Protist and Fungi

What makes euglena unique among the protists?

• They come in three shapes: rod, round, or spiral.

• They use pseudopodia for movement through the water.

• They can make their own food or consume other organisms for nutrition.

• They have an oral groove that functions like a mouth for capturing food.

A student records observations about a euglena viewed through a microscope. The student records that the euglena is in constant motion and that it always points in the direction that the whip-like structure at one end of the euglena is moving.

What is the likely name and function of the whip-like structure?

• Cilia; excretion

• Flagellm; intake of oxygen

• Flagellum; locomotion

• Pseudopod; digestion

Which numbered structure in protist Y would perform the same function as the structure indicated with the arrow in protist X?

• 1

• 2

• 3

• 4

A student observed organisms in a drop of pond water using a microscope and made a list of observations in the table about the different organisms.

Which organism is described by the observations listed for Organism 4?

• Amoeba

• Bacteria

• Euglena

• Paramecium

Which structure is used by the organism for locomotion and obtaining food from its environment?

• Cilia

• Flagella

• Hyphae

• Pseudopodia

A student performs an experiment to determine the factors that favor the growth of fungi. The chart lists the experimental procedure, and the table shows the results.

What can the student interpret from the experimental results?

• Fungi grow best in warm conditions.

• Fungi grow best when provided with the most food.

• Fungi grow best when provided with the most oxygen.

• Fungi grow best in a dry environment.

A scientist grows fungi on two logs, one that lays on the ground, and the other that is partially buried so it stands vertically out of the ground. The scientist observes the growth of the fungi after a few days, as shown in the image.

What can be concluded from the image?

• The fungi show negative responses to light.

• The fungi show positive responses to water.

• The fungi show negative responses to gravity.

• The fungi show positive responses to gravity.

A student conducts an experiment on fungi by growing a species of fungi in a Petri dish. The Petri dish is placed in a dark room near a window, and the fungi are provided with a warm, moist growth medium. The student observes small, hair-like structures growing in one direction, as shown.

What can be likely inferred about the direction of growth of the hair-like structures?

• The fungi grow toward a source of light.

• The fungi grow toward a source of water.

• The fungi grow away from a source of wind.

• The fungi grow away from a source of low temperature.

A microbiologist grows four samples of the same type of mushroom (P, Q, R, and S) at different humidity levels for 30 days. The microbiologist measures the growth and records observations in the table shown.

What can be concluded from the data?

• Mushrooms grow best in humid conditions.

• Mushrooms grow best in warm temperatures.

• Mushrooms grow best in low temperatures.

• Mushrooms grow best in dry conditions.

A student listed the characteristics of two organisms that belong to the kingdom Protista.

What is the identity of each organism?

• Organism 1: Euglena; Organism 2: Amoeba

• Organism 1: Paramecium; Organism 2: Euglena

• Organism 1: Amoeba; Organism 2: Paramecium

• Organism 1: Euglena; Organism 2: Paramecium