Lab 4 - Protista

Question 1

Protista

Answer 1

all eukaryotes that are not fungi, plants, and animals.

Does not represent a monophyletic group.

Question 2

Protists possess:

Answer 2

• membrane bound organelles
• membrane bound nuclei containing genome
• additional compartmentalization by internal membranes

Question 3

Photoautotrophic

Answer 3

“Algae”

not mutually exclusive from heterotrophs

Question 4

Heterotrophic

Answer 4

“Protozoans”

not mutually exclusive from phototrophs

Question 5

1. Flagella

Answer 5

a long cellular appendage(s) specialized for locomotion.

Known as flagellates.

Anterior pocket: place where one or two flagella emerge.

Mainly photoautotrophic(have chloroplasts) but can be mixotrophic or heterotrophic.

Question 6

Mixotrophic

Answer 6

Survive as a photoautotroph or heterotroph

Question 7

Heterotroph

Answer 7

eat or use others for energy.

Not self produced

Question 8

Phagocytosis

Answer 8

Engulfing of prey for energy.

Cellular eating.

Question 9

2. Cillia

Answer 9

short hair-like structures specialized for locomotion

Known as ciliates.

Characterized by: submembranous system of microtubules that may coordinate the movement of thousands of cilia.

Heterotrophic.

Question 10

3. pseudopodia

Answer 10

cellular extensions of amoeboid cells used for moving and feeding.

Mostly heterotrophic.

rhizopods(amoeba) = root-like foot.

Move by extending one pseudopodium in a particular direction, anchoring the tip and streaming cytoplasm into the pseudopodium to prepare for the next move.

Question 11

Plasmodium

Answer 11

Slime mold experiment.

simple organism that reacts to certain environmental stimuli.

on the plate is the main vegetative phase of the life cycle.

Question 12

Paramecium parts:

Answer 12

• contractile vacuole
• food vacuole
• oral groove
• micronucleus
• cilia