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Bio Ch 35

Plant Structure, Growth and Development

You are studying a plant from the arid southwestern United States. Which of the following adaptations is least likely to have evolved in response to water shortages? Development of large leaf surfaces to absorb water
Which part of a plant absorbs most of the water and minerals taken up from the soil? root hairs
An evolutionary adaption that increases exposure of a plant to light in a dense forest is.... apical dominance
A person working with plants may remove apical dominance by... pruning
Land plants are not composed of what tissue? mesodermal tissues.
Vascular plant tissue includes all of the following cell types except cambium cells
What functional plant cells lack a nucleus? xylem and sieve-tube cells
Long, thin tapered cells with lignified cell walls that function in support and permit water to flow through pits sclerenchyma
Living cells that lack nuclei and ribosomes: they transport sugars and other organic nutrients sieve cells
The least specialized plant cells, which serve general metabolic, synthetic, and storage functions Parenchyma
Cells with unevenly thickened primary walls hat support still-elongating parts of the plant Collenchyma
Mature cells without protoplasts with thick, lignified secondary walls that may not function in transport Sclerenchyma
Which of the following is not a characteristic of parenchyma cells? Have secondary thickenings
Which of the following tissues is incorrectly matched with its characteristics? collenchyma- uniformly thick-walled supportive tissues
The fiber cells of plants are a type of sclerenchyma
The vascular bundle in the shape of a single central cylinder root is called stele
One important difference between the anatomy of roots and the anatomy of leaves is that.. a waxy cuticle covers leaves but is absent in roots
the photosynthetic cells in the interior of a leaf are what kind of cells: parenchyma
A student examining leaf cross sections under a microscope finds many loosely packed cells with relatively thin cell walls. The cells have numerous chloroplasts. What types of cells are these? Parenchyma
Which of the following is true about secondary growth in plants? Secondary growth is produced by both the vascular cambium and the cork cambium
A friend has discovered a new plant and brings it to you to classify. h eplant has the following characteristics a taproot system with growth rings evident in cross section and a layer of bark around the outside. It is? Woody eudicot
Shoot elongation in a growing bud is due primarily to.. cell elongation localized in each internod
Axillary buds develop from meristematic cells left by the apical meristem
Gas exchange, necessary for photosynthesis, can occur most easily in which leaf tissue? spongy mesophyll
What is the correct sequence from the growing tips of the root upward? root cap, apical meristem, zone of cell division, zone of elongation, and zone of maturation
Which of the following is incorrectly paired with its structure and function? Pericycle- waterproof ring of cells surrounding the stele in roots
Which of the following root tissues gives rise to lateral roots? Pericycle
Pores on the leaf surface that function in gas exchange are called: stomata
Which of the following is a true statement about growth in plants some plants secondary growth
Which of the following cell types are correctly matched with their functions except... companion cell-formation of secondary xylem and phloem
What tissue makes up most of the wood of a tree? secondary xylem
The vasclar system of a three-year-old eudicot stem consists of 3 rings of the xylem and 1 rings of the phloem
Which of the following is true of bark? It is composed of phloem plus periderm.
Suppose Geroge completely removed the bark from around the base of a cherry tree but was stopped by his father before cutting the tree down. Plant lived for several weeks but then died. What tissue was left? xylem
Additional vascular tissue produced as secondary growth in a root originates from which cells? vascular cambium
Before differentiation can begin during the process of plant cell and tissue culture, parenchyma cells from the source tissue must undergo differentiation
In leaves, chloroplasts are found in palisade mesophyll
------- provides cells for secondary growth. Vascular cambium
Secondary grrowth never occurs in leaves
How is he supply of vascular cambium maintained? Through the division of cells
Which structure is incorrectly paired with its tissue? companion cell-ground tissue
Wood consists of secondary xylem.
Which of the following is not part of an older tree's bark? secondary xylem
Which of the following arises from meristematic activity Secondary xyelm, leaves, trichomes, and tubers (all of the above)
------ is to xylem as ---- is to phloem. vessel element; sieve-tube member.
The driving force that pushes the root tip through the soil is due primarily to: elongation of cells behind the root apical meristem.
------ provides cells for primary growth apical meristems
Created by: kccroy