chapter 29

Question 1

single-celled eukaryotes are

Answer 1

protists

Question 2

which features set most of the members of protists 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

which is an example of an alga?

Answer 5

diatoms

Question 6

which protist is NOT correctly linked to the type of movement it shows?

Answer 6

euglena-pseudopod

Question 7

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

Answer 7

amoeba proteus

Question 8

the kingdom ___ are characterized by having filaments called hyphae that are used to absorb nutrients

Answer 8

fungi

Question 9

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

Answer 9

fungi

Question 10

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

Answer 10

saprotrophs

Question 11

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

Answer 11

saprotrophs

Question 12

___ are mostly saprotrophic decomposers that assist in recycling of nutrients in ecosystems

Answer 12

fungi

Question 13

in what way are fungi like heterotrophic bacteria?

Answer 13

they are both heterotrophic and play an important role in ecosystems

Question 14

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 14

fungal cell walls contain chitin rather than cellulose

Question 15

fungi are NOT photosynthetic because they lack

Answer 15

chloroplasts

Question 16

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

Answer 16

a conidia

Question 17

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

Answer 17

a hypha

Question 18

when the cap of an average gilled mushroom is cut off and shaven, a cloud of powdery material is released. What is the material that was released?

Answer 18

spores

Question 19

amoebae

Answer 19

have pseudopodia, a nucleus, and are heterotropic

Question 20

diatoms

Answer 20

are unicellular algae with glassy cell walls

Question 21

euglena

Answer 21

is an excavate and has an eyespot

Question 22

lichens

Answer 22

are in a symbiotic relationship between an alga and fungus

Question 23

the organism represented in the above image

Answer 23

is an excavate, is in the genus Euglena, is a flagellate