Questions

Plants grow in size both in height and in girth. Enlargement of cells already present cannnot contribute much to the growth. Only addition of more and more cells could increase the size of the plant considerably.

Alluvial type of soil has the largest area covered in India. Alluvial soils are fine-grained fertile soil deposited by water flowing over flood plains or in river beds. Most of the soil is Sandy and clayey soils are not uncommon.

The Article - I of the constitution of India describes India as Union of States.

Plants are photosynthetic autotrophs, which means that they are able to produce their own food through the process called photosynthesis.

In photosynthesis, plants use light, water, and carbon dioxide to create glucose, which they convert to cellulose and use to make new cells.

Hence, that is why, Plants are called photosynthetic autotrophs.

A protein that acts as a hormone is INSULIN.

Insulin is a peptide hormone produced by beta cells of the pancreatic islets; it is considered to be the main anabolic hormone of the body.  Insulin helps keeps your blood sugar level from getting too high or too low.  

Metabolism is the set of life-sustaining chemical transformations within the cells of organisms. The three main purposes of metabolism are the conversion of food/fuel to energy to run cellular processes, the conversion of food/fuel to building blocks for proteins, lipids, nucleic acids, and some carbohydrates, and the elimination of nitrogenous wastes.

Younger people have faster metabolism than adults. Hence, the given statement 'Younger people generally have a slower metabolism than adults' is FALSE.