List one plantlike feature of Euglena List two animallike fe

List one plant-like feature of Euglena.____ List two animal-like features of Euglena._____ Complete the table of characteristics found in the following unicellular eukaryotes: Name two major human diseases caused by unicellular eukaryotes. How are they transmitted? ____

Solution

4. i) Paramecium have small hair like structures called cilia. Paramecium shows two types of coordinated movements.

ii) They are Synchronous movement and Metachronous movement.

C) 1. Euglena have chloroplasts containing chlorophill a and chlorophill b. They are used in photosynthesis. This is characteristic of plant.

2. Euglena is motile which can move by means of flagella. This is characteristic of animal.

mixotroph,

Holozoic. Saprophytic and Halophytic.

Synchronous movement

Metachronous movement

Unicellular eukaryotic diseases in human:

1. Entamoeba histolytica: It is mocroscopic and monogenetic parasite causes amoebic dysentery or amoebiasis. It spread wherever the hygeinic conditions are poor.

2. Malaria: It is caused by plasmodium parasites. Plasmodium vivax is the most common malarial parasite. It is spread by female Anopheles mosquito.

Characteristic	Amoeba	Paramecium	Euglena
Mode of nutrition	Holozoic nutrition	Holozoic nutrition	mixotroph, Holozoic. Saprophytic and Halophytic.
Movement	Pseudopodia, amoeboid movement.	Synchronous movement Metachronous movement	Flagellum-flagellar movement, wriggling movement- Euglenoid movment. Light sensitive organelle eyespot-Positive Phototaxis
No. of nuclei	Single nucleus	2 nuclie, Macronucleus and Micronucleus	Single nucleus
Mechanism of water balance	contractile vacuole, discharge wastes and excess of water by osmosis	Contractile vacuole, this is osmoregulatory structure.	Contractile vacuole, discharge excess of water by osmosis