The Simplest Eukaryotes - Protists and Fungi

Which of the following is a characteristic of all protists?

• Unicellular

• Heterotroph

• Eukaryote

• Multicellular

The strongest evidence for the endosymbiotic origin of eukaryotic organelles is the similarity between extant prokaryotes and which of the following?

• nuclei and chloroplasts

• mitochondria and chloroplasts

• cilia and mitochondria

• mitochondria and nuclei

According to the endosymbiotic theory of the origin of eukaryotic cells, how did mitochondria originate?

• from infoldings of the plasma membrane, coupled with mutations of genes for proteins in energy-transfer reactions

• from engulfed, originally free-living aerobic prokaryotes

• by secondary endosymbiosis

• from the nuclear envelope folding outward and forming mitochondrial membranes

Which of these protists group contains species that produce potent toxins that can contaminate shellfish, and poison humans?

• red algae

• dinoflagellates

• diplomonads

• euglenids

What are the ecological importances of red and green algae?

• They can be processed into food products.

• They provide shelter for marine life.

• They can be processed into cosmetic products.

• All of the above.

Which of the following helps protists to move?

• Cilia

• Flagella

• Pseudopodia

• All of the above

Which of the following is not a characteristic of fungi?

• Heterotroph

• Autotroph

• Reproduce with spores

• Eukaryotes

Which of the following is a characteristic that most fungi have in common?

• Most fungi undergone meiosis in basidia.

• Most fungal hyphae has a single nucleus.

• Most fungi has symbioses relationship with algae.

• Most fungi absorp nutrients through hyphae.

Lichens are symbiotic associations of fungi and ___________.

• mosses

• cyanobacteria

• insect

• unicellular protists

In both lichens and mycorrhizae, what does the fungal partner provide to its photosynthetic partner?

• carbohydrates

• fixed nitrogen

• antibiotics

• water and minerals