Question

Which of the following is not a characteristic of proteins?
A. They contain genetic information
B. They can act as hormones
C. They can catalyse chemical reactions
D. They act in cell membrane trafficking
E. They can bind foreign materials

Answer 1

Hint: Proteins are large, complex molecules that have a variety of functions in the body and are essential to good health. They are made from amino acids and are used by organisms to build structures, facilitate chemical processes, and give animal locomotion.

Complete answer:
Proteins are made of a long chain of amino acid is also called the building block of amino acid protein are large complex molecules it is essential for good healthy fat and carbohydrate are a long chain of amino acid and its facilitate chemical processes. There are 20 essential amino acids. Two amino acids come together and form peptide bond structures of the protein are primary, secondary, and tertiary. They act in blood clotting through thrombin, fibrinogen, and other protein factors and the defense against infections by means of protein antibodies.
In option B: proteins act as a hormone function in chemical signalling molecules called hormones. Proteins are secreted by endocrine cells that act to control or regulate specific physiological processes. so this option is not correct
In option C: It catalyses chemical reactions protein are biocatalyst in this process lower the activation energy for reaction faster the reaction.
In option D: Membrane trafficking functions in the delivery of proteins that are newly synthesized in the endoplasmic reticulum. so this option is not correct.
In option E: Y-shaped antibodies proteins that bind to the body's foreign invaders and signal the immune system. So this option is not correct

So, the correct answer is option A.

Additional information:
All enzymes are protein enzymes, which are the catalysts of all metabolic reactions, enabling an organism to build up the chemical substances necessary for proteins, nucleic acids, carbohydrates, and lipids to convert them into other substances, and to degrade them.

Note:
In vertebrates, the respiratory protein haemoglobin acts as an oxygen carrier in the blood. A huge group of structural proteins maintains and protects the structure of the animal body.