Why are many digestive enzymes produced in an inactive form and then activated in the lumen of the digestive tract?
A. It helps to break down macromolecules(proteins, carbohydrates, nucleic acids, lipids) faster.
B. The temperature of organism changes when food falls into digestive tract, that helps to activate digestive enzymes.
C. Digestive enzyme should have an inactive period, only after that period they could be activated.
D. Digestive enzymes would destroy the cells that produce and secrete them if they were produced in an active form.
Ans: D. Digestive enzymes would destroy the cells that produce and secrete them if they were produced in an active form.
You might also like to view...
An important grazer of kelp plants is the:
a. octopus. b. kelp bass. c. sea urchin. d. sea otter. e. sea anemone.
In _______, the dominant allele can only partially mask the recessive allele.
a) codominance b) incomplete dominance c) simple dominance d) complete dominance
Which of the following is an example of analytical epidemiology?
A) cross-sectional studies B) descriptive studies C) correlation studies D) observational studies E) case reports
Predict the change in surface area and volume of a spherical cell if the diameter of the cell doubles.
A. The surface area will increase by a factor of 2 and the volume will increase by a factor of 4. B. The surface area and volume will both increase by a factor of 4. C. The surface area will increase by a factor of 4, while the volume will increase by a factor of 8. D. The surface area will increase by a factor of 8 while the volume will increase by a factor of 4.