Why does RuBisCo carry out preferential carboxylation than oxygenation in plants.

Why is the RuBisCo enzyme more appropriately called RuBP Carboxylaseoxygenase and what important role does it play in photosynthesis?

How do plants carry out control and co-ordination?

How is pollination carried out in water plants?

Both animals and plants grow. Why do we say that growth and differentiation in plants is open and not so in animals? Does this statement hold true for sponges also?

Diseases in humans can be prevented by administration of vaccines. Vaccines contain inactivated, killed / weakened pathogens that can be used as antigens to provide either permanent or temporary immunity against a specific pathogen or disease. Conventional methods of vaccine preparation include the use of completely or partially killed pathogens. These vaccines however posed a risk of causing disease in case of some persons. Biotechnological techniques provide alternative antigenic genes isolated in the laboratory that can be used to make pure forms of proteins that can be used as antigens to activate the immune system. Recent developments in this field include production of edible vaccines like transgenic potatoes. Consumption of raw potatoes is speculated to develop immunity against the pathogen. These edible vaccines are produced by inserting genes isolated from specific pathogens to produce the antigen in the plants. Based on the given paragraph answer the following questions. Why are vaccines produced using biotechnology safer than conventional vaccines?

Why does this happen? Substances like resin, gum, etc. are given out of the plant body.

Why does not photorespiration take place in C4 plants?

In C_4 plants, bundle sheath cells carrying out Calvin's cycle are very few in number. Then also C_4 plants are highly productive. Explain.

Why large animals can not carry out respiration without the help of the circulatory system?

Why does steam at 100^@C cause more harm to the skin than water at 100^@C ?