Protazoans Euglena

Question 1

Euglenoids

Answer 1

found in still pools and ponds. give a greenish color to the water. live on lily ponds.

Question 2

E. gracilis

Answer 2

are spindel shaped and greenish. color is caused by the presence of chloroplasts.

Question 3

Chloroplasts

Answer 3

contain chlorophyll and scattered through the cytoplasm

Question 4

locomotion

Answer 4

from the flagellum

Question 5

Flagellum

Answer 5

emerges from the reservoir, a clear flask shaped space in the anterior end. they beats at the rate of about 12 beats per second

Question 6

body covering

Answer 6

is covered with a protective but flexible pellicle that is secreted by the clear ectoplasm that surrounds the endoplasm.

Question 7

Stigma

Answer 7

“eye spot” is a reddish pigment spot that shades a swollen basal area of the flagellum.

Question 8

Why is light sensitivity important to Euglena

Answer 8

so they move up in the water when there is sun light, if they dont they will starve to death.

Question 9

osmoregulation

Answer 9

large contractile vacuole empties into the reservoir.

Question 10

feeding

Answer 10

euglena take in no solid food

Question 11

holophytic

Answer 11

nutrition making use of photosynthesis. food comes from carbon dioxide and water with sunlight.

Question 12

in older eugelena you may see what colors in cytoplasm?

Answer 12

red, brown or orange.

Question 13

Reproduction

Answer 13

longitudinal fision is when organism is free or when it is in the encysted state. begins at the anterior end and proceeds prosteriorly.