Question 1

Which of the following statements is not correct?

Accepted Answer

A) The green algae are characterized by the presence of chlorophyll a and b. 
B) Various charophyte species show biochemical and ultrastructural features that are shared with land plant but not with chlorophytes. 
C) Green algae are classified in two divisions: Chlorophyta and Charophyta. 
D) Genetic analysis from DNA sequences supports the hypothesis that the charophytes are the closest living relatives of land plants. 
E) All of the above are correct. 
A) The green algae are characterized by the presence of chlorophyll a and b. 
B) Various charophyte species show biochemical and ultrastructural features that are shared with land plant but not with chlorophytes. 
C) Green algae are classified in two divisions: Chlorophyta and Charophyta. 
D) Genetic analysis from DNA sequences supports the hypothesis that the charophytes are the closest living relatives of land plants. 
E) All of the above are correct. E

Question 2

Unlike land plants,algae lack true tissue differentiation.

Accepted Answer

A) True 
 B)False  True

Question 3

Siphonous algae have a tubular organization with no internal walls.

Accepted Answer

A) True 
 B)False  True

Question 4

You discover a single-celled organism living in a tide pool encased within a glassy wall-like shell.It has a centric shape.You have likely discovered which of the following?

Accepted Answer

A) dinoflagellate 
B) euglena 
C) cyanobacterium 
D) diatom 
E) green alga 
A) dinoflagellate 
B) euglena 
C) cyanobacterium 
D) diatom 
E) green alga

Question 5

Porphrya is also known as which of the following?

Accepted Answer

A) kombu. 
B) wakame. 
C) dulse. 
D) nori. 
E) More than one of the above are correct. 
A) kombu. 
B) wakame. 
C) dulse. 
D) nori. 
E) More than one of the above are correct.

Question 6

Which of the following is not a hydrocolloid?

Accepted Answer

A) agar 
B) alginic acid 
C) carrageenan 
D) cellulose 
E) More than one of these are not a hydrocolloid 
A) agar 
B) alginic acid 
C) carrageenan 
D) cellulose 
E) More than one of these are not a hydrocolloid

Question 7

In the life cycle of a green alga,meiosis specifically occurs in the ________.

Accepted Answer

A) gametophyte 
B) sporangia 
C) gametangia 
D) sporophyte 
E) zygote 
A) gametophyte 
B) sporangia 
C) gametangia 
D) sporophyte 
E) zygote

Question 8

Agar and carrageenan are examples of chemicals called ________ which are used as emulsifiers,stabilizers,and gelling agents.

Accepted Answer

The answer of Agar and carrageenan are examples of chemicals...

Question 9

A heterocyst is a cell specialized for which of the following functions?

Accepted Answer

A) photosynthesis 
B) nitrogen fixation 
C) sexual reproduction 
D) cellular respiration 
E) external digestion 
A) photosynthesis 
B) nitrogen fixation 
C) sexual reproduction 
D) cellular respiration 
E) external digestion

Question 10

The body of an alga is termed the ________.

Accepted Answer

The answer of The body of an alga is termed...

Question 11

The dinoflagellates appeared on earth 3.5 billion years ago.

Accepted Answer

A) True 
 B)False

Question 12

The unicellular algae that cause "red tides" belong to the Division ________.

Accepted Answer

A) Rhodophyta 
B) Bacillariophyta 
C) Chlorophyta 
D) Dinophyta 
E) Phaeophyta 
A) Rhodophyta 
B) Bacillariophyta 
C) Chlorophyta 
D) Dinophyta 
E) Phaeophyta

Question 13

How is Caulerpa taxifolia and other siphonous algae different from typical green algae?

Accepted Answer

A) They do not use chlorophyll a and b as photosynthetic pigments. 
B) They do not have a thallus. 
C) They have both zoospores and gametes in its life cycle. 
D) They are heteromorphic and heterotrophic. 
E) They are coenocytic and have a stolon. 
A) They do not use chlorophyll a and b as photosynthetic pigments. 
B) They do not have a thallus. 
C) They have both zoospores and gametes in its life cycle. 
D) They are heteromorphic and heterotrophic. 
E) They are coenocytic and have a stolon.

Question 14

Which of the following is not a contributing factor to the success of Caulerpa taxifolia?

Accepted Answer

A) tolerance of broad range of temperatures 
B) an elaborate sexual reproduction strategy 
C) rapid growth rate 
D) its inedibility 
E) All of these are contributing factors to the success of Caulerpa taxifolia. 
A) tolerance of broad range of temperatures 
B) an elaborate sexual reproduction strategy 
C) rapid growth rate 
D) its inedibility 
E) All of these are contributing factors to the success of Caulerpa taxifolia.

