AP Organelles Practice Questions

A newly discovered unicellular organism isolated from acidic mine drainage is found to contain a cell wall, a plasma membrane, two flagella, and peroxisomes. Based on this information, the organism is likely

• a nonmotile prokaryote

• a motile bacterium

• a nonmotile eukaryote

• a motile eukaryote

Which of the following frequently imposes a limit on cell size?

• The absence of a nucleus

• the number of mitochondria in the cytoplasm

• ratios of surface area to volume

• the volume of the endomembrane system

Which of the following is a major difference between prokaryotic cells and eukaryotic cells?

• prokaryotic cells have cell walls, while eukaryotic cells do not

• eukaryotic cells have flagella, while prokaryotic cells do not

• eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not

• Prokaryotic cells are generally larger than eukaryotic cells

You have a cube of modeling clay in your hands. Which of the following changes to the shape of this cube of clay will increase its surface area to volume ratio the most

• round the sharp edges of the cube.

• Flatten the cube into a pancake shape.

• Round the clay up into a sphere.

• Stretch the cube into a long, shoebox shape.

Which structure is common to plant and animal cells?

• Chloroplast

• Central Vacuole

• Mitochondrion

• Centriole

Which of the following are found in plant, animal, and bacterial cells?

• Mitochondria

• Ribosomes

• Chloroplasts

• Endoplasmic Reticulum

In bacteria, DNA will be found in

• a membrane-bound nucleus

• mitochondria

• the nucleoid

• ribosomes

What is the function of the nuclear pore complex found in eukaryotes?

• It regulates the movement of proteins and RNAs into and out of the nucleus

• It synthesizes the proteins required to copy DNA and make mRNA

• It synthesizes secreted proteins

• It assembles ribosomes from raw materials that are synthesized in the nucleus

Which of the following statements correctly describes protein secretion from prokaryotic cells?

• Prokaryotes can't secrete proteins because they do not have endoplasmic reticulum

• Proteins secreted by prokaryotes are synthesized on ribosomes found in the cytoplasm

• Protein secretion is the same in prokaryotes as it is in eukaryotes

• Prokaryotes can't secrete proteins because they do not have ribosomes

Examination of a cell reveals a high density of ribosomes in the cytoplasm. This suggests that the cell is producing large amounts of

• polysaccharides

• proteins

• lipids

• nucleic acids