Biology Lab Quiz- Protists

How does the hydra catch, ingest, and digest its food

They use tentacles to catch food and bring it to their mouths. Then they digest their food in a gastrovascular cavity and unabsorbed foods come out of their mouth.

What is the purpose of Trichonympha?

To digest cellulose from the wood that the termites eat. They have a symbiotic relationship with termites

Protists in Termites

Trichonympha phylum: metamonad class: parabasilia kingdom: excavata

Is the paramecium multimicronucleatum ingesting the yeast? How? Does the yeast's color change inside the paramecium? If so, what is causing the color change?

As the paramecium stuffs itself with a meal of pigmented yeast, vacuoles form. As food particles are digested by acidic enzymes found in lysosomes, the congo red will reveal the pH drop-color will shift from a more alkaline red, to a more acidic blue.

How does the planaria eat?

Planaria suck food into the gastrovascular cavity with a long, tube-like pharynx that extends from the middle of their ventral surface.

Propose a hypothesis for how a paramecium bursaria species obtains the nutrients and energy it needs.

The paramecium is green which means he's a photosynthetic organism that makes his own food.

Which species are protists and also called protozoans?

paramecium, planaria, hydra

planaria

phylum: Platyhelminthes genus: planaria kingdom: animalia

termites

phylum: anthropoda class: insecta

Paramecium bursaria

phylum: ciliphora genus: paramecium kingdom: Chromalveolata

Paramecium multimicronucleatum

phylum: ciliphora genus: paramecium kingdom: Chromalveolata

hydra

phylum: cnidaria genus: hydra kingdom: animalia

Which species have gastrovascular cavities

planaria and hydra

What type of body symmetry do Hydra exhibit

radial

Which species belong to the kingdom Animalia

termites

Which species have a complete digestive tract

termites

Describe the movement of the P. mulimicronucleatum or P. bursaria?

with the use of cilia