that keeps the levels of
oxygen and carbon dioxide fairly constant in earth’s atmosphere. Living things use both gasses over and
over again.