WorksheetsMetabolism & Enzymes
Total questions: 12
Worksheet time: 24mins
Which of the following represents the correct sequence of organelles involved in the production of lipase in the pancreatic cell?
ribosome -> golgi apparatus -> transport vesicle -> secretory vesicle
ribosome -> transport vesicle -> golgi apparatus -> secretory vesicle
ribosome -> rough endoplasmic reticulum -> transport vesicle -> golgi apparatus -> secretory vesicle
ribosome -> rough endoplasmic reticulum -> golgi apparatus -> secretory vesicle
What substance is needed to assist some types of enzymes to function properly?
product
substrate
inhibitor
cofactor
Diagram shows the mechanism of enzyme action on substrate based on the lock and key hypothesis.
What does Y represent?
product
enzyme
substrate
enzyme-substrate complex
Diagram shows the effect of pH on the activities of two types of enzymes in the human digestive system.
Which of the following are the locations where the enzymes are most active
protease (colon); amylase (stomach)
protease (duodenum); amylase (colon)
protease (duodenum); amylase (stomach)
protease (stomach); amylase (duodenum)
Which of the following curves A,B, C and D represents the bacterial enzyme activity?
A
B
C
D
Diagram shows a pair of bloodstained trousers.
Which of the following enzymes can be used to remove the blood
Lipase
Amylase
Cellulase
Protease
Which of the following functions as a coenzyme in cellular respiration?
ribozyme
vitamin A
vitamin B
vitamin K
Which of the following statements regarding enzymes is not true?
enzymes are proteins
enzymes are not affected by heat
enzymes change the rate of reaction
enzymes remain unchanged at the end of a catalytic process
Diagram 7 shows the mechanism of enzyme
action
Which of the following can be deduced from
Diagram 6?
I. Enzyme reaction is reversible
II. Enzyme action is highly specific
III. Enzyme is not destroyed at the end of the
reaction
IV. Optimum temperature for enzyme reaction
is 37°C
I & II
I & III
II & III
III & IV
Rennin is derived from the stomach of a calf used in manufacturing of cheese. What is the function of rennin in cheese making industry?
Coagulates milk into cheese
Slows down the time for milk to coagulate
Gives cheese a good taste and texture
Converts caseinogen into casein
The following information is about the application of enzyme in industry
a) removes the seed coats from cereal grains
b) extracts agar jelly from seaweeds
Which of the following is the enzyme?
zymase
amylase
protease
cellulase
Diagram shows two face towels, P and Q, that were
stained with butter. The towels were washed with
washing powder that contains enzyme X at different
temperatures.
What is enzyme X and the possible temperatures that
were used for P and Q?
lipase : temperature for P 10°C temperature for Q 35°C
amylase : temperature for P 10°C temperature for Q 35°C
lipase : temperature for P 10°C temperature for Q 10°C
amylase : temperature for P 10°C temperature for Q 10°C
