Question 1

Which of the following best describes the nutritional mode of Euglena under optimal light conditions?

Accepted Answer

Photoautotrophic

Question 2

A scientist observes a cell with a contractile vacuole, flagellum, and chloroplasts. Which organism is most likely being observed?

Accepted Answer

Euglena

Question 3

Which of the following is TRUE regarding binomial nomenclature?

Accepted Answer

The genus name is capitalized and italicized; the species name is lowercase and italicized.

Question 4

Which cell type is correctly matched with its function or feature?

Accepted Answer

Neuron: cell body contains nucleus

Question 5

A potato cell is stained with iodine (IKI) and turns blue-black. What cellular structure is being identified?

Accepted Answer

Amyloplast

Question 6

Which of the following is a correct description of a cyanobacterium’s ability to fix nitrogen?

Accepted Answer

It converts $N_2$ gas to $NH_3$ in heterocysts.

Question 7

Which of the following cell shapes is correctly matched with its bacterial genus?

Accepted Answer

Spirillum: spiral-shaped

Question 8

A student observes cytoplasmic streaming and pseudopodia in a cell under the microscope. Which organism is most likely being observed?

Accepted Answer

Amoeba

Question 9

Which of the following is a mutualistic relationship described in the study materials?

Accepted Answer

Trichonympha with termites

Question 10

Which of the following statements about plant cells is correct?

Accepted Answer

Amyloplasts store starch and stain blue-black with iodine.

Question 11

Which of the following is NOT a function of the contractile vacuole?

Accepted Answer

Storing starch for energy

Question 12

Which of the following best explains why Elodea cells become plasmolyzed in 10% NaCl solution?

Accepted Answer

Water leaves the cell due to a hypertonic environment.

Question 13

Which of the following is a distinguishing feature of prokaryotic cells compared to eukaryotic cells?

Accepted Answer

Presence of peptidoglycan in cell walls

Question 14

Which of the following organisms is correctly matched with its method of locomotion?

Accepted Answer

Amoeba: pseudopodia

Question 15

Which of the following is TRUE about red blood cells (RBCs) in mammals?

Accepted Answer

They lack a nucleus at maturity.

Question 16

Which of the following is a correct statement about heterocysts in cyanobacteria?

Accepted Answer

They are specialized for nitrogen fixation.

Question 17

A scientist is studying a bacterium that is rod-shaped and forms chains. Which genus is most likely being observed?

Accepted Answer

Bacillus

Question 18

Which of the following is a correct match between a cell type and its staining property?

Accepted Answer

White blood cells: stain blue due to nucleus

Question 19

Which of the following is a correct description of the function of mycelium in fungi?

Accepted Answer

It is a mass of hyphae that absorbs nutrients.

Question 20

Which of the following equations correctly represents the process of photosynthesis in cyanobacteria?

Accepted Answer

$6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2$

Study List For Protists Lab

Study Guide - Practice Questions