Make a Flower LabASIM Biology

Biology COS Objective 10

IntroductionIn this lab, we will be studying angiosperms. Angiosperms are vascular plants (have water and nutrient conducting structures) that produce flowers, which contain the plant’s reproductive organs.

Within the flower, seeds will be produced.In angiosperms, seeds are enclosed in a structure called the ovary, which will mature into a fruit.

There are four major floral parts:

a corolla -the collective name for the petals, which are above the sepals and are usually brightly colored and sometimes scented to attract pollinators

a calyx -collective name for the sepals, which are the leaf-like structures at the flowers base to protect the developing bud

stamen(s) - the male portion of a flower

pistil(s) - the female portion of a flower

Parts of a Flower

http://urbanext.illinois.edu/gpe/case1/c1facts2d.html

Monocots1 cotyledon

Floral parts in multiples

of 3’s

Parallel venation pattern

in leaves

Vascular bundles

scattered in stem

Fibrous root

Examples: grasses, sedges,

lilies, orchids and onions.

http://waynesword.palomar.edu/images/monocot3.gif

Dicots

http://waynesword.palomar.edu/images/monocot3.gif

For the next few slides, view the pictures and decide if

the flower shown is a monocot or a dicot!

Monocot or Dicot?

http://www.hcs.ohio-state.edu/mgonline/botany/gro04/04gro04a.htm

Monocot or Dicot?

http://www.hcs.ohio-state.edu/mgonline/botany/gro04/04gro04a.htm

Answer: Dicot

Monocot or Dicot?

http://www.agen.ufl.edu/~chyn/age2062/OnLineBiology/OLBB/www.emc.maricopa.edu/faculty/farabee/BIOBK/monocot_flower.gif

Monocot or Dicot?

http://www.agen.ufl.edu/~chyn/age2062/OnLineBiology/OLBB/www.emc.maricopa.edu/faculty/farabee/BIOBK/monocot_flower.gif

Answer: Monocot

Monocot or Dicot?

http://www.kew.org/science/directory/teams/MonocotsI/images/MonocotsI.jpg

Monocot or Dicot?

http://www.kew.org/science/directory/teams/MonocotsI/images/MonocotsI.jpg

Answer: Monocot

Monocot or Dicot?

http://www.agen.ufl.edu/~chyn/age2062/lect/lect_15/22_68B.GIF

Monocot or Dicot?

http://www.agen.ufl.edu/~chyn/age2062/lect/lect_15/22_68B.GIF

Answer: Dicot

Monocot or Dicot?

http://www.backyardnature.net/ruellia.jpg

Monocot or Dicot?

http://www.backyardnature.net/ruellia.jpg

Answer: Dicot

Let’s review the parts of a flower again. Also, see if you can identify some monocots

and dicots.(click below for video)