Question 1

The type of plant cell that provides rigid support and is dead at maturity is a

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

In the section "Investigating Life: The Hidden Cost of Traps",carnivorous plants like Sarracenia purpurea are which of the following?

Accepted Answer

A)  producers and detritivores
B)  producers
C)  producers and consumers
D)  consumers
E)  detritivoresF) None of the above
G) A) and D)

Question 4

Apoptosis is Greek for "dropping off" and refers to the programmed death of cells that attach the leaf to a stem.If you cut a branch in the summer,the leaves will not fall off in the autumn.What can you conclude from this observation?

Accepted Answer

A)  The leaves are normally killed by substances that come from the trunk of the tree.
B)  The leaves must be alive to go through apoptosis.
C)  The branch does not need to get rid of leaves if it is cut off.
D)  Once cut,the branch no longer can sense what season it is in.
E)  The sap from the leaf can no longer move down the xylem to the trunk of the treE.F) A) and E)
G) A) and D)

Question 5

The concentration of solutes in most soil is lower than the concentration of solutes in root cells,so water enters the roots by

Accepted Answer

A)  hydrostatic pressure.
B)  cohesion.
C)  adhesion.
D)  hydrolysis.
E)  osmosis.F) A) and B)
G) A) and C)

Question 6

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

Accepted Answer

A)  the apical meristem only.
B)  the lateral meristem only.
C)  both the lateral and apical meristems.
D)  the root tip.
E)  the nodE.F) A) and B)
G) A) and C)

Question 7

The main vegetative parts of plants include

Accepted Answer

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

Question 8

Carbon dioxide enters a plant from the atmosphere through pores called

Accepted Answer

A)  guard cells.
B)  companion cells.
C)  sieve tubes.
D)  nodes.
E)  stomata.F) C) and D)
G) B) and E)

Question 9

The water absorption rate of a plant's roots is greatly increased by

Accepted Answer

A)  presence of many stomata only.
B)  presence of root hairs only.
C)  both association with mycorrhizal fungi and presence of root hairs.
D)  association with mycorrhizal fungi only.
E)  both presence of many stomata and root hairs.F) C) and D)
G) A) and C)

Question 10

A potato stores a lot of starch.Which of the following tissues would you expect to be most abundant in a potato?

Accepted Answer

A)  dermal tissue
B)  vascular tissue
C)  ground tissue
D)  equal amounts of ground and dermal tissue
E)  equal amounts of dermal and vascular tissueF) B) and C)
G) A) and B)

Question 11

Do most parasitic plants completely over-grow or over-harvest the host plant?

Accepted Answer

A)  Yes,then the parasitic plant produces seeds and ends its life cycle.
B)  Yes,then the parasitic plant produces tendrils which locate and feed from a new host.
C)  No,the parasitic plant receives fewer nutrients as the host plant is weakened and none when the host plant is dead.
D)  No,most host plants produce a toxin preventing the parasitic plant from reaching full growth.E) B) and C)
F) B) and D)

Question 12

The xylem and phloem are produced by the

Accepted Answer

A)  vascular cambium.
B)  sieve tube.
C)  vascular bundle.
D)  mycorrhizal fungi.
E)  companion cells.F) C) and E)
G) A) and E)

Question 13

Nutrients that an organism needs in fairly large amounts are referred to as

Accepted Answer

A)  total nutrients.
B)  macronutrients.
C)  micronutrients.
D)  solid nutrients.
E)  essential nutrients.F) All of the above
G) D) and E)

Question 14

Vegetative edible plant parts include roots,fruits,stems,and tubers.

Accepted Answer

A) True 
 B)False

Question 15

What letter corresponds to the part of the plant that supports the leaves,supplies sugar to the roots,and is located above ground?

Accepted Answer

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

Question 16

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

Accepted Answer

A)  in the center
B)  just under the bark
C)  All answers are correct.
D)  in the bark
E)  in the rootsF) A) and B)
G) D) and E)

Question 17

The products of photosynthesis move from the leaf to other parts of the plant via

Accepted Answer

A)  xylem.
B)  phloem.
C)  cortex.
D)  cortex and phloem.
E)  cortex and xylem.F) C) and E)
G) A) and B)

Question 18

The attraction of a molecule of one substance,such as water,to a molecule of another substance,such as cellulose in plant cells walls,is

Accepted Answer

A)  adhesion.
B)  hydrolysis.
C)  condensation.
D)  cohesion.
E)  evaporation.F) A) and C)
G) B) and D)

Question 19

The point at which one or more leaves attach to the stem of a plant is a

Accepted Answer

A)  petiole.
B)  internode.
C)  anther.
D)  sieve tube.
E)  nodE.F) B) and C)
G) D) and E)

Question 20

Soybeans will have several hundred Rhizobium nodules per plant and may divert 20-30 percent of their energy,generated by photosynthesis,to the nodule instead of to other plant functions when the nodule is actively fixing nitrogen.Why would the plant divert so much energy to Rhizobium?

Accepted Answer

A)  because Rhizobium produces ammonium (NH4+) 
B)  because Rhizobium produces nitrogen (N2) 
C)  because Rhizobium produces sugars
D)  because Rhizobium protects the plants from predators
E)  because Rhizobium protects the plants from parasitesF) B) and E)
G) B) and C)

Exam 21: Plant Form and Function

In the section "Investigating Life: The Hidden Cost of Traps",carnivorous plants like Sarracenia purpurea are which of the following?

Correct AnswerverifiedShow Answer

Do most parasitic plants completely over-grow or over-harvest the host plant?

Correct AnswerverifiedShow Answer

What letter corresponds to the part of the plant that supports the leaves,supplies sugar to the roots,and is located above ground?

Correct AnswerverifiedShow Answer

Nutrients that an organism needs in fairly large amounts are referred to as

Correct AnswerverifiedShow Answer

Vegetative edible plant parts include roots,fruits,stems,and tubers.

Correct AnswerverifiedShow Answer

The main vegetative parts of plants include

Correct AnswerverifiedShow Answer

The products of photosynthesis move from the leaf to other parts of the plant via

Correct AnswerverifiedShow Answer

The point at which one or more leaves attach to the stem of a plant is a

Correct AnswerverifiedShow Answer

A potato stores a lot of starch.Which of the following tissues would you expect to be most abundant in a potato?

Correct AnswerverifiedShow Answer

The attraction of a molecule of one substance,such as water,to a molecule of another substance,such as cellulose in plant cells walls,is

Correct AnswerverifiedShow Answer

Carbon dioxide enters a plant from the atmosphere through pores called

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The type of plant cell that provides rigid support and is dead at maturity is a

Correct AnswerverifiedShow Answer

The xylem and phloem are produced by the

Correct AnswerverifiedShow Answer

The concentration of solutes in most soil is lower than the concentration of solutes in root cells,so water enters the roots by

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Apoptosis is Greek for "dropping off" and refers to the programmed death of cells that attach the leaf to a stem.If you cut a branch in the summer,the leaves will not fall off in the autumn.What can you conclude from this observation?

Correct AnswerverifiedShow Answer

Soybeans will have several hundred Rhizobium nodules per plant and may divert 20-30 percent of their energy,generated by photosynthesis,to the nodule instead of to other plant functions when the nodule is actively fixing nitrogen.Why would the plant divert so much energy to Rhizobium?

Correct AnswerverifiedShow Answer

The water absorption rate of a plant's roots is greatly increased by

Correct AnswerverifiedShow Answer

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