Exam 21: The Diversity of Protists

Which protist group includes the dinoflagellates, apicomplexans, and ciliates?

The group of protistan aquatic organisms known generally as produces most of the world's oxygen.

Calcium carbonate shells and thread- like pseudopods are characteristic of

The majority of photosynthesis is carried out by phytoplankton.

Which organism caused the disease that destroyed potato crops and led to the Irish potato famine in the mid- 1800s?

Protists that lack mitochondria are

A woman develops liver inflammation, a high fever, and a severe decline in red blood cell numbers. Her blood is filled with a parasitic, single- celled organism. When asked about any recent travel, she tells the nurse about her trip to a tropical rain forest. It was a great trip except for the huge number of mosquitoes that bit her. She is probably infected with

The protists are a group that can best be defined as "any eukaryote that is not a plant, animal, or fungus."

Diplomonads have two nuclei and move via flagella.

The algae are an important source of carrageenan, which is used to thicken paints, cosmetics, and ice cream.

Some protists, such as amoebas, rely on finger- like projections called for capturing prey and moving.

The group includes brown algae and diatoms.

A protist that lives inside a host organism and absorbs nutrients from that living host is

What characteristic do the organisms in the photos share?

The process in which photosynthetic bacteria were engulfed by a large cell and formed chloroplasts is called .

By what mechanism(s) do protists reproduce?

Protists that have two nuclei are classified as

Organisms with pseudopods can surround other organisms and trap them in a for digestion.

The short, hair- like structures that propel Paramecium through the water are called

Some protists can cause sexually transmitted diseases in humans.