Apical Meristem

figure 29-9

Observing Stems

Materials winter twig, fresh stem with leaves, hand lens or dissecting microscope


1. Observe the twig with the hand lens. Locate several buds, and identify the bud scales. Locate leaf scars. Identify a node and an internode. Draw and label the twig.

2. Observe the fresh stem with the hand lens. Locate and identify the stem, nodes, internodes, buds, and a leaf. Draw and label the fresh stem.

Analysis How are a node and an internode related? How are a bud and a node related? How are the two stems alike? How are they different?

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