Chapter 29

Question 1

Single-celled eukaryotes are

Answer 1

Protists

Question 2

Which features set most of the members of protista apart from the rest of the kingdoms?

Answer 2

unicellular and microscopic

Question 3

The ____ algae are thought to be closely related to the first plants because they share most of the characteristics of plants.

Answer 3

green

Question 4

Members of which genus of algae are found in ponds and have chloroplasts that are arranged in a spiral?

Answer 4

Spirogyra

Question 5

What is an example of an alga?

Answer 5

diatoms

Question 6

Paramecium

Answer 6

cilia

Question 7

ciliates

Answer 7

cilia

Question 8

amoeboids

Answer 8

pseudopodia

Question 9

Which of the following organisms move about by means of pseudopodia?

A. trypanosome
B. Amoeba proteus
C. Chlamydomonas
D. Paramecium caudatum

Answer 9

B. Amoeba proteus

Question 10

The kingdom ____ are characterized by having filaments called hyphae that are used to absorb nutrients.

Answer 10

Fungi

Question 11

Molds (except slime and water molds) and mushrooms belong to the kingdom

Answer 11

Fungi

Question 12

An organism that will feed on dead plants, animals, and microbes are called

Answer 12

saprotrophs

Question 13

____ are organisms that break down dead organic matter in order to absorb the nutrient molecules.

Answer 13

saprotrophs

Question 14

____ are mostly saprotrophic decomposers that assist in recycling of nutrients in ecosystems.

Answer 14

Fungi

Question 15

In what way are fungi like heterotrophic bacteria?

Answer 15

They are both heterotrophic and play an important role in ecosystems.

Question 16

At one time, biologists thought that fungi were merely forms of plants that had lost their chlorophyll and had returned to saprotrophy to gain food. Why is this no longer considered a solid theory?

Answer 16

Fungal cell walls contain chitin rather than cellulose.

Question 17

Fungi are NOT photosynthetic because they lack

Answer 17

chloroplasts

Question 18

A chain of asexual spores produced by a sac fungus is called

Answer 18

a conidia.

Question 19

The mycelium is a mesh of filaments, each of which is called

Answer 19

a hypha.

Question 20

When the cap of an average gilled mushroom is cut off and shaken, a cloud of powdery material is released. The material released are

Answer 20

spores.

Question 21

Amoebae have…

Answer 21

have pseudopodia, have a nucleus, are heterotrophic.

Question 22

Diatoms

Answer 22

are unicellular algae with glassy cell walls

Question 23

Euglena

Answer 23

is an excavate, has an eyespot.