Question

Plant-like character found in euglena
(a) Flagellum
(b) Pellicle
(c) Photoreceptor
(d) Pyrenoid

Can anyone answer this with explanation?

Answer 1

Option D) Pyrenoid.

EUGLENA is the name of the organism that possesses both animal and plant traits. It is an organism with a flat form.

CHARACTERISTICS OF EUGLENA'S PLANT:

• Chlorophyll is present for photosynthesis.
• If the light is present, it uses the holophytic mode of nourishment.
• Pyrenoid possession.
• Starch granules are used to store carbohydrates and meals.

EUGLENA'S ANIMAL CHARACTERISTICS:

• The presence of eyes.
• Component for light diversion.
• Pellicle possession.
• Possessing a food reservoir and a gullet.
• Possessing a flagellum that can move.
• Having Myomeres available for movement
• osmoregulation caused by contractive vacuole contraction.
• Nutrition is holozoic in the absence of light.

They can prepare food since they are autotrophs, which also have pigments for photosynthetic activity. Euglena has chloroplasts, which enable it to photosynthesize, as well as a primitive eye spot, which senses light and causes the cell to move in order to maximize photosynthesis.

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Answer 2

The plant-like character found in euglena is (c) Photoreceptor.

Euglena:

• Euglena is a single-cell flagellate eukaryote genus.
• It is the best-known and most-studied member of the class Euglenoidea, which includes 54 genera and at least 800 species.
• Euglena are microscopic protist creatures of the Eukaryota Domain and the genus Euglena.
• These single-celled eukaryotes resemble both plant and animal cells.
• Euglena may be found in both fresh and brackish water settings, such as organic-rich ponds.
• In ponds or lakes, certain species can produce green or red "blooms."
• The single cells are biflagellate, with flagella that originate in a tiny reservoir at the cell's front.

The photoreceptor in Euglena:

• The eyespot granules, flagellum, and paraflagellar body comprise the photoreceptor system for Euglena phototaxis, known as the stigma area.
• The paraflagellar body is a crystalline structure that appears as lamellae under electron microscopy.
• This light-sensitive area is placed near the flagellum and senses light.
• It aids in phototaxis (movement toward or away from light).

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