Exam 22: The Algae

Agar is derived from ________ ________ and is used as a growth medium for microorganisms.

Anatoxin-a is used in research on which of the following?

Chlorophyll a and b occur in all divisions of algae but not the Cyanobacteria.

All of the following are genera being studied for the purpose of biofuel production except one.Choose the exception.

Molecular evidence indicates that the algae are polyphyletic and represent several independent evolutionary lines.

What organ is affected by the toxins produced by Microcystis aeruginosa?

Which of the following is a common component of ice cream and toothpaste?

The unicellular algae that cause "Red Tides" are known as ________.

The ancestors of this organism first appeared in the fossil record about 3.5 billion years ago and has phycobillin accessory pigments.

Compounds isolated from Amphidinium have shown promise as which of the following?

The genus Pfiesteria in the Division Chlorophyta is capable of forming toxic metabolites.

In some cases,the diploid stage is only seen in the zygote.

Instead of a rigid cell wall,a proteinaceous pellicle occurs on organisms in the Division ________.

Depletion of oxygen by algal blooms can actually cause the "death" of an entire ecosystem.

All of the following correctly pair up an organism with a unique structure or compound it possesses except one.Choose the exception.

Which of the following high-protein "alga" was cultivated by the Aztecs and is a traditional food in Chad?

Their high production of ________ make microalgae valuable for the production of biofuel.

Dinoflagellates cause ciguatera poisoning,a type of food poisoning with bizarre neurological symptoms.

The glass-like cell wall of diatoms is called a frustule.

Diatoms,in the division Bacillariophyta,are mainly unicells surrounded by a silicon-based wall consisting of two halves,called a(n)________.