We are all aware of the circulatory system that pumps blood through our bodies.

It’s a closed circuit, with arteries carrying oxygen-rich blood to the body and veins taking it back to the heart.

But what if this wasn’t the case? What if your veins were open, and your arteries were closed?

Sound like science fiction? Think again!

This is exactly how plant tissues function: water from their roots moves up in sap vessels, depositing minerals as it nears leaves.

When these cells need more sugars for energy or other nutrients they close their stomata to stop further water loss while opening up pores on their cuticles for gas exchange.

This is known as the plant’s ‘transpiration stream’ and can be seen in these diagrams.

The main goal of this blog post is to teach about plants, cells that are more like humans than one may think! It talks about how a closed circulatory system isn’t different from an open circulatory system.

In conclusion, I hope you learned something new today.

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