Part A True or False 1 Carpels are the megasporophylls of a

Part A:

True or False

1. Carpels are the megasporophylls of a flowering plant.

2. A complete flower consists of four types of modified leaves: sepals, petals, stamens, and carpels.

3. Flowers attract seed dispersers

4. Anthers release microspores.

5. Primary and secondary growth can occur at the same time in a tree.

Part B:

Which of the following statements best defines an ovule of a seed plant?

a.It is the structure released from anthers or pollen cones in seed plants.

b.It is a small egg in the ovary of a pistil.

c.It is the megasporangium of a seed plant, which is covered by integuments.

d.It is the female gametophyte of the seed plant.

e.It is a small egg that may be found either in the ovary of a pistil (in angiosperms) or unenclosed on cone scales of a seed cone (in gymnosperms)

Part C:

If the seed in the picture above is a angiosperm seed, identify whether each of the labeled structures is haploid, diploid, or triploid

Part D:

Indicate whether each of the following processes involves (or is involved in) primary or secondary growth.

a.Elongation of roots

b.Elongation of stems

c.Increase in girth (thickening)

d.Production of leaves

e. Production of flowers

f. Cell division in apical meristems

g. Cell division in the vascular cambium

h. Cell division in a cork cambium

		a.It is the structure released from anthers or pollen cones in seed plants.
		b.It is a small egg in the ovary of a pistil.
		c.It is the megasporangium of a seed plant, which is covered by integuments.
		d.It is the female gametophyte of the seed plant.
		e.It is a small egg that may be found either in the ovary of a pistil (in angiosperms) or unenclosed on cone scales of a seed cone (in gymnosperms)

D B A

Solution

Answers:

Part A

1. Carpels are the megasporophylls of a flowering plant. - This statement is True

2. A complete flower consists of four types of modified leaves:

sepals, petals, stamens, and carpels. - This statement is False because flower is modified stem not leaf

3. Flowers attract seed dispersers - False

seed dispersers are attracted by fruits

4. Anthers release microspores. This is True

5. Primary and secondary growth can occur at the same time in a tree. - True

Part B:

The statement C best defines an ovule of a seed plant

C. It is the megasporangium of a seed plant, which is covered by integuments.

Part C:

In the seed picture

D is embryo- it is Diploid

C is Endosperm- Triploid

B is aleurone layer- Triploid

A is seed coat- it is Diploid

Part D:

a.Elongation of roots- Primary Growth

b.Elongation of stems- Primary Growth

c.Increase in girth (thickening)- Secondary Growth

d.Production of leaves- Primary Growth

e. Production of flowers- Primary Growth

f. Cell division in apical meristems- Primary Growth

g. Cell division in the vascular cambium- Secondary Growth

h. Cell division in a cork cambium- Secondary Growth