Parts of the Shoot Apical Meristem Flashcards

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0
Q

The two zones of tunica and corpus found in the shoot apical meristem are most commonly located in what type of plant?

A

Angiosperms (a.k.a. flowering plants)

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1
Q

What are the two distinguishable zones of the shoot apical meristem?

A
  1. Tunica

2. Corpus

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2
Q

Tunica is the _________ row(s) of initials in the S.A.M.

A

Outermost

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3
Q

How many rows of tunica cells are there?

A

1 to 3 rows

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4
Q

In tunica cells only _________ cell divisions occur.

A

Anticlinal

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5
Q

New initials are formed at the _________ of the S.A.M that soon can contribute to formation of ___________ and axillary buds.

A

Flanks, leaf primordia

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6
Q

As new initials are forming, the tunica cells still allow the __________ to be protected.

A

Corpus

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7
Q

The corpus is the?

A

Largest, and more central region of initials of the S.A.M.

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8
Q

The corpus predominately only contains ____________ divisions?

A

Periclinal

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9
Q

Periclinal division in the corpus allow what to happen?

A

The corpus is maintained while still producing derivates below the corpus that will eventually differentiate at the interior of the stem to become cells of the pith

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10
Q

Periclinal cell division aids in what type of growth for the plant?

A

Primary growth, it adds height (vertical)

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11
Q

Anticlinal cell division

A

The newly formed primary cell wall forms perpendicular to the reference surface (90 degrees)

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12
Q

Periclinal cell division

A

The newly formed primary cell wall forms parallel to the reference surface

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