Biology Topic Practice

The Transpiration Stream

Transpiration is the loss of water from the leaves, which drives the movement of water from the roots.

How does high humidity affect transpiration?

What is The Transpiration Stream?

"Transpiration is the evaporation of water from plant leaves, creating a continuous stream of water through the xylem."

Question 1

Which answer best completes the statement? ____ tissue is made of hollow tubes that transport water

Question 2

A student thinks that stents are used to thin the blood. Why is this incorrect?

Question 3

Choose the correct option to complete the statement. Enzymes have an ____ that fits a specific substrate

Question 4

Which answer best completes the statement? Proteases break down proteins into ____

Water Transport in Plants

Xylem tissue: Transports water and mineral ions from the roots to the leaves.

Structure: Xylem is made of hollow tubes strengthened by lignin.

Stream: The constant movement of water up the plant is called the transpiration stream.

Factors: Rate is affected by temperature, humidity, air movement, and light intensity.

Exam Tip

Transpiration is faster in hot, dry, and windy conditions.

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