[LBBBION] 01 primary and secondary growth of the stem

What is the main aboveground axis of the plant called?

• Flower

• Leaf

• Stem

• Root

Which part of the plant stem functions in support of leaves, flowers, and fruits?

• Pith

• Cortex

• Stem

• Epidermis

What is responsible for the growth in length of stems?

• Leaf Primordia

• Apical Meristem

• Procambium

• Pith

Which tissue system in stems includes the epidermis and serves as the outermost layer?

• Dermal Tissue System

• Fundamental Tissue System

• Vascular Tissue System

• Cortex

In a monocot stem, where are the vascular bundles scattered?

• Throughout the stem body

• Near the epidermis

• Only in the center

• Next to the pith

What is the outermost layer of a woody dicot stem composed of?

• Cortex

• Periderm

• Phloem

• Pith

What is the function of phloem rays in a woody dicot stem?

• Produce new xylem

• Support the stem

• Radial transport of food

• Conduction of water

What is the central area of the stem composed of in a woody dicot stem?

• Xylem

• Pith

• Periderm

• Phloem

What is the term for the outer portion of the wood in a woody dicot stem?

• Sapwood

• Bark

• Heartwood

• Periderm

Where are trichomes usually found in plants?

• On the undersurface of leaves

• In the soil

• On the stem only

• On the upper surface of leaves