WorksheetsMetabolism
Total questions: 10
Worksheet time: 5mins
What is the main role of the living cell in metabolism?
It acts as a storage unit for energy.
It functions as a miniature chemical factory where reactions occur.
It produces light in all organisms.
It only extracts energy but does not use it.
What is an example of organisms converting energy into light?
Photosynthesis in plants
Fermentation in yeast
Bioluminescence in water and land organisms
Cellular respiration in animals
Which of the following is an example of a coenzyme?
Zinc
Iron
Vitamins
Copper
What is the optimal temperature range for most human enzymes?
25–30°C
35–40°C
45–50°C
60–70°C
Which enzyme is responsible for breaking down sucrose?
Amylase
Sucrase
Lipase
Protease
Where does a substrate bind to an enzyme?
Coenzyme
Active site
Allosteric site
Outer membrane
Why is it important for cells to regulate their metabolic pathways?
To prevent energy production
To ensure chemical reactions occur randomly
To prevent chemical chaos and conserve resources
To allow uncontrolled enzyme activity
How do cells regulate enzyme activity?
By switching genes on or off
By removing enzymes from the cell
By stopping all metabolic pathways
By increasing the temperature of the cell
Which of the following acts as an allosteric activator in metabolism?
ATP
ADP
Water
Carbon dioxide
What is the primary function of catabolic pathways?
To build complex molecules from simpler ones
To release energy by breaking down complex molecules
To store energy in the form of ATP without any breakdown
To transport molecules across the membrane without energy use
