Xylem Cells and Their Functions

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What is the primary function of xylem cells?

To provide structural support to the plant

To transport nutrients and food from leaves to other growing parts of the plant

To transport minerals and water (correct)

To store large quantities of starch and fats

What is the difference between tracheids and vessel elements in xylem?

Tracheids are the only living cells in xylem

Tracheids are shorter and wider than vessel elements

Vessel elements are typically found in gymnosperms, while tracheids are found in angiosperms

Vessel elements are elongated cells that transport water and mineral salts (correct)

What is the primary function of phloem cells?

To transport nutrients and food from leaves to other growing parts of the plant (correct)

To transport minerals and water

To store large quantities of water

To provide structural support to the plant

What is the role of companion cells in phloem?

They provide metabolic support to the sieve tubes Signup and view all the answers

What is the function of phloem fibers?

To support the conductive cells of the phloem Signup and view all the answers

What is the primary role of xylem parenchyma cells?

To store large quantities of starch and fats Signup and view all the answers

What is the primary function of sclerenchyma cells in plants?

Provide structural support to the plant Signup and view all the answers

What is the primary function of the epidermis in plants?

Regulate gas exchange through stomata Signup and view all the answers

What is the main difference between fibers and sclereids, the two types of sclerenchyma cells?

Fibers are long and slender, while sclereids are star-shaped with thick cell walls Signup and view all the answers

What is the role of guard cells in the epidermis?

Regulate the rate of transpiration by opening and closing the stomata Signup and view all the answers

What is the primary function of trichomes in plants?

Provide a first line of defense for the plant Signup and view all the answers

Which plant structure is responsible for transporting substances throughout the different parts of the plant?

Vascular tissue Signup and view all the answers

What is the primary function of the flagellum?

To move the entire cell Signup and view all the answers

Which of the following statements about cilia is correct?

They are used to move entire cells or substances along the outer surface of the cell Signup and view all the answers

What is the primary function of centrioles?

To appear to have some role in pulling the duplicated chromosomes to opposite ends of the dividing cell Signup and view all the answers

What is the primary function of the cell wall?

To provide structural support and give shape to the cell Signup and view all the answers

What is the primary function of plasmodesmata?

To allow the trafficking of molecules between cells and play important roles during plant development Signup and view all the answers

Which of the following is NOT a function of ground tissue?

To allow the trafficking of molecules between cells Signup and view all the answers

Xylem Cells and Their Functions

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