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


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

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

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Apoptosis is Greek for "dropping off" and refers to the programmed death of cells that attach the petiole to the stem.When these cells die in the fall,the leaves drop.Cells in which part of the plant are undergoing apoptosis?


A) lateral meristem only
B) apical meristem only
C) all types of meristem
D) leaf
E) node

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

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During photosynthesis in a leaf,sugars are loaded into the sieve tube by _____ followed by ______ to increase the pressure.


A) osmosis,facilitated diffusion
B) facilitated diffusion,osmosis
C) gravity,active transport
D) active transport,osmosis
E) osmosis,gravity

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

Correct Answer

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In many parts of the Everglades in Florida,excessive irrigation is lowering water levels and allowing salt water to enter the normally freshwater swamps.Why is this a problem for plants that have adapted to life in these swamps?


A) The salt competes with minerals for uptake by the plants,limiting their growth.
B) Salts bind to nitrogen,preventing it from being taken up.
C) The plants cannot move sugars down the xylem if there is salt outside of the roots pulling water out.
D) Photosynthesis is inhibited by salt.
E) The plant roots cannot take up water if the soil salt concentration is high.

F) D) and E)
G) All of the above

Correct Answer

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Carbon,hydrogen,and oxygen account for only about 50% of the dry weight of a plant.

A) True
B) False

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Which of the following best describes a compound leaf?


A) multiple blades attached to a single petiole
B) a single blade attached to a petiole
C) a single leaflet attached to a petiole
D) multiple leaflets attached to a single petiole

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

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The cohesion-tension theory explains how water moves within a plant.

A) True
B) False

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A tomato,squash,or bean would be considered a fruit for which reason?


A) They contain seeds from a flowering plant.
B) They were produced by a flowering plant.
C) They can have a color other than green.
D) They grow above the grounD.
E) They can be eaten raw.

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

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Water is pulled from a plant's roots to its leaves by transpiration.

A) True
B) False

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Carnivorous plants exist only in science fiction.

A) True
B) False

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The ________________ transport(s) dissolved organic compounds such as sugars from the leaves throughout the plant.


A) phloem
B) guard cells
C) xylem
D) epidermis
E) stomata

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

Correct Answer

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Soybeans will have several hundred Rhizobium nodules.A study in Minnesota found that soybeans grown without P2O5 fertilizer produced 23.0 bushels per acre,while adding 23 lbs of P2O5 per acre gave a yield of 37 bushels per acre.What is the best explanation for this observation?


A) Rhizobium cannot produce PO4,so you need to add fertilizer that contains P.
B) Rhizobium produces NH4+,so you don't need fertilizer that contains N.
C) Rhizobium produces PO4 and NH4+,so you don't need any fertilizer.
D) Rhizobium produces PO4,so you don't need P-containing fertilizer.
E) Rhizobium cannot produce NH4+,so you need to add fertilizer that contains N.

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

Correct Answer

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If a plant exhibits determinate growth,the plant


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

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

Correct Answer

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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


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

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

Correct Answer

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"P" is the chemical symbol for


A) nickel.
B) potassium.
C) plutonium.
D) phosphorus.
E) copper.

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

Correct Answer

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Which letter corresponds to a nonvegetative part of the plant?


A) H
B) C
C) G
D) B
E) D

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

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In the section "Investigating Life: The Hidden Cost of Traps",what is the cost of being a carnivorous plant?


A) reduced photosynthesis
B) reduced respiration
C) reduced mobility
D) reduced nutrients
E) reduced water

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

Correct Answer

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Most carnivorous plants use their prey as a primary source of


A) nitrogen.
B) energy.
C) carbon.
D) magnesium.
E) potassium.

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

Correct Answer

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On a hot sunny day,which of the following would help protect a plant from water loss?


A) both cuticle and stomata
B) cuticle only
C) stomata only
D) both cuticle and phloem
E) both phloem and stomata

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

Correct Answer

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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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