Lab 5

Question 1

phytoplankton protists?

Answer 1

Euglena
Desmids
Diatoms

Question 2

desmids characteristic

Answer 2

Cell wall of cellulose, Photosynthetic, Energy stored as starch

Question 3

diatoms characteristics

Answer 3

Cell wall of silica, Photosynthetic, Energy stored as oil

Question 4

euglena characteristics

Answer 4

No cell wall, Photosynthetic, Ingestive nutrition, Absorptive nutrition, Contractile vacuole present, Eyespot present, Flagellum present

Question 5

volvox characteristics

Answer 5

Cell wall present, Colonial, Photosynthetic, Eyespot present in certain of the cells, Flagellum present in certain of the cells, Energy stored as starch

Question 6

amoeba characteristics

Answer 6

No cell wall, Ingestive nutrition, Contractile vacuole present, Pseudopodium present, Part of Zooplankton

Question 7

stentor characteristics

Answer 7

No cell wall, Ingestive nutrition, Contractile vacuole present, Cilia present

Question 8

Trypanosoma characteristics

Answer 8

No cell wall, Absorptive nutrition, Flagellum present

Question 9

which protists are Solely chemoheterotrophs and are referred to as protozoa.

Answer 9

Trypanosomes
Ameba
Paramecium

Question 10

which protists are Solely photoautotrophs and are referred to as algae.

Answer 10

Volvox
Desmids
Diatoms

Question 11

Which of the protists is associated with fossil fuels?

Answer 11

Diatom

Question 12

Which of the protists move using flagella?

Answer 12

Euglena
trypanosomes
Volvox

Question 13

Which of the protists have a plasma membrane surrounded by a cell wall? silica or cellulose?

Answer 13

Volvox cellulose
Diatoms silica
Desmids cellulose

Question 14

Which Protists have contractile vacuoles? How is that related to where these protists live?

Answer 14

desmids
amoeba
stentor
euglena

controls the intracellular water balance by accumulating and expelling excess water out of the cell, allowing cells to survive under hypotonic stress as in pond water

Question 15

which protists are unicell, multicell, colonial?

Answer 15

colonial volvox
multi algae
unicellular paramecium, diatoms, desmids, euglena, stentor, amoeba, trypanosoma

Question 16

protists role in ecosystem

Answer 16

1. Release Oxygen
2. Basis of Aquatic Food Webs (algae)
3. Symbiosis: Mutualism Lichen, Parasitism Trypanosma

Question 17

Plankton ?

Answer 17

is composed of phytoplankton and zooplankton, which are typically tiny organisms found near the surface in aquatic environments.

Question 18

Phytoplankton

Answer 18

perform photosynthesis and are at the base of aquatic food chains.

Question 19

Zooplankton

Answer 19

: float with water current or may “swim” using flagella or cilia, but are poor swimmers so still mostly float. Includes amoebas, ciliates, and some flagellates (seen in the lab) as well as some larger organisms
Euglena are mixotrophic, and so can be part of zooplankton or phytoplankton.

Question 20

economic importance of protists

Answer 20

Protists serve as the foundation of the food chain. Protists are symbionts – having a close relationship between two species in which, one is benefited. Some protists also produce oxygen and may be used to produce biofuel. Protists are the primary sources of food for many animals.
Many protists are also commonly used in medical research.