In Tinyville Hospital, Dr. Wise was preparing for a special lecture. ‘Today,’ he announced to the young medical students, ‘we’ll learn about plasma proteins!’

Preston, a curious protein particle, overheard Dr. Wise. 'Plasma proteins? That's me!' he exclaimed, floating eagerly among red and white blood cells.

Dr. Wise pointed to a chart. 'There are many plasma proteins, each with a function. Albumin, for instance, helps maintain blood pressure,' he explained.

'And what about me?' Preston asked a nearby antibody. 'You, dear friend, help fight diseases!' the antibody replied cheerfully.

As Preston swirled around, he saw Fibrinogen fibers working. 'We help blood clot,' they said. 'Without us, cuts wouldn’t heal!'

Next, Preston encountered some carrier proteins. 'We transport nutrients and hormones,' they explained, bustling with important packages.

Preston noticed not all proteins were busy. 'Why the rest?’ he asked. Dr. Wise answered, 'Some are reserves for when the body needs them.'

Dr. Wise then spoke of clinical significance. ‘Abnormal levels can indicate disease. Low albumin? Kidney trouble or malnutrition,’ he warned.

`'And high protein levels?' asked a student. 'Could mean dehydration or infection,' Dr. Wise responded, making notes on the whiteboard.

Taking it all in, Preston felt proud. He hadn't realized how vital he was for health. 'I matter!' he thought, puffing up with pride.

Dr. Wise concluded, 'Now you see, plasma proteins like Preston are essential!' The students clapped, and Preston glowed with a sense of purpose.

The bell rang, ending class. Students left feeling informed and ready to discover more about the wonders of the body, just like Preston.