Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Textbook Question
Chapter 21, Problem 4MC
The finger-like extensions of the cell membrane that some protists use for feeding or locomotion are called
- a. pseudopods.
- b. cilia
- c. flagella.
- d. food vacuoles.
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Students have asked these similar questions
What feature of protists allow them to survive harshenvironmental conditions?a. vegetative cellsb. planktonc. cystsd. plastidse. vacuoles
Which of the following is NOT true of protists?
Select one:
a. Some are unicellular.
b. They may be photosynthetic.
c. They are usually aerobic, though some are not.
d. They may have cell walls.
e. They may be prokaryotic.
Which of the following protist exhibit the discoid type of mitochondrial cristae?
A. trypanosoms
B. diatoms
C. oomycete
D. brown algae
Chapter 21 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 21.1 - define protist and describe the various ways in...Ch. 21.1 - What do biologists mean when they say that sex and...Ch. 21.1 - describe a scenario for the evolutionary origin of...Ch. 21.1 - describe the major effects of protists on people...Ch. 21.2 - Just as the invasive Cauterpa seaweed often...Ch. 21.2 - Cauferpa taxifolia, the invasive seaweed that...Ch. 21.2 - Is it important to stop the spread of Caulerpa?...Ch. 21.2 - list the major protist taxonomic groups and the...Ch. 21.2 - Imagine that you are a physician consulting with a...Ch. 21.2 - If you like sushi, youve probably eaten a sushi...
Ch. 21.2 - describe some examples of how members of each...Ch. 21 - The internal structure of many protists is much...Ch. 21 - Which of the following statements about protists...Ch. 21 - List the major differences between prokaryotes and...Ch. 21 - What are some important benefits and services...Ch. 21 - Prob. 2FIBCh. 21 - The harmful protist blooms known as red tides are...Ch. 21 - What is secondary endosymbiosis?Ch. 21 - Protist chloroplasts surrounded by four-layer...Ch. 21 - The organism that causes malaria belongs to which...Ch. 21 - what is the importance of dinoflagellates in...Ch. 21 - Prob. 4FIBCh. 21 - The finger-like extensions of the cell membrane...Ch. 21 - What is the major ecological role played by...Ch. 21 - Prob. 5FIBCh. 21 - Prob. 5MCCh. 21 - Which protist group consists entirely of parasitic...Ch. 21 - Prob. 6FIBCh. 21 - Which protist groups include seaweeds?Ch. 21 - Which protist groups include species that use...
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- Identify from the list below the protists that possess two flagella, are unicellular and common members of the phytoplankton A. diatoms B. dinoflagellates C. forams D. parabasalidsarrow_forwardWhich of the following characteristics is NOT one all protists share? A. mixotrophic, autotrophic and heterotrophic B. eukaryotic C. mostly unicellular D. symbiontsarrow_forwardIdentify from the list below the protists that function almost like multicellular organisms when food is depleted, forming a multicellular mass that forms fruiting bodies. A. slime molds B. oomycetes C. cercozoans D. diatomsarrow_forward
- Which statement about protists is true? a. Protists have many different metabolic lifestyles. b. Almost all protists are parasitic. c. All protists use pseudopods or cilia to locomote. d. All marine protists rid themselves of excess water by means of contractile vacuoles. e. Protists are found only in aquatic habitats.arrow_forwardWhich of the following representative protists is NOT correctly matched with respect to their locomotion? I. Paramecium:cilia IV. Dinoflagellate: flagella II. Euglena: flagella V. Vorticella: pseudopodia III. Amoeba: sporozoa 2.Effective work with the viruses depended upon the development of the A. light microscope B. ultraviolet light microscope C. dark-field microscope D. electron microscopearrow_forwardWhat genus of protists appears to contradict the statement that unicellularity restricts cell size? a. Dictyostelium b. Ulva c. Plasmodium d. Caulerpaarrow_forward
- A principle of biology is that biology affects our society. Whyare the cysts of protists important to epidemiologists, thebiologists who study the spread of disease?arrow_forwardWhich of the following statement(s) is/are TRUE? a. yeasts are unicellular fungi b. molds and mushrooms are filamentous fungi. The filaments are chains of cells called "hyphae" C. most protozoa are unicellular, animal-like members of Domain Archaea, many of which are motile and lack cell walls d. algae have historically been described as "plant-like" protists because they contain chloroplasts and cell walls e. organisms which make chlorophyll a can perform oxygenic photosynthesis f. all organisms which make chlorophyll a have chloroplasts g. Nostoc, algae and plants all make chlorophyll a and all have chloroplasts h. Nostoc, algae and plants have mitochondria which evolved from primitive endosymbiotic bacteria i. Photoautotrophs perform photosynthesis and chemoheterotrophs require pre-formed organic molecules as a source of carbon and energy j. Cyanobacteria, algae and plants are photoautotrophs. Fungi, protozoa and animals are chemoheterotrophs k. Most bacteria, all fungi, all algae…arrow_forwardYou have discovered a photosynthetic protist that lives in fairly deep water (for example, 250 m deep). To which of the following groups should this organism be classified? A. diatoms B. green algae C. red algae D. cercozoanarrow_forward
- Give an example of a protist that is:(a) a parasite of humans(b) very large and photosynthetic(c) a unicellular species with two flagella and photosynthetic(d) covered in ciliaarrow_forwardWhich of the following does not possess cilia or flagella? a.)Amoeba b.)Paramecium c.)Trypanosoma d.)Mastigamoebaarrow_forwardWhich parasitic protist evades the host immune system by altering its surface proteins with each generation? a. Paramecium caudatum b. Trypanosoma brucci c. Plasmodium falciparum d. Phytophthora infrstansarrow_forward
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