Urok-prezentcija Zony Kornja 6 Klass Po Biologii -

"But how does it get so long?" asked Masha from the front row.

The most popular slide came next. It looked like a fuzzy caterpillar. "This is the (or Maturation). Those 'hairs' you see aren't hair—they are Root Hairs. They increase the surface area so the plant can drink up every drop of water and mineral it can find. This is where the plant breathes and eats." urok-prezentcija zony kornja 6 klass po biologii

As the presentation ended, Mr. Petrov handed out small magnifying glasses and sprouted beans. "The slides are over," he said with a wink. "Now, go find the 'helmets' and the 'hairs' yourselves." "But how does it get so long

"Everyone thinks roots are just brown sticks in the dirt," Mr. Petrov began, clicking his remote. "But they are actually highly organized machines." "This is the (or Maturation)

On the next slide, a cluster of tiny, active cells appeared. "Right behind the helmet is the . These cells are the engines. They never stop splitting, creating the new life that pushes the root deeper."

Finally, he showed the top part of the root, where it met the stem. "The . This is the highway. Once the root hairs grab the water, this zone pumps it all the way up to the leaves so the tree can grow."

He pointed to the first slide: a microscopic view of a root tip. "At the very bottom, we have the . Think of it as a helmet. It’s tough and slippery, protecting the delicate cells as the root punches through rocks and hard soil."