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Stomata


A) are usually found in the upper epidermis of a leaf.
B) are surrounded by four guard cells.
C) function for primary growth.
D) function in secondary growth.
E) allow gas exchange.

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

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The fibers that get stuck between your teeth when you eat celery are


A) sclerenchyma.
B) meristems.
C) trichomes.
D) parenchyma.
E) collenchyma.

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

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When you have waxed your car, rainfall makes very large droplets that roll around on the hood. This property where the water molecules stick together is known as


A) adhesion.
B) turgor pressure.
C) cohesion.
D) transpiration.
E) negative pressure potential.

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

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Which association is correct?


A) vessel element-phloem
B) guard cells-epidermis
C) parenchyma-vascular tissue
D) sieve-tube member-bark
E) cuticle-xylem

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

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Some plant leaves and stems are covered with hairs.

A) True
B) False

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Which statement about leaves is correct?


A) The photosynthetic mesophyll is made up of an upper spongy layer and a lower palisade layer.
B) The epidermis is covered by a waxy layer of cuticle that reduces water loss.
C) Gas exchange occurs through tiny openings in the leaf surface called trichomes.
D) Vascular tissue is arranged in a net pattern in monocots and a parallel pattern in eudicots.
E) Regulation of gas exchange through the leaf is the responsibility of the bundle sheath cells.

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

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The vascular tissue in the leaf is referred to as a


A) vascular bundle.
B) vascular cylinder.
C) vein.
D) vascular pit.
E) vascular cambium.

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

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Your task in laboratory is to find cells that have projections which function to increase surface area for absorption of water and minerals. Which of the following slides would you use to find these cells?


A) eudicot woody stem slide
B) leaf slide of monocot or eudicot
C) monocot stem slide
D) root slide showing root cap
E) root slide showing zone of maturation

F) All of the above
G) A) and B)

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The apical meristem is found in what area of a growing root?


A) epidermis
B) elongation
C) cell division
D) maturation
E) None of the answer choices is found in growing roots.

F) C) and D)
G) C) and E)

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C

Which of the following is a monocot?


A) dandelion
B) oak tree
C) maple tree
D) palm tree
E) rose

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

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What organic substance makes the walls of sclerenchyma cells tough and hard?


A) suberin
B) stomata
C) trichomes
D) cuticle
E) lignin

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

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A 15-foot tree growing in a fence row is used as a fence post to which barbed wire is stapled at a height of 5 feet. Years later, the tree is 30 feet high. The barbed wire would be


A) 5 feet high.
B) 15 feet high.
C) 20 feet high.
D) 10 feet high.

E) B) and D)
F) A) and B)

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You can tell the age of a stem by counting the bud scale scars.

A) True
B) False

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Both plants and animals have organs and tissues.

A) True
B) False

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It would be adaptive for the leaves of plants in dry areas to have more stomata than the leaves of plants in humid areas.

A) True
B) False

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The stalk that attaches a leaf blade to a stem is a(n)


A) bud scale.
B) axillary bud.
C) node.
D) internode.
E) petiole.

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

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Which of the following would be an evolutionary advantage of being "woody"?


A) minimal energy requirement to produce wood
B) tall growth allows greater leaf access to sunlight
C) less need for defense mechanisms against herbivores and parasites
D) not being as affected by varying amounts of rainfall
E) reproduction before several seasons pass

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

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B

A cross section through the zone of maturation of a root would show


A) cells of the root cap.
B) the apical meristem.
C) transport tissues.
D) greatly elongated, undifferentiated cells.
E) dividing cells.

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

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If you had a problematic hillside that continually eroded when it rained, plants with which type of roots would best solve your problem?


A) adventitious
B) taproots
C) mycorrhizal
D) fibrous
E) haustoria

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

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D

Epidermal tissue, ground tissue, and vascular tissue systems are derived from


A) sclerenchyma cells.
B) vascular cambium.
C) cork cambium.
D) apical meristem.
E) vascular bundles.

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

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