Bs1007 Prac 1

Front 1

Freshwater protists

Back 1

Amoeba, euglena, paramecium

Front 2

Amoeba

Back 2

Single-celled protist.

Front 3

Define protists

Back 3

Paraphyletic. Simple organisms, which cannot be put into other kingdoms. Eukaryotes

Front 4

Do protists need water

Back 4

Yes. Found in moist habitats including water, soil, decaying organics or in plants and animals.

Front 5

Marine protists

Back 5

Forums and radiolarians

Front 6

Protists that live inside other organisms

Back 6

Babesoa, trichonympha

Front 7

Can protists move?

Back 7

Yes using pseudopodia, flagella or cilia

Front 8

Difference between eukaryotes and prokaryote

Back 8

Eukaryotes have nucleoid and circular DNA.

Prokaryote have nucleus, organelles and linear dna.

Both have cells, cell membranes and ribosomes

Front 9

Define heterotrophic

Back 9

Eats other organisms

Front 10

Define autotrophic

Back 10

Produces own food

Front 11

What protist is both hetero and autotrophic

Back 11

Euglena

Front 12

Define phagotroph

Back 12

A heterotrophic protist that eats by pulling food into phagosomes, or food vacuoles. Lysosomes fuse with food vacuoles, introducing enzymes that digest it. Digested molecules absorbed across membrane and into organism.

Front 13

Phagosomes

Back 13

Food vacuoles

Front 14

define pseudopodia

Back 14

False feet . Protist movement.

Front 15

How to amoeba move

Back 15

Pseudopodia. Hyaline cap allows endoplasm to flow through and push pseudopodium forward

Front 16

Define hyaline cap

Back 16

Clear space at edge of pseudopodium when forming. Endoplasm flows through here to push pseudopodium forward.

Front 17

Fc

Back 17

G

Front 18

What does a contractile vacuole do

Back 18

It expels excess liquids after intake, ie in amoebas

Front 19

How do amoebas respire

Back 19

Oxygen in water is diffused across amoeba membrane and converted into CO2

Front 20

How do amoebas respire

Back 20

Oxygen in water is diffused across amoeba membrane and converted into CO2

Front 21

How to euglena eat- are they autotrophic?

Back 21

Photosynthesis. Both hetero and auto.

Front 22

Can euglena move?

Back 22

Yes, with flagella. Moves with light

Front 23

What was used to slow euglena movement on the slide

Back 23

Methyl cellulose

Front 24

Define pellicle

Back 24

Tough, flexible covering around protists such as euglena

Front 25

Define flagella

Back 25

Long, whip-like strand

Front 26

Define reservoir in a euglena

Back 26

Depression at base of flagellum

Front 27

Define stigma in euglena

Back 27

Light-sensitive structure

Front 28

Eat are the animal characteristics of euglena

Back 28

Flagella

Front 29

Paramecium

Back 29

Freshwater, protists, covered with cilia.

Front 30

Define cilia

Back 30

Short, hair-shaped organelles in a protein coat called pellicle

Front 31

Function of pellicle

Back 31

Helps transmit force of beating fro over by along whole surface of euglena

Front 32

Macronucleus

Back 32

One of the nuclei in paramecium, operates cell activities

Front 33

Micronucleus

Back 33

One of the nuclei in paramecium, used for reproduction

Front 34

How do paramecium feed

Back 34

Intake of microorganisms and some water via oral groove

Front 35

Movements of paramecium

Back 35

Move inwards and outwards

Front 36

Forams

Back 36

Amoeboid marine protozoa that secrete calcareous, chambered test. Can be benthic or planktonic

Front 37

Do forams move

Back 37

Yes, with pseudopodia

Front 38

Radiolaria

Back 38

Marine. Siliceous tests, often spiny. Pelagic. Marine oozes when dead.

Front 39

Commensalism

Back 39

Both members benefit but both can be independent

Front 40

Mutualism

Back 40

Both members benefit and can't live independently

Front 41

Parasitism

Back 41

One member benefits at expense of the other

Front 42

Trichonympha

Back 42

Found in intestines of termites. Symbionts with termites

Front 43

Describe symbiosis between termites and trichonympha

Back 43

Termites eat wood, mainly cellulose, but can't digest. Trichonympha use phagocytosis to ingest cellulose. They break down the cellulose and feed the leftover Carbon to the termite.

Front 44

Do trichonympha move?

Back 44

Yes, with flagella.

Front 45

Reproduction of trichonympha

Back 45

Sexual and asexual

Front 46

Babesia

Back 46

Cause anaemia in host. A tick bites a dog and releases into dogs bloodstream.