Respiration Flashcards
What is respiration?
Respiration is the process by which energy is released from food by all living cells.
Energy released at each stage is to build energy carrying molecules called?
Adenosine triphosphate or ATP
Explain how an ATP molecule is formed.
An ATP molecule is formed by combining some of the energy release with an ADP molecule or an adenosine diphosphate molecule and a phosphate group present in the cell.
List three advantages that storage and transportation of energy ATP.
The energy can be released rapidly
Energy can be released exactly where it is needed in the cell.
Only a small amount of energy is released when each ATP molecule is broken down.
List three ways energy released by ATP is used by cells
- To manufacture complex, biologically, important molecules, such as proteins and DNA.
- For a cell growth and repair.
- For cell division.
not all the energy released during respiration converted to ATP, and how does this energy benefit the body?
The energy is released as heat, which helps to maintain the body temperature at 37°C.
What are the two types of respiration?
Aerobic respiration
Anaerobic respiration
Aerobic respiration always produces?
Carbon dioxide, water and about 38 ATP molecules per molecule of glucose.
Does aerobic respiration occur in most cells or some?
Aerobic respiration occurs in most cells.
Where does aerobic respiration take place?
It takes place in the mitochondria.
In inhaled air, the oxygen composition is 21% and in exhaled air the oxygen composition is 16%. What is the reason for this difference?
The reason being oxygen diffuse is into the blood from the inhaled air, is transported to the body cells and used in respiration
