Quiz on Non-Membranous Organelles

Where are ribosomes formed?

• Nucleus

• Mitochondria

• Nucleolus

• Cytoplasm

What type of ribosomes are involved in protein synthesis that is secreted by the cell?

• Free ribosomes

• Attached ribosomes

• None of the above

• Both free and attached ribosomes

What is the diameter of microtubules?

• 50 nm

• 100 nm

• 25 nm

• 10 nm

What is the main function of microtubules?

• Maintain cell shape

• DNA replication

• Protein synthesis

• Cell respiration

What structure do centrioles form during cell division?

• Nucleus

• Cytoplasm

• Mitotic spindle

• Cell membrane

What is the primary function of cilia?

• Absorb nutrients

• Synthesize DNA

• Brush away fluid

• Store proteins

What type of filaments are actin and myosin classified as?

• Microtubules

• Microfilaments

• Intermediate filaments

• Thick filaments

What is the function of microvilli?

• Transport organelles

• Produce energy

• Increase surface area of absorption

• Facilitate cell division

Which of the following is NOT a function of microtubules?

• Form mitotic spindle

• Maintain cell shape

• Participate in intracellular transport

• Form the contractile ring

What is the structure of cilia composed of?

• Microtubules

• Actin filaments

• Intermediate filaments

• Myosin