Mixed 1
Which part of a plant absorbs most of the water and minerals taken up from the soil?
A) taproots
B) root hairs
C) the thick parts of the roots near the base of the stem
D) storage roots
E) sections of the root that have secondary xylem
B) root hairs
Which of the following have unevenly thickened primary walls that support young, growing parts of the plant?
A) parenchyma cells
B) collenchyma cells
C) sclerenchyma cells
D) tracheids and vessel elements
E) sieve-tube elements
B) collenchyma cells
Plants contain meristems whose major function is to
A) attract pollinators.
B) absorb ions.
C) photosynthesize.
D) produce more cells.
E) produce flowers.
D) produce more cells.
Most of the growth of a plant body is the result of
A) cell differentiation.
B) morphogenesis.
C) cell division.
D) cell elongation.
E) reproduction.
A) cell differentiation.
LIBOYGO
BIOLOGY
Which structure is incorrectly paired with its tissue system?
A) root hair dermal tissue
B) palisade parenchyma ground tissue
C) guard cell dermal tissue
D) companion cell ground tissue
E) tracheid vascular tissue
D) companion cell ground tissue
The vascular bundle in the shape of a single central cylinder in a root is called the
A) cortex.
B) stele.
C) endodermis.
D) periderm.
E) pith.
B) stele.
Shoot elongation in a growing bud is due primarily to
A) cell division at the shoot apical meristem.
B) cell elongation directly below the shoot apical meristem.
C) cell division localized in each internode.
D) cell elongation localized in each internode.
E) cell division at the shoot apical meristem and cell elongation directly below the shoot apical meristem.
D) cell elongation localized in each internode.
A mutation allows only A gene activity in a developing flower. Which flower part(s) will develop in this plant?
A) sepals
B) petals
C) stamens
D) carpels
E) both sepals and petals
A) sepals
ONACMNIMIOTUC
COMMUNICATION
________ is to xylem as ________ is to phloem.
A) Sclerenchyma cell; collenchyma cell
B) Apical meristem; vascular cambium
C) Vessel element; sieve-tube member
D) Cortex; pith
E) Vascular cambium; cork cambium
C) Vessel element; sieve-tube member
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 type of cells are they?
A) parenchyma
B) xylem
C) endodermis
D) collenchyma
E) sclerenchyma
A) parenchyma
The following question is based on parts of a growing primary root.
I. root cap
II. zone of elongation
III. zone of cell division
IV. zone of cell maturation
V. apical meristem
31) Which of the following is the correct sequence from the growing tips of the root upward?
A) I, II, V, III, IV
B) III, V, I, II, IV
C) II, IV, I, V, III
D) IV, II, III, I, V
E) I, V, III, II, IV
E) I, V, III, II, IV
62) The innermost layer of the root cortex is the
A) core.
B) pericycle.
C) endodermis.
D) pith.
E) vascular cambium.
C) endodermis.
NPALMTIU
PLATINUM
Choose the option that best describes the relationship between the cell wall thickness of parenchyma cells versus sclerenchyma cells.
A) The cell walls of parenchyma cells are thinner than those of sclerenchyma cells.
B) The cell walls of parenchyma cells are thicker than those of schlerenchyma cells.
C) The cell walls of both types of cells are roughly equal.
D) The thickness of the cell walls for both types of cells is too variable for a comparison to be made.
A) The cell walls of parenchyma cells are thinner than those of sclerenchyma cells.
Water is most likely to enter a mesophyll cell
A) as a gas.
B) as a liquid.
C) covalently bound to sugars.
D) coupled to ion transport.
E) via endocytosis.
B) as a liquid.
A person working with plants may reduce the inhibition of apical dominance by auxin via which of the following?
A) pruning shoot tips
B) deep watering of the roots
C) fertilizing
D) treating the plants with auxins
E) feeding the plants nutrients
A) pruning shoot tips
Which of the following would not be seen in a cross-section through the woody part of a root?
A) sclerenchyma cells
B) parenchyma cells
C) sieve-tube elements
D) root hairs
E) vessel elements
D) root hairs
NICNTETON
CONTINENT
Which cells are no longer capable of carrying out the process of DNA transcription?
A) tracheids
B) mature mesophyll cells
C) companion cells
D) meristematic cells
E) glandular cells
A) tracheids
Which of the following cell types is least likely to be capable of cell division?
A) mesophyll cell in a developing leaf
B) parenchyma cell 2 mm from the tip of a root
C) parenchyma cell in a dormant axillary bud
C) parenchyma cell in a dormant axillary bud
What tissue makes up most of the wood of a tree?
A) primary xylem
B) secondary xylem
C) secondary phloem
D) mesophyll cells
E) vascular cambium
B) secondary xylem
As a youngster, you drive a nail in the trunk of a young tree that is 3 meters tall. The nail is about 1.5 meters from the ground. Fifteen years later, you return and discover that the tree has grown to a height of 30 meters. About how many meters above the ground is the nail?
A) 0.5
B) 1.5
C) 3.0
D) 15.0
E) 28.5
B) 1.5
ETRONIVNMNE
ENVIRONMENT