FREE Tree Biology Questions and Answers

Question 1

What part of the tree is responsible for transporting water from roots to leaves?

Accepted Answer

Xylem

Answer

The xylem is a crucial vascular tissue in trees responsible for transporting water and dissolved minerals from the roots upwards to the leaves. This process, known as transpiration, is essential for photosynthesis and maintaining the tree's turgor pressure.

Question 2

Which part of the tree produces new cells for growth?

Accepted Answer

Cambium

Answer

The cambium is a thin layer of meristematic tissue located between the xylem and phloem in woody plants. It is responsible for secondary growth, producing new xylem cells (wood) inwards and new phloem cells (inner bark) outwards, leading to an increase in the tree's girth.

Question 3

What is the function of stomata in leaves?

Accepted Answer

Gas exchange

Answer

Stomata are tiny pores, primarily located on the underside of leaves, that regulate the exchange of gases between the plant and the atmosphere. They allow carbon dioxide to enter for photosynthesis and oxygen and water vapor to exit during transpiration.

Question 4

Photosynthesis primarily occurs in which part of the tree?

Accepted Answer

Leaves

Answer

Photosynthesis, the process by which plants convert light energy into chemical energy, primarily occurs in the leaves of a tree. Leaves contain chloroplasts, which house chlorophyll, the pigment essential for absorbing sunlight and initiating the photosynthetic reaction.

Question 5

Which tissue carries sugars produced in the leaves to other parts of the tree?

Accepted Answer

Phloem

Answer

The phloem is the vascular tissue responsible for transporting sugars, produced during photosynthesis in the leaves, to other parts of the tree where they are needed for growth or storage. This process is called translocation, ensuring that all living cells receive the necessary energy.

Certified Arborist Test Practice Test

Certified Arborist Test Practice Test

FREE Tree Biology Questions and Answers