Please enable JavaScript.
Coggle requires JavaScript to display documents.
BIOENERGETICS (Uses of glucose (Glucose helps to release energy in…
BIOENERGETICS
Uses of glucose
Glucose helps to release energy in respiration. Photosynthesis can only produce glucose in the day but respiration can take place at night aswell.
-
-
-
-
Limiting factors
Light intensity becomes a limiting factor at a point and the rate of photosynthesis no longer increases. There are 3 other limiting factors:
Carbon dioxide-when the amount of carbon dioxide increases, the rate of photosynthesis increases but this becomes limited at a point as at a high concentration there will be enough CO2
Then temperature becomes the limiting factor. When the temperature is too high, the enzyme denatures and the rate of photosynthesis no longer increases.
-
Respiration
-
-
Anaerobic respiration(in plants and yeast cells) - glucose releases energy to produce ethanol +carbon dioxide
Metabolism
-
-
In plants: glucose is converted into cellulose to strengthen cell wall, glucose is converted into starch which is a store of energy, glucose is converted into amino acids to synthesize proteins
In humans: glucose is converted into glycogen which is a storage form of glucose
Photosynthesis
-
First, the plant takes in carbon dioxide and water into the leaf. Light energy is then absorbed by chlorophyll. This light energy causes carbon dioxide and water to convert into glucose. Oxygen is also produced.
Exercise
The body needs energy while exercising, so aerobic respiration increases. This means that the amount of oxygen needs to increase and this is done by increasing breathing rate. The heart rate also increases to pump more oxygenated blood into the body.
When not enough oxygen can be supplied, anaerobic respiration takes place. Lactic acid is produced and this causes fatigue in muscles so muscles don't contract properly. At this point, lactic acid needs to be removed and oxygen debt is created. Breathing increases to provide the body with the oxygen it needs.
Aaerobic respiration releases more energy as the oxidation of glucose is complete but in anaerobic respiration it is not complete
Lactic acid is taken out through the blood, then through the liver to convert back to glucose. Then, oxygen is needed.