Read the following statements and choose the correct option: 1. Plant cell walls are made of cellulose 2. Exoskeletons of arthropods, are made up of fructose. 3. Cellulose does not contain complex helices and hence cannot hold I2. 4. Starch is a variant of this but present as a store house of energy in plant tissue. 5. Complex polysaccharides are mostly homopolymers

Step-by-step solution

Plant cell walls are made of cellulose. Exoskeletons of arthropods, are called chitin.,"In the absence of any enzyme this reaction is very slow, with about 200 molecules of H2CO3 being formed in an hour. However, by using the enzyme present within the cytoplasm called carbonic anhydrase, the reaction speeds dramatically with about 600,000 molecules being formed every second."