Exam 26: Secondary Growth in Stems

Which of the following statements about tyloses is FALSE?

Which of the following statements about growth rings is FALSE?

A radial section and a tangential section are longitudinal sections.

In the southern hemisphere, a biennial can correctly be called a winter annual.

In many woody roots and stems, only the secondary phloem in the current growth ring is active in long-distance food transport.

In secondary tissues, the axial system consists of ______ cells and the radial system consists of ______ cells.

Lenticels function primarily in:

Cambial initials produce ______ cells toward the outside and ______ cells toward the inside.

All the periderms make up the outer bark.

Bark may contain primary tissues as well as secondary tissues.

The cells that comprise the vascular cambium are the ___________ and the ______________.

Secondary growth in the Tilia stem is different from that in the Sambucus stem because in the Tilia stem:

The periderm consists of:

Which of the following statements about resin ducts is FALSE?

New ray initials are produced by the fusiform initials.

Compression wood is a type of reaction wood found in angiosperms.

The order of tissues in the periderm, from the center of the plant toward the outside, is cork, cork cambium and phelloderm.

Fascicular cambium arises from procambium immediately outside the vascular bundles.

Which of the following is/are dead at maturity?

Growing seasons with favorable environmental conditions produce narrower growth rings than seasons with unfavorable conditions.