Biology Lab Review - Sexual Reproduction of Flowering Plants

Part 3 - The Flower - Microscopic views - KEY

Photos by Dr. Rob Bowker, Glendale Community College, Glendale, Arizona
(These photos are protected by copright and may not be reproduced without written permission.)

This is a longitudinal section through what flower part (A)?  ovary

At this stage of maturity, what would this flower part (A) usually be called?  fruit

What is B?  ovule


These photos show structure B (in the above photo) at three earlier stages of development:

Name structure A (same in all three photos).  embryo
The series of photos shows what developmental process? growth and differentiation of the embryo
Is structure A haploid, diploid, or triploid?

Name tissue B (same in all three photos).  endosperm
Is tissue B haploid, diploid, or triploid?
What is the function of tissue B?  provide nourishment for the growth of the embryo
Here is the same structure, now at a later stage of development than above:

Again, name structure A. embryo sporophyte
Structure A is contained inside a(n) ovule, which is in turn contained inside a(n) ovary.

Name the parts of structure A:
B is the radicle.
C is the stem (hypocotyl).
D are the cotyledons.
Is this a monocot or a dicot?

Name the tissue at E.  endosperm

Go to Vegetative parts of flowering plants, Part 1, Leaves
Go to Lab Review Contents Bio108
Go to Lab Review Contents Bio182