Explanation:
Let’s identify each protist and label its parts based on standard biology knowledge for common protists shown in typical worksheets.
1. The first organism (top) is
Amoeba proteus — it has an irregular shape, moves using pseudopodia, and lacks a fixed structure.
- a.
Pseudopod (temporary projection used for movement and feeding)
- b.
Nucleus (controls cell activities; usually one large nucleus in *Amoeba*)
- c.
Food vacuole (holds digested food)
- d.
Contractile vacuole (removes excess water — often labeled near the edge)
2. The second organism (left, slipper-shaped with cilia) is
Paramecium.
- a.
Cilia (hair-like structures for movement and feeding)
- b.
Oral groove (where food enters)
- c.
Macronucleus (controls daily functions; larger, bean-shaped)
- d.
Micronucleus (involved in reproduction; smaller, round)
- e.
Anal pore (cytopyge) (where undigested waste exits)
- f.
Food vacuole (contains food being digested)
- g.
Contractile vacuole (regulates water balance)
3. The third organism (right, elongated with flagellum) is
Euglena.
- a.
Flagellum (whip-like tail for movement)
- b.
Eyespot (stigma) (light-sensitive spot that helps detect light)
- c.
Chloroplast (site of photosynthesis; gives green color)
- d.
Nucleus (controls cell functions)
- e.
Pellicle (flexible outer covering, not a rigid cell wall)
Now assign the names to the numbered blanks:
- 1.
Amoeba
- 2.
Paramecium
- 3.
Euglena
Double-checking:
- Amoeba: no cell wall, pseudopodia, contractile vacuole → matches top drawing.
- Paramecium: covered in cilia, oral groove, two nuclei → matches left drawing.
- Euglena: single flagellum, eyespot, chloroplasts, pellicle → matches right drawing.
All labels align with standard textbook diagrams.
Final Answer:
1. Amoeba
a. Pseudopod
b. Nucleus
c. Food vacuole
d. Contractile vacuole
2. Paramecium
a. Cilia
b. Oral groove
c. Macronucleus
d. Micronucleus
e. Anal pore
f. Food vacuole
g. Contractile vacuole
3. Euglena
a. Flagellum
b. Eyespot
c. Chloroplast
d. Nucleus
e. Pellicle
Parent Tip: Review the logic above to help your child master the concept of protist worksheet.
