Biology 23 Protists MCQ

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Photo depicts Earth from space.
This NASA image is a composite of several satellite-based views of Earth. To make the whole-Earth image, NASA scientists combine observations of different parts of the planet. (credit: NASA/GSFC/NOAA/USGS)

Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.

Unit 5. Biological Diversity

Chapter 23: Protists MCQ Multiple Choices Questions Quiz Test Bank

23.1 Eukaryotic Origins

23.2 Characteristics of Protists

23.3 Groups of Protists

23.4 Ecology of Protists

Quiz PDF eBook: 
Biology 23 Protists MCQ
Download Biology 23 Prokaryotes Quiz PDF eBook
14 Pages
2015
English US
Educational Materials



Sample Questions from the Biology 23 Protists MCQ Quiz

Question: What is the function of the raphe in diatoms?

Choices:

locomotion

defense

capturing food

photosynthesis

Question: Which of these protists is believed to have evolved following a secondary endosymbiosis?

Choices:

green algae

cyanobacteria

red algae

chlorarachniophytes

Question: What event is thought to have contributed to the evolution of eukaryotes?

Choices:

global warming

glaciation

volcanic activity

oxygenation of the atmosphere

Question: Which protist group exhibits mitochondrial remnants with reduced functionality?

Choices:

slime molds

diatoms

parabasalids

dinoflagellates

Question: Mitochondria most likely evolved by _____________.

Choices:

a photosynthetic cyanobacterium

cytoskeletal elements

endosymbiosis

membrane proliferation

Question: Which characteristic is shared by prokaryotes and eukaryotes?

Choices:

cytoskeleton

nuclear envelope

DNA-based genome

mitochondria

Question: Alternation of generations describes which of the following?

Choices:

The haploid form can be multicellular; the diploid form is unicellular.

The haploid form is unicellular; the diploid form can be multicellular.

Both the haploid and diploid forms can be multicellular.

Neither the haploid nor the diploid forms can be multicellular.

Question: Conjugation between two Paramecia produces ________ total daughter cells.

Choices:

2

4

8

16

Question: Protists with the capabilities to perform photosynthesis and to absorb nutrients from dead organisms are called ______________.

Choices:

photoautotrophs

mixotrophs

saprobes

heterotrophs

Question: Protists that have a pellicle are surrounded by ______________.

Choices:

silica dioxide

calcium carbonate

carbohydrates

proteins

Question: Which of these locomotor organs would likely be the shortest?

Choices:

a flagellum

a cilium

an extended pseudopod

a pellicle

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Source:  OpenStax College. Download for free at http://cnx.org/content/col16448/latest/
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