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WorksheetsMetabolism & Enzymes
Total questions: 15
Worksheet time: 8mins
What is the primary function of enzymes in biological systems?
To provide energy
To speed up chemical reactions
To act as structural components
To store genetic information.
Enzymes are specific to their substrates because of their ______.
size
shape
color
weight
Which of the following statements is true about enzymes?
A) They are used up in reactions
B) They can be reused
C) They are made of carbohydrates
D) They are not affected by pH.
Which of the following is a product of chemical reactions in living organisms?
ATP
Water
Soil
Wind
What is the process of synthesis in metabolism?
Hydrolysis
Anabolism
Digestion
Catabolism
Fill in the blank: Enzymes are crucial in both dehydration synthesis and ______.
A) Photosynthesis
B) Hydrolysis
C) Respiration
D) Fermentation
Fill in the blank: The enzyme in hydrolysis helps to ______ a bond.
A) Form
B) Break
C) Strengthen
D) Weaken
Building polymers is associated with which type of reaction?
A) Exergonic
B) Endergonic
C) Catabolic
D) Hydrolysis
What is the change in free energy (ΔG) in an exergonic reaction?
Positive
Negative
Zero
Undefined
Which reaction type is associated with a decrease in free energy?
A) Endergonic
B) Exergonic
C) Both
D) Neither
Which type of reaction is characterized by ΔG < 0?
A) Endergonic
B) Exergonic
C) Both
D) Neither
Fill in the blank: The process of powering a car involves breaking chemical bonds in gas, which yields high-quality energy and produces _______ energy to move the car.
Potential
Kinetic
Thermal
Electrical
According to the second law of thermodynamics, what is the efficiency of energy conversion processes?
100% efficient
Less than 100% efficient
More than 100% efficient
Not efficient at all.
Fill in the blank: In a car engine, breaking chemical bonds in gas during combustion yields high-quality energy, which produces _______ energy to move the car.
Potential
Kinetic
Thermal
Electrical
Which level in the energy pyramid has the highest energy availability?
A) Apex Predators
B) Third Level Consumers
C) Secondary Consumers
D) Primary Producers