Question 15

Algal blooms are triggered by which of the following?

Accepted Answer

A) rapid temperature change 
B) increasing salinity 
C) decreases in oxygen 
D) nutrient enrichment 
E) increases in carbon dioxide 
A) rapid temperature change 
B) increasing salinity 
C) decreases in oxygen 
D) nutrient enrichment 
E) increases in carbon dioxide

Question 16

Based on genetic studies,the living genus of algae that most closely resembles the evolutionary ancestor of land plants is which of the following?

Accepted Answer

A) Chlamydomonas 
B) Coleochaete 
C) Microcladia 
D) Fucus 
E) Laminaria 
A) Chlamydomonas 
B) Coleochaete 
C) Microcladia 
D) Fucus 
E) Laminaria

Question 17

Invasive species usually have low reproductive rates.

Accepted Answer

A) True 
 B)False

Question 18

This dinoflagellate species is stimulated to producing toxins after consuming fish feces.The skin of fish affected by the toxin is destroyed and the affected fish die within hours after exposure to the toxin.This dinoflagellate species is classified as which one of the following species?

Accepted Answer

A) Codium fragile 
B) Karenia brevis 
C) Pfiesteria piscicida 
D) Grateloupia turuturu 
E) Anas platyrhyncus 
A) Codium fragile 
B) Karenia brevis 
C) Pfiesteria piscicida 
D) Grateloupia turuturu 
E) Anas platyrhyncus

Question 19

Which of the following statements is correct?

Accepted Answer

A) The green algae are most abundant and diverse in the oceans. 
B) Many species of green algae are used as food. 
C) Sea lettuce (Ulva spp)is toxic until cooked. 
D) Zoospores are the products of meiosis. 
E) The Cyanobacteria are prokaryotic,unlike other true algae,which are eukaryotic. 
A) The green algae are most abundant and diverse in the oceans. 
B) Many species of green algae are used as food. 
C) Sea lettuce (Ulva spp)is toxic until cooked. 
D) Zoospores are the products of meiosis. 
E) The Cyanobacteria are prokaryotic,unlike other true algae,which are eukaryotic.

Question 20

________ ________ is a product derived from the brown algae that imparts a smooth texture in both foods like icings and puddings and in industrial products like paints and hand lotions.

Accepted Answer

The answer of ________ ________ is a product derived from...

Exam 22: The Algae

Which of the following statements is not correct?

Unlike land plants,algae lack true tissue differentiation.

Siphonous algae have a tubular organization with no internal walls.

You discover a single-celled organism living in a tide pool encased within a glassy wall-like shell.It has a centric shape.You have likely discovered which of the following?

Porphrya is also known as which of the following?

Which of the following is not a hydrocolloid?

In the life cycle of a green alga,meiosis specifically occurs in the ________.

Agar and carrageenan are examples of chemicals called ________ which are used as emulsifiers,stabilizers,and gelling agents.

A heterocyst is a cell specialized for which of the following functions?

The body of an alga is termed the ________.

The dinoflagellates appeared on earth 3.5 billion years ago.

The unicellular algae that cause "red tides" belong to the Division ________.

How is Caulerpa taxifolia and other siphonous algae different from typical green algae?

Which of the following is not a contributing factor to the success of Caulerpa taxifolia?

Algal blooms are triggered by which of the following?

Based on genetic studies,the living genus of algae that most closely resembles the evolutionary ancestor of land plants is which of the following?

Invasive species usually have low reproductive rates.

This dinoflagellate species is stimulated to producing toxins after consuming fish feces.The skin of fish affected by the toxin is destroyed and the affected fish die within hours after exposure to the toxin.This dinoflagellate species is classified as which one of the following species?

Which of the following statements is correct?

________ ________ is a product derived from the brown algae that imparts a smooth texture in both foods like icings and puddings and in industrial products like paints and hand lotions.

Plants in Our Lives

The Plant Cell

The Plant Body

Plant Physiology

Plant Life Cycle: Flowers

Plant Life Cycle: Fruits and Seeds

Genetics

Plant Systematics and Evolution

Diversity of Plant Life

Human Nutrition

Origins of Agriculture

The Grasses

Legumes

Starchy Staples

Feeding a Hungry World

Stimulating Beverages

Herbs and Spices

Materials: Cloth, wood, and Paper

Medicinal Plants

Psychoactive Plants

Poisonous and Allergy Plants

Fungi in the Natural Environment

Beverages and Foods From Fungi

Fungi That Affect Human Health

Plant Ecology

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is a product derived from the brown algae that imparts a smooth texture in both foods like icings and puddings and in industrial products like paints and hand lotions.