Protist Study Guide

Name: 

Modified True/False
Indicate whether the statement is true or false.  If false, change the identified word or phrase to make the statement true.

The kingdom Protista contains the eukaryotes that are not plants, animals, or fungi. _________________________

Sexual reproduction with spores evolved in protists. _________________________

Tissues, organs, and organ systems evolved in unicellular protists. _________________________

Sexual reproduction allows Chlamydomonas to delay development of new organisms until environmental conditions are favorable. _________________________

Amoebas move by means of pseudopodia. _________________________

Diatoms are the only type of protists with single shells. _________________________

Paramecium takes in food through its contractile vacuole. _________________________

Cellular slime molds form a mass of cytoplasm that has many nuclei. _________________________

Protists have an important effect on humans because they cause disease. _________________________

Malaria is caused by the protist Plasmodium and is spread by the bite of certain fleas. _________________________

Carrageenan is a product made by protists that is used to flavor many food products. _________________________

Multiple Choice
Identify the choice that best completes the statement or answers the question.

Which of the following is not true about some or all protists?

The kingdom Protista does not include

Which of the following characteristics did not evolve in the Kingdom Protista?

sexual reproduction : diversity ::

Eukaryotes that lack the features of animals, plants, or fungi are classified in the kingdom

You have been given an unknown organism to identify. You find that it is unicellular and has a cell wall. Which of the following must it also have?

When Chlamydomonas reproduces sexually, it divides by mitosis, producing

Zoospores are

The haploid, gamete-producing phase in the life cycle of some multicellular protists is known as the

The marine green alga Ulva reproduces sexually by

Pseudopodia are used for

Amoebas capture food by

When an individual diatom gets too small because of repeated division, it

Algae are

Red algae

Euglenoids are examples of protists that

dinoflagellates : flagella ::

The process in which two Paramecia come together to exchange parts of their genetic material is called

Refer to the illustration above. Excess water in the body of the Paramecium is forced back out by the structure labeled

Refer to the illustration above. The structure that contains the cell’s chromosomes is labeled

Refer to the illustration above. Structure C is the

Refer to the illustration above. The structure that controls routine cellular functions is labeled

Funguslike protists reproduce by releasing

Giardiasis is a disease that is spread

Chagas disease is spread by

Which of the following is not a human disease caused by a protist?

giardiasis : contaminated water ::

The protist that causes malaria reproduces in the

Malaria is caused by several species of

The stage in the life cycle of Plasmodium in which it lives in mosquitoes and is injected into humans is called the

Symbiotic protists live in all of the following organisms except

Protists that play an important role in aquatic food webs are called

The evolution of the plant kingdom can be inferred by studying

A mass of cytoplasm that has many nuclei is a(n)

A protist that almost destroyed the entire potato crop in Ireland in 1846 is a

A downy mildew gets nutrients by

When an algal bloom dies, the bacteria that decompose the algae

A protist used by scientists to study cell movement and cell signaling is a

Agar is a product used to grow bacteria. Agar comes from

Completion
Complete each statement.

Two important features that evolved in the protists were multicellularity and sexual reproduction with the production of ____________________.

The evolution of ____________________ allowed single-celled organisms to perform many functions at the same time.

When ______________________________ evolved, protists could become genetically diverse.

Although protists are diverse, they are all ____________________.

Refer to the illustration above. Arrow B is pointing to a ____________________ in the life cycle.

Refer to the illustration above. Arrow A is pointing to ____________________ in the life cycle.

According to the illustration above, Chlamydomonas reproduces both sexually and ____________________.

Some protists undergo sexual reproduction only at times of environmental ____________________.

Ulva is characterized by two distinct multicellular phases: a diploid, spore producing phase called the ____________________ generation and a haploid, gamete-producing phase called the ____________________ generation.

Refer to the illustration above. The organism shown in A moves and obtains food by means of ____________________.

Refer to the illustration above. The organism shown in C moves by means of ____________________.

Refer to the illustration above. The organism shown in B moves by means of ____________________.

Some amoeboid protists have porous shells called ____________________.

____________________ have double shells that resemble small boxes with lids.

The large brown algae that grow along coasts are called ____________________.

Protists that are strict photoautotrophs are called ____________________.

Poisonous “red tides” are caused by population explosions of ____________________.

Brown algae are the only algae that form more than one kind of ____________________.

Some protists have ____________________ that contain light-sensitive pigments.

____________________ disease is a protist-caused disease that is transmitted by kissing bugs.

Disease-causing protists are transmitted mainly by insects or by contaminated ____________________ and ____________________.

The stage of Plasmodium that infects the liver is called the ____________________; the second stage of the Plasmodium life cycle, which infects red blood cells, is called the ____________________.

Plantlike protists produce ____________________, which allows most forms of life to live on Earth.

____________________ are related to green algae and are thought to have evolved from them.

Funguslike protists resemble fungi in that they reproduce with ____________________ and they ____________________ nutrients from their environment.

Cellular slime molds usually exist as single-celled amoebas, but they form ____________________ and release ____________________ when food or water is scarce.

A water mold caused the great potato famine in ____________________ in 1846.

The empty shells of diatoms are used as ____________________ in cleaning agents.

Red algae produce carrageenan, which is used in the food industry to ____________________ foods such as ice cream and salad dressings.