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74 terms

BOT OQ3

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Where in the eudicot plant root would you expect to find vascular tissue?
In the center
Where would one find guard cells?
Among leaf epidermal cells
Which of the following is not a characteristic of parenchyma cells?
little metabolism and synthesis
Which of the following structures are found in both plant cells and animal cells?
mitochondria
Which plant part is a young sporophyte that lies dorman in the seed and is protected by the seed coat?
embryo
Which of the following correctly compares extracellular matrix of animal cells to walls of plant cells?
Both the ECM and plant cell wall are composed of varying mixtures of proteins and carbohydrates.
Which of the following is incorrectly paired with its structure and function?
Pericyle - waterproof ring of cells surrounding the central stele in roots
Which of the following is closest to the center of a woody stem?
old xylem
Which of the following is NOT a part of the ground tissue system?
sieve tube members
Which of the following characteristics is true of flowering plants?
All of the choices are true
Which of the following is a type of root?
All of the choices are correct
Which of the following is a feature eudicots, but not monocots?
netted venation
Which of the following best distinguishes between annuals, biennials, and perennials?
the time from seed germination to seed production
Which of the following is produced directly by the stem apical meristem (SAM)?
Protoderm
Which part of a plant absorbs most of the water and minerals taken up from the soil?
Root hairs
What effect does "pinching back" have on a houseplant?
produces a plant that will grow fuller
What is the difference between the root epidermis and the shoot epidermis?
On the shoot epidermis produces a waxy cuticle
What tissue makes up most of the wood of a tree?
secondary xylem
Which of the following are dead at maturity?
Tracheids and vessel elements
Which of the following is the correct sequence from the growing tops of the root upward?
I,V, III, II, IV
Which is NOT a type of root?
adventurous
Which would be least useful in figuring out whether a plant is a monocot or a dicot?
size at maturity
Cell expansion involves which of the following components?
Expansion of cellulose microfibrils
You are studying a plant from the arid southwestern U.S. Which of the following adaptations is least likely to have evolved in response to water shortages?
Development of large leaf surfaces to absorb water
Suppose George Washington completely removed the bark from around the base of a cherry tree but was stopped by his father before cutting the tree down. The leaves retained their normal appearance for several weeks, but the tree eventually died. The tissue that George left function was the
xylem
The genes that initiate flower formation are
floral meristem identity genes
The production of root hairs is mostly dependent on which of the following influences?
Position of an epidermal cell
The fiber cells of plants are a type of
sclernchyma
The vascular system of a three year old eudicot stem consists of
3 rings of xylem and 1 of phloem
The photosynthetic cells in the interior of a leaf are what kind of cells?
parenchyma
The protective layer that covers the apical meristem of a root and may aid in orientation is called the
root cap
The definition of simple primary tissues is that they are composed of which of the following?
one or two simple cell types
The protoderm of the apical meristem generates what cell types?
trichomes, guard cells, and epidermal cells
The genes that initiate flower formation are
floral meristem identity genes
The ground meristem gives rise to which of the following?
All of the choices are correct
The driving force that pushes the root tip through the soil is due primarily to
elongation of cells behind root apical meristem
The term herbaceous implies that a plant
has not developed a secondary or vascular cambium
A student examining leaf cross sections under a microscope find many loosely packed cells with relatively thin cells. The cells have numerous chloroplasts. What type of cells are these?
parenchyma
A vascular bundle:
contains xylem and phloem
A region of cell division in a plant is called a
meristem
Arrange the structures found in a typical leaf blade from inside to outside.
Vascular bundle, mesophyll, epidermis
Artichoke hearts are tender and tasty, the leaves are too, but most of an artichoke leaf is fibrous and impossible to chew. The leaves must contain lots of
sclerenchyma cells
According to the ABC model of floral development, a showy ornamental flower with multiple sepals and petals but no stamens or carpels would express
A and B genes only
A cross section of part of a plant exposes epidermix, a thick cortex, and a central cylinder of xylem and phloem. This part is the
root
A short branch was cut into three segments as shown in figure to some cuttings. Roots will form at which positions?
A, C, and E
A root hair is
An extension of an individual cell and structure that absorbs water from soil
Plants grow by primary and secondary mechanisms. Choose the correct description of a mechanism and its result.
Primary and secondary growth are required to produce woody plants.
Plant embryos grow into seedinglys by adding new cells at only 2 growth points which are called
shoot and root apical meristems
Procambium ultimately gives rise to
primary and secondary xylem and primary and secondary phloem shoot and root apical meristems
Primary meristems are located in the ___ of the plant
root and stem tips
Pores on the leaf surface that function in gas exchange are called
stomata
Lateral roots in seed plants are initiated by cell division in the
pericycle
Intermediate growth is a characteristic of which of the following plant organs?
shoots and roots
If you were able to walk into an opening cut into the center of a large redwood tree, when you exit from the middle of the trunk (stem) outwards, you would cross, in order
the annual rings, phloem, and bark
If a cross section of a eudicot herbaceous stem were compared with the cross sectino of its root the primary difference would be
location of vascular tissue
In most leaves, chloroplast containing cells are most closely compacted in
the mesophyll
Bark becomes scarly because
cork cambium divides only parallel to the surface, and thus does not increase in circumference
Both tracheids and fibers
have lignified cell walls
Before differentiation can begin during the processes of plant cell and tissue culture, paraenchyma cells from that source tissue must
undergo dedefferentation
Vascular plant tissue includes all of the following cell types except
cambium cells
Experiments involving the peptide known as CLAVATA3 were carried out to determine which of the following?
The influence of CLAVATA3 on peripheral zone cell development
Stomata pores function to allow which of the following?
All of the choices are correct
Shoot elongation in a growing bud is due primarily to
cell elongation localized in each internode
Secondary phloem in the root develops from the
vascular cambium
Features associated with the leaf epidermis are
All of the choices are correct
Monocot stems differ from dicot stems in that
In cross section the vascular bundles of monocots have a complex arrangement, whereas in dicots the vascular bundles are arranged in a circle
Most lengthwise growth of root tip into soil results mainly from
elongation of cells
Guard cells
control the rate of transpiration
Leaves occur at intervals along the plant stem. The region where a leaf is attached to the stem is the
node
one important difference between the anatomy of roots and the anatomy of leaves is that
a waxy cuticle cover leaves but is absent in roots
In a large, old tree, which one of the following provides the MOST physical support?
heartwood
All of the following cell types are correctly matched with their functions except
companion cell--formation of secondary xylem and phloem
The mesophyll of the leaf has which of the following characteristics?
It is made up of palisade and spongy parenchyma cells
What tissue makes up most of the wood of a tree?
secondary xylem