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In the spring,before the leaves come out,maple trees are often tapped to collect sap to make syrup.The sugars were stored in the wood of the tree as starch and then released as temperatures rise above freezing in late winter.Which of the following tissues would contain the starch over the winter?


A) parenchymal tissue
B) xylem
C) roots
D) collenchyma tissue
E) phloem

F) D) and E)
G) None of the above

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The primary root of many eudicots that enlarges and persists throughout the life of the plant is a


A) fibrous root.
B) stolon.
C) companion root.
D) rhizome.
E) taproot.

F) A) and D)
G) A) and E)

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The main vegetative parts of plants include


A) fruits, flowers, and leaves.
B) flowers and fruits only.
C) roots, flowers, and stems.
D) roots, stems, and leaves.
E) stems, roots, flowers, leaves, and fruits.

F) None of the above
G) A) and B)

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The primary organ of photosynthesis in a plant is the


A) stem.
B) chlorophyll.
C) leaf.
D) bark.
E) stomata.

F) C) and E)
G) B) and E)

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In woody plants,the vascular cambium produces xylem and the cork cambium produces phloem.

A) True
B) False

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Where would you expect to find sapwood in a cross section of a tree trunk?


A) in the center
B) in the periderm
C) just under the bark
D) in the bark
E) in the roots

F) D) and E)
G) B) and D)

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The type of plant cell that provides support without interfering with growth and is familiar as the "strings in celery" is a _____ cell.


A) guard
B) sclerenchyma
C) parenchyma
D) sieve tube
E) collenchyma

F) B) and D)
G) A) and B)

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You drive a nail into a tree that is 10 feet tall,and come back 10 years later.The tree is now 30 feet tall,but the nail is the same distance from the ground.This is because the tree grows up from the


A) node.
B) root tip.
C) lateral meristem.
D) intercalary meristem.
E) apical meristem.

F) B) and E)
G) A) and E)

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After bringing a small plant into the biology lab,you prepare microscope slides of the shoot.Near the tip of the shoot,you observe a dense patch of cells that seem to be actively dividing in a way that would cause the shoot to continue growing in length.The patch of cells is the


A) apical meristem.
B) vascular bundle.
C) intercalary meristem.
D) lateral meristem.
E) tracheid.

F) D) and E)
G) A) and E)

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Tendrils are


A) structures in some carnivorous plant leaves, such as the Venus Flytrap, that trigger the leaves to close on insects.
B) the central, supporting stalk of a compound leaf.
C) starch-storing specialized roots, such as carrots.
D) specialized stems that grow across the ground, and reproduce shoots and roots asexually.
E) specialized stems that coil and provide springy attachment for climbing.

F) B) and E)
G) D) and E)

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If a plant exhibits determinate growth,the plant


A) produces auxiliary roots to help stabilize the plant.
B) produces seeds only at one time during its life.
C) continues to grow until the environment determines that it cannot.
D) stops growing when the plant reaches its mature size.
E) sends out tendrils to support the plant.

F) C) and D)
G) A) and C)

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In the spring,before the leaves come out,maple trees are often tapped to collect sap to make syrup.The sugars were stored in the wood of the tree as starch and then released as temperatures rise above freezing in late winter.The resulting sucrose is released into the vessels that transport water.Which of the following would a person tap to collect sap from a maple tree?


A) collenchyma tissue
B) roots
C) xylem
D) parenchymal tissue
E) phloem

F) B) and E)
G) B) and D)

Correct Answer

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If a plant exhibits a pattern of indeterminate growth,it stops growing when it reaches mature size.

A) True
B) False

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The pair of cells that surround each stoma and control its opening and closing are


A) pith cells.
B) sieve tube cells.
C) guard cells.
D) vascular cells.
E) companion cells.

F) A) and B)
G) None of the above

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The source of a plant's new cells among the tissues are its


A) vascular bundles.
B) meristems.
C) stomata.
D) cortex in the stems and roots.
E) tracheid tissues.

F) None of the above
G) B) and E)

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The main phloem conducting cells are


A) companion cells.
B) tracheids.
C) sieve tube elements.
D) stomata.
E) vessel elements.

F) A) and C)
G) A) and E)

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The tissue that produces cells to thicken a root or stem is the


A) tracheid.
B) intercalary meristem.
C) lateral meristem.
D) vascular bundle.
E) apical meristem.

F) A) and E)
G) A) and B)

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One way to kill a tree is to girdle it by cutting a groove a centimeter into the bark all around the trunk of the tree.The tree will typically survive that growing season,but will die over the winter.Which of the following is the best explanation for this observation?


A) Cutting the bark allows access to pathogens that kill the tree.
B) The xylem was cut, so water and nutrients cannot be taken up to the leaves.
C) The phloem was cut, so water and nutrients cannot be taken up to the leaves.
D) The phloem was cut, so sugars cannot be transported to the roots.
E) The xylem was cut, so sugars cannot be transported to the roots.

F) A) and E)
G) A) and C)

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A collective term for all plant tissues outside the vascular cambium is


A) leaf.
B) cork cambium.
C) mesophyll tissue.
D) wood.
E) bark.

F) D) and E)
G) A) and E)

Correct Answer

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Root hairs greatly increase the absorptive surface area of a root.

A) True
B) False

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