BIO 242 Chapter 38

Question 1

How are flowers determinant structures?

Answer 1

They cease growing once the flower and/or fruit are formed.

Question 2

What are the four kinds of floral organs? SSPC

Answer 2

Sepals, stamens, petals, carpels

Question 3

Correctly identify the structures of a flower.

Answer 3

Can I do?

Question 4

What’s the difference between complete and incomplete flowers?

Answer 4

Complete flowers have all four flower parts. Incomplete do not.

Question 5

What’s the difference between perfect and imperfect flowers?

Answer 5

Perfect flowers have both stamens and carpels. Imperfect flowers are missing either stamens or carpels.

Question 6

If a plant produces both staminate and carpellate flowers, what is it called?

Answer 6

Monoecious

Question 7

If a plant produces one type of flower (staminate or carpellate), what is it called?

Answer 7

Dioecious

Question 8

Describe the development of the embryo sac.

Answer 8

The megasporocyte in the sporangium in each ovule grows and goes through meiosis to produce 4 haploid megaspores. Only one survives and divides by mitosis 3 times to form 8 haploid nuclei. Membranes partition the cytoplasm into an embryo sac.

Question 9

What do synergid cells do?

Answer 9

Flank the angiosperm egg cell and attracts guides the pollen tube.