Algae: Uses and Importance

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Which of the following flagellates causes African sleeping sickness in humans?

Trichomonas vaginalis

Giardia intestinalis

Plasmodium spp.

Trypanosoma brucei (correct)

What is the characteristic motion of flagella?

Pendulum-like motion

Circular motion

Wavelike motion (correct)

Pulsating motion

Which of the following protozoa lack pseudopodia, flagella, or cilia?

Flagellates

Ciliates

Sporozoa (correct)

Amoeboids

What is the disease caused by the flagellate Giardia intestinalis?

Giardiasis Signup and view all the answers

Which of the following is a vector for transmitting malarial parasites?

Female Anopheles mosquitoes Signup and view all the answers

In which areas of the world is malaria commonly found?

In many areas of the world, but not in the United States Signup and view all the answers

What is the main difference between the structure of fungi and bacteria?

Fungi are eukaryotic, while bacteria are prokaryotic Signup and view all the answers

What is the term for the mass of intertwined filaments in fungi?

Mycelium Signup and view all the answers

Which type of fungi have hyphae with cytoplasm divided into cells by cross-walls?

Septate fungi Signup and view all the answers

How are sexual spores produced in fungi?

By the fusion of two gametes Signup and view all the answers

What is the main characteristic of aseptate hyphae?

The presence of multiple nuclei Signup and view all the answers

How are fungi classified taxonomically?

According to the type of sexual spore they produce Signup and view all the answers

What percentage of algae is made up of oil?

50% Signup and view all the answers

What is the primary source of agar used in laboratory culture media?

Red marine algae Signup and view all the answers

What is the name of the disease caused by the Prototheca genus of algae?

Protothecosis Signup and view all the answers

What type of system can Prototheca algae enter and cause a debilitating infection?

Lymphatic system Signup and view all the answers

What is the primary issue caused by algae in water systems?

Clogging filters and pipes Signup and view all the answers

In which kingdom of the Five Kingdom System of Classification are algae and protozoa classified?

Protista Signup and view all the answers

What is the process by which an ameba moves?

Ameboid movement Signup and view all the answers

Which type of protozoan is the most complex?

Ciliated protozoa Signup and view all the answers

What is the function of lysosomes in the process of digestion in amebae?

To release digestive enzymes Signup and view all the answers

What is the mode of transmission of Balantidium coli to humans?

Contaminated water Signup and view all the answers

Which type of protozoan is characterized by the presence of whiplike flagella?

Flagellated protozoa Signup and view all the answers

What is the function of the basal body in flagellated protozoa?

To anchor the flagellum Signup and view all the answers

What is the primary source of food for fungi?

Dead and decaying organic matter Signup and view all the answers

What is unique about the cell walls of fungi?

They contain chitin Signup and view all the answers

What is the role of fungi in nature?

Decomposers of organic matter Signup and view all the answers

What is a common mistake people make when categorizing fungi?

Classifying them as plants Signup and view all the answers

What is an example of a product that relies on fungi?

Penicillin Signup and view all the answers

What would be a consequence of a world without saprophytes like fungi?

Accumulation of dead plant and animal matter Signup and view all the answers