Root Hair Absorption of Water
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Questions and Answers

What is the pathway of water movement into the root hair cell?

Through the cell wall and cell membrane, and into the cytoplasm.

What is the primary function of root hair cells in plants?

To provide a large surface area for the absorption of water and mineral ions from the soil.

What is the form of magnesium and nitrate in the water between soil particles?

Ions, dissolved in the water.

What are the special cells called that make up the water transport system of the plant?

<p>Xylem vessels.</p> Signup and view all the answers

What is the purpose of the spaces between soil particles?

<p>To hold air and water.</p> Signup and view all the answers

What is the structure that allows root hair cells to grow in between soil particles?

<p>The root hair cell is part of a single cell.</p> Signup and view all the answers

What is the structural characteristic of xylem vessels that allows them to form long, empty tubes that reach from the roots to the highest parts of the plant?

<p>Their end walls have completely disappeared.</p> Signup and view all the answers

What is the diameter of a xylem vessel, and what does the photograph show about their size?

<p>The diameter of a xylem vessel is about 0.05 mm, and the photograph shows that they come in a range of different sizes.</p> Signup and view all the answers

What is the function of the root cap, and how does it relate to the growth of the root?

<p>The root cap protects the tip of the root as it grows through the soil.</p> Signup and view all the answers

What is the composition of the wood in a tree trunk, and what is its role in the plant?

<p>The wood in a tree trunk is made up of xylem vessels, and they carry water from the roots to the top of the tree.</p> Signup and view all the answers

What is the fate of the contents of xylem vessels, such as cytoplasm and a nucleus, and what is left behind?

<p>The contents of xylem vessels, such as cytoplasm and a nucleus, have disappeared, leaving only their cell walls with an empty space inside.</p> Signup and view all the answers

What is the role of root hair cells in the absorption of water and mineral ions, and where do they absorb it from?

<p>Root hair cells absorb water and mineral ions from the outside of the root, and then transport it into the xylem vessels.</p> Signup and view all the answers

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