Ch. 8 Marine Plants

Algae usually are included among the Protista. Some biologists, however, place them instead in: 


• Kingdom Animalia.


• Kingdom Prokaryote

• Kingdom Fungi.


• Kingdom Archaea

• Kingdom Plantae

Algae and many bacteria are primary producers. In contrast to the types of the bacteria that are primary producers, however, all types of algae: 


• Are photosynthetic

• Have true leaves and roots

• Are chemosynthetic

• Are unicellular

• Are prokaryotic

Macroalgae can be best differentiated from phytoplankton by the fact that macroalgae:


• Are eukaryotic

• Are mostly multicellular

• Are photosynthetic

• Have true leaves

• Have true roots

Macroalgae can be best differentiated from true plants because macroalgae: 


• Are photosynthetic.

• Are prokaryotic

• Do not have true roots, leaves, or stems.


• Lack chlorophyll

• Are mostly unicellular.

The root-like, anchoring structure of many macroalgae is called the:

• Blade

• Holdfast

• Pneumatocyst

• Thallus

• Stipe

The thallus of a macroalgae refers to its

• Anchoring structure

• Complete body

• Gas-filled bladders

• Leaf-like structures

• Stem-like part of the body.


The stem-like structure of a macroalgae such as kelp is called the

• Blade

• Holdfast

• Pneumatocyst

• Stipe

• Thallus

Which of the following groups of algae is found mostly in fresh water and on land, such that only a small number of this group are actually marine?

• Green algae

• Brown algae

• Kelps

• Red algae

• Coralline red algae.

Which of the following is true of green algae?


• They are prokaryotic

• They are exclusively marine.


• They have chlorophyll plus red pigments.


• They have true roots.

• They have pigments similar to those found in land plants.

The most complex and largest of all the macroalgae is a member of which of the following groups?


• Green algae


• Calcareous green algae


• Brown algae


• Red algae

• Coralline red algae