rest of plant development and structure

33) Which of the following root tissues gives rise to lateral roots?

• A) endodermis

• B) phloem

• C) epidermis

• D) pericycle

34) 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

35) You find a plant unfamiliar to you and observe that it has vascular bundles scattered throughout the stem cross section. What do you conclude about the plant?

• A) It is probably an herbaceous eudicot

• B) It will probably get annual rings of wood.

• C) It is probably a monocot.

• D) It could be either a young eudicot or a monocot.

36) Monocot vascular bundles do not have a vascular cambium between the xylem and phloem. This means that monocots ________.

• A) are much less efficient at conducting water and sugars

• B) have very thin stems

• C) do not produce wood in annual rings

• D) cannot produce lateral shoots

37) The following question is based on the drawings of root or stem cross sections shown in the figure

Refer to the figure. A monocot stem is represented by ________

• A) I only

• B) II only

• C) III only

• D) IV only

38) The following question is based on the drawings of root or stem cross sections shown in the figure.

Refer to the figure. A woody eudicot is represented by ________

• A) II only

• B) III only

• C) IV only

• D) I and III

39) The following question is based on the drawings of root or stem cross sections shown in the figure.

Refer to the figure. A plant that is at least three years old is represented by ________

• A) I only

• B) II only

• C) III only

• D) IV only

40) 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) endodermis

• C) collenchyma

• D) sclerenchyma

41) The veins of leaves are ________.

I) composed of xylem and phloem

II) continuous, with vascular bundles in the stem and roots

III) finely branched to be in close contact with photosynthesizing cells

• A) only I

• B) only II

• C) only III

• D) I, II, and III

42) The following diagram is of a cross section of a plant leaf. Use the diagram to answer the question.

The main function associated with structure X is ________.

• A) absorption of carbon dioxide

• B) retention of water

• C) collection of light

• D) release of carbon dioxide