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What is the word equation for photosynthesis?
Carbon dioxide + water makes glucose + oxygen
What is the chemical symbol for glucose?
C6H12O6
What is the symbol equation for photosynthesis?
CO2 + H2O makes C6H12O6 + O2
What is the balanced symbol equation for photosynthesis?
6CO2 + 6H2O C6H12O6 + 6O2
What type of reaction is photosynthesis6CO2 + 6H2O C6H12O6 + 6O2
Endothermic
Where is energy transferred during photosynthesis?
From the environment to the chloroplasts by light
Which factors affect the rate of photosynthesis?
Temperature, Light Intensity, Carbon dioxide Concentration, Amount of Chlorophyll
What may the glucose produced in photosynthesis be used for?
used for respiration converted into insoluble starch for storage used to produce fat or oil for storage used to produce cellulose, which strengthens the cell wall used to produce amino acids for protein synthesis
To produce proteins what do plants require?
Nitrate ions that are absorbed from the soil.
What type of reaction is respiration?
Exothermic reaction
When does cellular respiration occur?
Continuously in all living cells
What does aerobic respiration mean?
It takes place using oxygen
What does anaerobic respiration mean?
It takes place without oxygen
Which type of respiration provides more energy?
Aerobic
Why do organisms need energy?
Chemical reactions to build larger molecules, Movement and Keeping Warm
What is the word equation for aerobic respiration?
Glucose + Oxygen makes Carbon dioxide + water
What is the symbol equation for respiration?
C6H12O6 + O2 makes CO2 + H2O
What is the balanced symbol equation for respiration?
C6H12O6 + 6O2 makes 6CO2 + 6H2O
What is the word equation for anaerobic respiration in muscle cells?
Glucose makes lactic acid
How would you describe the oxidation of glucose in anaerobic respiration?
Incomplete
What is the word equation for anaerobic respiration in plant and yeast cells?
Glucose makes Ethanol + Carbon dioxide
What do we call anaerobic respiration in yeast cells
Fermentation
What is fermentation used for?
The manufacture of bread and alcoholic drinks
What happens to the demand for energy, in the body, during exercise?
It increases
What changes occur to the body when exercising
Heart rate increases Breathing rate increases Breath volume increases
Why do changes occur in your body when exercising?
To supply the muscles with more oxygenated blood
If insufficient oxygen is supplied during exercise what happens?
Anaerobic respiration takes place
What does the incomplete oxidation of glucose cause a build up of?
Lactic Acid
What happens during long periods of vigorous activity?
Muscles become fatigued and stop contracting efficiently
What is the oxygen debt?
The amount of extra oxygen the body needs after exercise to react with the accumulated lactic acid
Where is the lactic acid converted back into glucose?
The liver
How does lactic acid get from the muscles to the liver?
In the blood
What is the definition of metabolism?
The sum of all the reactions in a cell or the body
What three substances can glucose be converted into?
Starch, Glycogen and Cellulose
What is a lipid molecule made out of?
One glycerol and three fatty acids
What are amino acids made from?
Glucose and Nitrate ions
What can amino acids be used to synthesise?
Proteins
What are excess proteins broken down into?
Urea
What does respiration transfer?
Energy
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